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Emax Problem Diagnosis

Emax Problem Diagnosis

2010-02-05 by preslavl

Hello,

I wanted to see if I can get some help diagnosing the problem(s) of an Emax I i just purchased.

Here are they symptoms:


- No Frequency Cutoff - I calibrated the data slider and it registers the frequency cutoff (FC) going up in numbers but you cannot hear any change.

- No Attack in the ADSR or the filter ADSR - cannot hear an increase in attack even when the values increase.

- No Volume - volume slider was calibrated and it seems to work but moving it up or down does not make a difference...volume seems to be at 100%. 


These are pretty much all the symptoms I've notices so far. 


Things I've covered so far:

- I replaced the 4 SSM 2300 that were in the sampler - it did not seem to make ANY difference. I replaced the original chips with ones marked: "SSM2300 8652". I purchased these on eBAY. Could this be the issue?

- I went through the recalibration procedure - no change.

- I performed the diagnostic tests inside the Master menu (8, 8, YES). ERAM and Bank RAM checked out OK and all other tests seemed to have passed. 


Any ideas anyone?


Thank you,

Preslav

Re: [emax] Emax Problem Diagnosis

2010-02-05 by jammie

check the 5 v supply as this is the control voltage of the filters 

the cv control gets sent to 1 of the 2300 for fc 1 for resonance 1 is for the vca and thhe other is for the dacs for the 8 note polyphony each octal sample and hold circuits for each of the functions 

 check to see that you are getting the corect voltage for operation of the 2300 or 4051 or smp08

if i was to change them then i would upgrade them to the newer faster slew rate the smp08 are the best and are from analog devices and are direct replacements for the ssm2300 which are 4051 equivelents made by emu

the smp08  they have a faster slew rate and have faster transient response with less distortion 


you should be getting 12vdc vdd and grnd
Show quoted textHide quoted text
  ----- Original Message ----- 
  From: preslavl 
  To: emax@yahoogroups.com 
  Sent: Friday, February 05, 2010 5:54 PM
  Subject: [emax] Emax Problem Diagnosis


    
  Hello,

  I wanted to see if I can get some help diagnosing the problem(s) of an Emax I i just purchased.

  Here are they symptoms:

  - No Frequency Cutoff - I calibrated the data slider and it registers the frequency cutoff (FC) going up in numbers but you cannot hear any change.

  - No Attack in the ADSR or the filter ADSR - cannot hear an increase in attack even when the values increase.

  - No Volume - volume slider was calibrated and it seems to work but moving it up or down does not make a difference...volume seems to be at 100%. 

  These are pretty much all the symptoms I've notices so far. 

  Things I've covered so far:

  - I replaced the 4 SSM 2300 that were in the sampler - it did not seem to make ANY difference. I replaced the original chips with ones marked: "SSM2300 8652". I purchased these on eBAY. Could this be the issue?

  - I went through the recalibration procedure - no change.

  - I performed the diagnostic tests inside the Master menu (8, 8, YES). ERAM and Bank RAM checked out OK and all other tests seemed to have passed. 

  Any ideas anyone?

  Thank you,

  Preslav



  


------------------------------------------------------------------------------



  No virus found in this incoming message.
  Checked by AVG - www.avg.com 
  Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date: 02/05/10 07:35:00


[Non-text portions of this message have been removed]

Re: Emax Problem Diagnosis

2010-02-05 by preslavl

Let me make sure I understand you correctly:

What you describe is one test: checking that the 2300s are getting the correct voltage from the 5v supply? And I should be getting +/- 12V and ground? Are there testpoints visible or is it pretty obvious where to test it?

Thanks for the quick reply


--- In emax@yahoogroups.com, "jammie" <jammie.emma@...> wrote:
Show quoted textHide quoted text
>
> check the 5 v supply as this is the control voltage of the filters 
> 
> the cv control gets sent to 1 of the 2300 for fc 1 for resonance 1 is for the vca and thhe other is for the dacs for the 8 note polyphony each octal sample and hold circuits for each of the functions 
> 
>  check to see that you are getting the corect voltage for operation of the 2300 or 4051 or smp08
> 
> if i was to change them then i would upgrade them to the newer faster slew rate the smp08 are the best and are from analog devices and are direct replacements for the ssm2300 which are 4051 equivelents made by emu
> 
> the smp08  they have a faster slew rate and have faster transient response with less distortion 
> 
> 
> you should be getting 12vdc vdd and grnd
> 
>   ----- Original Message ----- 
>   From: preslavl 
>   To: emax@yahoogroups.com 
>   Sent: Friday, February 05, 2010 5:54 PM
>   Subject: [emax] Emax Problem Diagnosis
> 
> 
>     
>   Hello,
> 
>   I wanted to see if I can get some help diagnosing the problem(s) of an Emax I i just purchased.
> 
>   Here are they symptoms:
> 
>   - No Frequency Cutoff - I calibrated the data slider and it registers the frequency cutoff (FC) going up in numbers but you cannot hear any change.
> 
>   - No Attack in the ADSR or the filter ADSR - cannot hear an increase in attack even when the values increase.
> 
>   - No Volume - volume slider was calibrated and it seems to work but moving it up or down does not make a difference...volume seems to be at 100%. 
> 
>   These are pretty much all the symptoms I've notices so far. 
> 
>   Things I've covered so far:
> 
>   - I replaced the 4 SSM 2300 that were in the sampler - it did not seem to make ANY difference. I replaced the original chips with ones marked: "SSM2300 8652". I purchased these on eBAY. Could this be the issue?
> 
>   - I went through the recalibration procedure - no change.
> 
>   - I performed the diagnostic tests inside the Master menu (8, 8, YES). ERAM and Bank RAM checked out OK and all other tests seemed to have passed. 
> 
>   Any ideas anyone?
> 
>   Thank you,
> 
>   Preslav
> 
> 
> 
>   
> 
> 
> ------------------------------------------------------------------------------
> 
> 
> 
>   No virus found in this incoming message.
>   Checked by AVG - www.avg.com 
>   Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date: 02/05/10 07:35:00
> 
> 
> [Non-text portions of this message have been removed]
>

Re: [emax] Re: Emax Problem Diagnosis

2010-02-05 by jammie

right the cv (control voltages for the filter cutoff vca and resonance are sent by the cv circuit ranging from 0v-5v

which is sent by the cpu for control off the filter depending on envelope settings or external controllers

now the ssm2300 are sample and hold circuits they send out the digital info into analog voltages which are sampled then transmitted as a voltage in the range of 0-5v 0v = 0 resonance 5v = full resonance 

or cut off or vca volume 

thats what the first 3 ssm2300 deal with

the 4th ssm2300 deals with the digital signal comming from the dacs this is the samples that are transmitted from the ram to the dacs and to the samplre and hold circuits which send out voltages 0-5v which corispond to the digital sound into analog format 

now if you are getting sound out then the ssm2300 for that part of the circuit is working it seems to be the cv circuit that you are having a problem with not being sent into the ssm2300 to be made into the analog control voltages
Show quoted textHide quoted text
  ----- Original Message ----- 
  From: preslavl 
  To: emax@yahoogroups.com 
  Sent: Friday, February 05, 2010 7:18 PM
  Subject: [emax] Re: Emax Problem Diagnosis


    
  Let me make sure I understand you correctly:

  What you describe is one test: checking that the 2300s are getting the correct voltage from the 5v supply? And I should be getting +/- 12V and ground? Are there testpoints visible or is it pretty obvious where to test it?

  Thanks for the quick reply

  --- In emax@yahoogroups.com, "jammie" <jammie.emma@...> wrote:
  >
  > check the 5 v supply as this is the control voltage of the filters 
  > 
  > the cv control gets sent to 1 of the 2300 for fc 1 for resonance 1 is for the vca and thhe other is for the dacs for the 8 note polyphony each octal sample and hold circuits for each of the functions 
  > 
  > check to see that you are getting the corect voltage for operation of the 2300 or 4051 or smp08
  > 
  > if i was to change them then i would upgrade them to the newer faster slew rate the smp08 are the best and are from analog devices and are direct replacements for the ssm2300 which are 4051 equivelents made by emu
  > 
  > the smp08 they have a faster slew rate and have faster transient response with less distortion 
  > 
  > 
  > you should be getting 12vdc vdd and grnd
  > 
  > ----- Original Message ----- 
  > From: preslavl 
  > To: emax@yahoogroups.com 
  > Sent: Friday, February 05, 2010 5:54 PM
  > Subject: [emax] Emax Problem Diagnosis
  > 
  > 
  > 
  > Hello,
  > 
  > I wanted to see if I can get some help diagnosing the problem(s) of an Emax I i just purchased.
  > 
  > Here are they symptoms:
  > 
  > - No Frequency Cutoff - I calibrated the data slider and it registers the frequency cutoff (FC) going up in numbers but you cannot hear any change.
  > 
  > - No Attack in the ADSR or the filter ADSR - cannot hear an increase in attack even when the values increase.
  > 
  > - No Volume - volume slider was calibrated and it seems to work but moving it up or down does not make a difference...volume seems to be at 100%. 
  > 
  > These are pretty much all the symptoms I've notices so far. 
  > 
  > Things I've covered so far:
  > 
  > - I replaced the 4 SSM 2300 that were in the sampler - it did not seem to make ANY difference. I replaced the original chips with ones marked: "SSM2300 8652". I purchased these on eBAY. Could this be the issue?
  > 
  > - I went through the recalibration procedure - no change.
  > 
  > - I performed the diagnostic tests inside the Master menu (8, 8, YES). ERAM and Bank RAM checked out OK and all other tests seemed to have passed. 
  > 
  > Any ideas anyone?
  > 
  > Thank you,
  > 
  > Preslav
  > 
  > 
  > 
  > 
  > 
  > 
  > ----------------------------------------------------------
  > 
  > 
  > 
  > No virus found in this incoming message.
  > Checked by AVG - www.avg.com 
  > Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date: 02/05/10 07:35:00
  > 
  > 
  > [Non-text portions of this message have been removed]
  >



  


------------------------------------------------------------------------------



  No virus found in this incoming message.
  Checked by AVG - www.avg.com 
  Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date: 02/05/10 07:35:00


[Non-text portions of this message have been removed]

Re: Emax Problem Diagnosis

2010-02-05 by preslavl

Ok thanks that makes sense. I have the Emax apart right now so I just want to make sure I am going to test the voltages correctly. Should I test them at the connector on the Power supply side or right at the legs of the 2300s? Thanks again,

Preslav

--- In emax@yahoogroups.com, "jammie" <jammie.emma@...> wrote:
Show quoted textHide quoted text
>
> right the cv (control voltages for the filter cutoff vca and resonance are sent by the cv circuit ranging from 0v-5v
> 
> which is sent by the cpu for control off the filter depending on envelope settings or external controllers
> 
> now the ssm2300 are sample and hold circuits they send out the digital info into analog voltages which are sampled then transmitted as a voltage in the range of 0-5v 0v = 0 resonance 5v = full resonance 
> 
> or cut off or vca volume 
> 
> thats what the first 3 ssm2300 deal with
> 
> the 4th ssm2300 deals with the digital signal comming from the dacs this is the samples that are transmitted from the ram to the dacs and to the samplre and hold circuits which send out voltages 0-5v which corispond to the digital sound into analog format 
> 
> now if you are getting sound out then the ssm2300 for that part of the circuit is working it seems to be the cv circuit that you are having a problem with not being sent into the ssm2300 to be made into the analog control voltages
> 
>   ----- Original Message ----- 
>   From: preslavl 
>   To: emax@yahoogroups.com 
>   Sent: Friday, February 05, 2010 7:18 PM
>   Subject: [emax] Re: Emax Problem Diagnosis
> 
> 
>     
>   Let me make sure I understand you correctly:
> 
>   What you describe is one test: checking that the 2300s are getting the correct voltage from the 5v supply? And I should be getting +/- 12V and ground? Are there testpoints visible or is it pretty obvious where to test it?
> 
>   Thanks for the quick reply
> 
>   --- In emax@yahoogroups.com, "jammie" <jammie.emma@> wrote:
>   >
>   > check the 5 v supply as this is the control voltage of the filters 
>   > 
>   > the cv control gets sent to 1 of the 2300 for fc 1 for resonance 1 is for the vca and thhe other is for the dacs for the 8 note polyphony each octal sample and hold circuits for each of the functions 
>   > 
>   > check to see that you are getting the corect voltage for operation of the 2300 or 4051 or smp08
>   > 
>   > if i was to change them then i would upgrade them to the newer faster slew rate the smp08 are the best and are from analog devices and are direct replacements for the ssm2300 which are 4051 equivelents made by emu
>   > 
>   > the smp08 they have a faster slew rate and have faster transient response with less distortion 
>   > 
>   > 
>   > you should be getting 12vdc vdd and grnd
>   > 
>   > ----- Original Message ----- 
>   > From: preslavl 
>   > To: emax@yahoogroups.com 
>   > Sent: Friday, February 05, 2010 5:54 PM
>   > Subject: [emax] Emax Problem Diagnosis
>   > 
>   > 
>   > 
>   > Hello,
>   > 
>   > I wanted to see if I can get some help diagnosing the problem(s) of an Emax I i just purchased.
>   > 
>   > Here are they symptoms:
>   > 
>   > - No Frequency Cutoff - I calibrated the data slider and it registers the frequency cutoff (FC) going up in numbers but you cannot hear any change.
>   > 
>   > - No Attack in the ADSR or the filter ADSR - cannot hear an increase in attack even when the values increase.
>   > 
>   > - No Volume - volume slider was calibrated and it seems to work but moving it up or down does not make a difference...volume seems to be at 100%. 
>   > 
>   > These are pretty much all the symptoms I've notices so far. 
>   > 
>   > Things I've covered so far:
>   > 
>   > - I replaced the 4 SSM 2300 that were in the sampler - it did not seem to make ANY difference. I replaced the original chips with ones marked: "SSM2300 8652". I purchased these on eBAY. Could this be the issue?
>   > 
>   > - I went through the recalibration procedure - no change.
>   > 
>   > - I performed the diagnostic tests inside the Master menu (8, 8, YES). ERAM and Bank RAM checked out OK and all other tests seemed to have passed. 
>   > 
>   > Any ideas anyone?
>   > 
>   > Thank you,
>   > 
>   > Preslav
>   > 
>   > 
>   > 
>   > 
>   > 
>   > 
>   > ----------------------------------------------------------
>   > 
>   > 
>   > 
>   > No virus found in this incoming message.
>   > Checked by AVG - www.avg.com 
>   > Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date: 02/05/10 07:35:00
>   > 
>   > 
>   > [Non-text portions of this message have been removed]
>   >
> 
> 
> 
>   
> 
> 
> ------------------------------------------------------------------------------
> 
> 
> 
>   No virus found in this incoming message.
>   Checked by AVG - www.avg.com 
>   Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date: 02/05/10 07:35:00
> 
> 
> [Non-text portions of this message have been removed]
>

Re: Emax Problem Diagnosis

2010-02-05 by preslavl

So I tried testing the voltages at the connector that goes between the PS board and the CPU Board. I tested on the PS side. If I follow the color coding I read in a message on here somewhere:  Yellow (+5V), Orange (+12V), Purple (-12V), and Green (0V/Ground). 

I get nowhere near those voltages...now I might be doing this completely wrong, but I get +12V at the Green wire, and 0v at the Yellow (where I should be getting +5V). I also get +17V at the Orange wire...

Again, I'm not sure if I'm testing at the correct points. By the way I'm still getting sound out of the Emax so it has not exploded in my hands as of yet. 


 

--- In emax@yahoogroups.com, "jammie" <jammie.emma@...> wrote:
Show quoted textHide quoted text
>
> right the cv (control voltages for the filter cutoff vca and resonance are sent by the cv circuit ranging from 0v-5v
> 
> which is sent by the cpu for control off the filter depending on envelope settings or external controllers
> 
> now the ssm2300 are sample and hold circuits they send out the digital info into analog voltages which are sampled then transmitted as a voltage in the range of 0-5v 0v = 0 resonance 5v = full resonance 
> 
> or cut off or vca volume 
> 
> thats what the first 3 ssm2300 deal with
> 
> the 4th ssm2300 deals with the digital signal comming from the dacs this is the samples that are transmitted from the ram to the dacs and to the samplre and hold circuits which send out voltages 0-5v which corispond to the digital sound into analog format 
> 
> now if you are getting sound out then the ssm2300 for that part of the circuit is working it seems to be the cv circuit that you are having a problem with not being sent into the ssm2300 to be made into the analog control voltages
> 
>   ----- Original Message ----- 
>   From: preslavl 
>   To: emax@yahoogroups.com 
>   Sent: Friday, February 05, 2010 7:18 PM
>   Subject: [emax] Re: Emax Problem Diagnosis
> 
> 
>     
>   Let me make sure I understand you correctly:
> 
>   What you describe is one test: checking that the 2300s are getting the correct voltage from the 5v supply? And I should be getting +/- 12V and ground? Are there testpoints visible or is it pretty obvious where to test it?
> 
>   Thanks for the quick reply
> 
>   --- In emax@...m, "jammie" <jammie.emma@> wrote:
>   >
>   > check the 5 v supply as this is the control voltage of the filters 
>   > 
>   > the cv control gets sent to 1 of the 2300 for fc 1 for resonance 1 is for the vca and thhe other is for the dacs for the 8 note polyphony each octal sample and hold circuits for each of the functions 
>   > 
>   > check to see that you are getting the corect voltage for operation of the 2300 or 4051 or smp08
>   > 
>   > if i was to change them then i would upgrade them to the newer faster slew rate the smp08 are the best and are from analog devices and are direct replacements for the ssm2300 which are 4051 equivelents made by emu
>   > 
>   > the smp08 they have a faster slew rate and have faster transient response with less distortion 
>   > 
>   > 
>   > you should be getting 12vdc vdd and grnd
>   > 
>   > ----- Original Message ----- 
>   > From: preslavl 
>   > To: emax@yahoogroups.com 
>   > Sent: Friday, February 05, 2010 5:54 PM
>   > Subject: [emax] Emax Problem Diagnosis
>   > 
>   > 
>   > 
>   > Hello,
>   > 
>   > I wanted to see if I can get some help diagnosing the problem(s) of an Emax I i just purchased.
>   > 
>   > Here are they symptoms:
>   > 
>   > - No Frequency Cutoff - I calibrated the data slider and it registers the frequency cutoff (FC) going up in numbers but you cannot hear any change.
>   > 
>   > - No Attack in the ADSR or the filter ADSR - cannot hear an increase in attack even when the values increase.
>   > 
>   > - No Volume - volume slider was calibrated and it seems to work but moving it up or down does not make a difference...volume seems to be at 100%. 
>   > 
>   > These are pretty much all the symptoms I've notices so far. 
>   > 
>   > Things I've covered so far:
>   > 
>   > - I replaced the 4 SSM 2300 that were in the sampler - it did not seem to make ANY difference. I replaced the original chips with ones marked: "SSM2300 8652". I purchased these on eBAY. Could this be the issue?
>   > 
>   > - I went through the recalibration procedure - no change.
>   > 
>   > - I performed the diagnostic tests inside the Master menu (8, 8, YES). ERAM and Bank RAM checked out OK and all other tests seemed to have passed. 
>   > 
>   > Any ideas anyone?
>   > 
>   > Thank you,
>   > 
>   > Preslav
>   > 
>   > 
>   > 
>   > 
>   > 
>   > 
>   > ----------------------------------------------------------
>   > 
>   > 
>   > 
>   > No virus found in this incoming message.
>   > Checked by AVG - www.avg.com 
>   > Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date: 02/05/10 07:35:00
>   > 
>   > 
>   > [Non-text portions of this message have been removed]
>   >
> 
> 
> 
>   
> 
> 
> ------------------------------------------------------------------------------
> 
> 
> 
>   No virus found in this incoming message.
>   Checked by AVG - www.avg.com 
>   Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date: 02/05/10 07:35:00
> 
> 
> [Non-text portions of this message have been removed]
>

Re: [emax] Re: Emax Problem Diagnosis

2010-02-06 by jammie

test each wire conection

orange and green wires red probe on the orange black probe on the green for +12v

yellow and green  wires red probe for yellow wire black probe on the green wire for +5v

purple and green wires red probe on the green wire black probe on the purple wire for -12v

test this for me and give me your readings

does the floppy drive work as this is the 5v line 

the 5 v on the mother boards for other circuits gets its 5v from power regulators of the +12v supply
Show quoted textHide quoted text
  ----- Original Message ----- 
  From: preslavl 
  To: emax@yahoogroups.com 
  Sent: Friday, February 05, 2010 9:37 PM
  Subject: [emax] Re: Emax Problem Diagnosis


    
  So I tried testing the voltages at the connector that goes between the PS board and the CPU Board. I tested on the PS side. If I follow the color coding I read in a message on here somewhere: Yellow (+5V), Orange (+12V), Purple (-12V), and Green (0V/Ground). 

  I get nowhere near those voltages...now I might be doing this completely wrong, but I get +12V at the Green wire, and 0v at the Yellow (where I should be getting +5V). I also get +17V at the Orange wire...

  Again, I'm not sure if I'm testing at the correct points. By the way I'm still getting sound out of the Emax so it has not exploded in my hands as of yet. 

  --- In emax@yahoogroups.com, "jammie" <jammie.emma@...> wrote:
  >
  > right the cv (control voltages for the filter cutoff vca and resonance are sent by the cv circuit ranging from 0v-5v
  > 
  > which is sent by the cpu for control off the filter depending on envelope settings or external controllers
  > 
  > now the ssm2300 are sample and hold circuits they send out the digital info into analog voltages which are sampled then transmitted as a voltage in the range of 0-5v 0v = 0 resonance 5v = full resonance 
  > 
  > or cut off or vca volume 
  > 
  > thats what the first 3 ssm2300 deal with
  > 
  > the 4th ssm2300 deals with the digital signal comming from the dacs this is the samples that are transmitted from the ram to the dacs and to the samplre and hold circuits which send out voltages 0-5v which corispond to the digital sound into analog format 
  > 
  > now if you are getting sound out then the ssm2300 for that part of the circuit is working it seems to be the cv circuit that you are having a problem with not being sent into the ssm2300 to be made into the analog control voltages
  > 
  > ----- Original Message ----- 
  > From: preslavl 
  > To: emax@yahoogroups.com 
  > Sent: Friday, February 05, 2010 7:18 PM
  > Subject: [emax] Re: Emax Problem Diagnosis
  > 
  > 
  > 
  > Let me make sure I understand you correctly:
  > 
  > What you describe is one test: checking that the 2300s are getting the correct voltage from the 5v supply? And I should be getting +/- 12V and ground? Are there testpoints visible or is it pretty obvious where to test it?
  > 
  > Thanks for the quick reply
  > 
  > --- In emax@yahoogroups.com, "jammie" <jammie.emma@> wrote:
  > >
  > > check the 5 v supply as this is the control voltage of the filters 
  > > 
  > > the cv control gets sent to 1 of the 2300 for fc 1 for resonance 1 is for the vca and thhe other is for the dacs for the 8 note polyphony each octal sample and hold circuits for each of the functions 
  > > 
  > > check to see that you are getting the corect voltage for operation of the 2300 or 4051 or smp08
  > > 
  > > if i was to change them then i would upgrade them to the newer faster slew rate the smp08 are the best and are from analog devices and are direct replacements for the ssm2300 which are 4051 equivelents made by emu
  > > 
  > > the smp08 they have a faster slew rate and have faster transient response with less distortion 
  > > 
  > > 
  > > you should be getting 12vdc vdd and grnd
  > > 
  > > ----- Original Message ----- 
  > > From: preslavl 
  > > To: emax@yahoogroups.com 
  > > Sent: Friday, February 05, 2010 5:54 PM
  > > Subject: [emax] Emax Problem Diagnosis
  > > 
  > > 
  > > 
  > > Hello,
  > > 
  > > I wanted to see if I can get some help diagnosing the problem(s) of an Emax I i just purchased.
  > > 
  > > Here are they symptoms:
  > > 
  > > - No Frequency Cutoff - I calibrated the data slider and it registers the frequency cutoff (FC) going up in numbers but you cannot hear any change.
  > > 
  > > - No Attack in the ADSR or the filter ADSR - cannot hear an increase in attack even when the values increase.
  > > 
  > > - No Volume - volume slider was calibrated and it seems to work but moving it up or down does not make a difference...volume seems to be at 100%. 
  > > 
  > > These are pretty much all the symptoms I've notices so far. 
  > > 
  > > Things I've covered so far:
  > > 
  > > - I replaced the 4 SSM 2300 that were in the sampler - it did not seem to make ANY difference. I replaced the original chips with ones marked: "SSM2300 8652". I purchased these on eBAY. Could this be the issue?
  > > 
  > > - I went through the recalibration procedure - no change.
  > > 
  > > - I performed the diagnostic tests inside the Master menu (8, 8, YES). ERAM and Bank RAM checked out OK and all other tests seemed to have passed. 
  > > 
  > > Any ideas anyone?
  > > 
  > > Thank you,
  > > 
  > > Preslav
  > > 
  > > 
  > > 
  > > 
  > > 
  > > 
  > > ----------------------------------------------------------
  > > 
  > > 
  > > 
  > > No virus found in this incoming message.
  > > Checked by AVG - www.avg.com 
  > > Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date: 02/05/10 07:35:00
  > > 
  > > 
  > > [Non-text portions of this message have been removed]
  > >
  > 
  > 
  > 
  > 
  > 
  > 
  > ----------------------------------------------------------
  > 
  > 
  > 
  > No virus found in this incoming message.
  > Checked by AVG - www.avg.com 
  > Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date: 02/05/10 07:35:00
  > 
  > 
  > [Non-text portions of this message have been removed]
  >



  


------------------------------------------------------------------------------



  No virus found in this incoming message.
  Checked by AVG - www.avg.com 
  Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date: 02/05/10 07:35:00


[Non-text portions of this message have been removed]

Re: [emax] Re: Emax Problem Diagnosis

2010-02-06 by Preslav Lefterov

Thanks for your help. Here are the readings:

OR/GR = 12.48V
YE/GR =  5.0V
PU/GR = 12.18 (if i measure with red probe on green wire and black probe on
the purple) or -12.18V (if I measure with the red probe on the purple and
black probe on the green)

The floppy drive works perfectly...it loads the OS and and samples/presets.

I appreciate your time.

Preslav

On Fri, Feb 5, 2010 at 7:17 PM, jammie <jammie.emma@...> wrote:

>
>
>
> test each wire conection
>
> orange and green wires red probe on the orange black probe on the green for
> +12v
>
> yellow and green wires red probe for yellow wire black probe on the green
> wire for +5v
>
> purple and green wires red probe on the green wire black probe on the
> purple wire for -12v
>
> test this for me and give me your readings
>
> does the floppy drive work as this is the 5v line
>
> the 5 v on the mother boards for other circuits gets its 5v from power
> regulators of the +12v supply
>
> ----- Original Message -----
> From: preslavl
> To: emax@yahoogroups.com <emax%40yahoogroups.com>
> Sent: Friday, February 05, 2010 9:37 PM
> Subject: [emax] Re: Emax Problem Diagnosis
>
> So I tried testing the voltages at the connector that goes between the PS
> board and the CPU Board. I tested on the PS side. If I follow the color
> coding I read in a message on here somewhere: Yellow (+5V), Orange (+12V),
> Purple (-12V), and Green (0V/Ground).
>
> I get nowhere near those voltages...now I might be doing this completely
> wrong, but I get +12V at the Green wire, and 0v at the Yellow (where I
> should be getting +5V). I also get +17V at the Orange wire...
>
> Again, I'm not sure if I'm testing at the correct points. By the way I'm
> still getting sound out of the Emax so it has not exploded in my hands as of
> yet.
>
> --- In emax@yahoogroups.com <emax%40yahoogroups.com>, "jammie"
> <jammie.emma@...> wrote:
> >
> > right the cv (control voltages for the filter cutoff vca and resonance
> are sent by the cv circuit ranging from 0v-5v
> >
> > which is sent by the cpu for control off the filter depending on envelope
> settings or external controllers
> >
> > now the ssm2300 are sample and hold circuits they send out the digital
> info into analog voltages which are sampled then transmitted as a voltage in
> the range of 0-5v 0v = 0 resonance 5v = full resonance
> >
> > or cut off or vca volume
> >
> > thats what the first 3 ssm2300 deal with
> >
> > the 4th ssm2300 deals with the digital signal comming from the dacs this
> is the samples that are transmitted from the ram to the dacs and to the
> samplre and hold circuits which send out voltages 0-5v which corispond to
> the digital sound into analog format
> >
> > now if you are getting sound out then the ssm2300 for that part of the
> circuit is working it seems to be the cv circuit that you are having a
> problem with not being sent into the ssm2300 to be made into the analog
> control voltages
> >
> > ----- Original Message -----
> > From: preslavl
> > To: emax@yahoogroups.com <emax%40yahoogroups.com>
> > Sent: Friday, February 05, 2010 7:18 PM
> > Subject: [emax] Re: Emax Problem Diagnosis
> >
> >
> >
> > Let me make sure I understand you correctly:
> >
> > What you describe is one test: checking that the 2300s are getting the
> correct voltage from the 5v supply? And I should be getting +/- 12V and
> ground? Are there testpoints visible or is it pretty obvious where to test
> it?
> >
> > Thanks for the quick reply
> >
> > --- In emax@yahoogroups.com <emax%40yahoogroups.com>, "jammie"
> <jammie.emma@> wrote:
> > >
> > > check the 5 v supply as this is the control voltage of the filters
> > >
> > > the cv control gets sent to 1 of the 2300 for fc 1 for resonance 1 is
> for the vca and thhe other is for the dacs for the 8 note polyphony each
> octal sample and hold circuits for each of the functions
> > >
> > > check to see that you are getting the corect voltage for operation of
> the 2300 or 4051 or smp08
> > >
> > > if i was to change them then i would upgrade them to the newer faster
> slew rate the smp08 are the best and are from analog devices and are direct
> replacements for the ssm2300 which are 4051 equivelents made by emu
> > >
> > > the smp08 they have a faster slew rate and have faster transient
> response with less distortion
> > >
> > >
> > > you should be getting 12vdc vdd and grnd
> > >
> > > ----- Original Message -----
> > > From: preslavl
> > > To: emax@yahoogroups.com <emax%40yahoogroups.com>
> > > Sent: Friday, February 05, 2010 5:54 PM
> > > Subject: [emax] Emax Problem Diagnosis
> > >
> > >
> > >
> > > Hello,
> > >
> > > I wanted to see if I can get some help diagnosing the problem(s) of an
> Emax I i just purchased.
> > >
> > > Here are they symptoms:
> > >
> > > - No Frequency Cutoff - I calibrated the data slider and it registers
> the frequency cutoff (FC) going up in numbers but you cannot hear any
> change.
> > >
> > > - No Attack in the ADSR or the filter ADSR - cannot hear an increase in
> attack even when the values increase.
> > >
> > > - No Volume - volume slider was calibrated and it seems to work but
> moving it up or down does not make a difference...volume seems to be at
> 100%.
> > >
> > > These are pretty much all the symptoms I've notices so far.
> > >
> > > Things I've covered so far:
> > >
> > > - I replaced the 4 SSM 2300 that were in the sampler - it did not seem
> to make ANY difference. I replaced the original chips with ones marked:
> "SSM2300 8652". I purchased these on eBAY. Could this be the issue?
> > >
> > > - I went through the recalibration procedure - no change.
> > >
> > > - I performed the diagnostic tests inside the Master menu (8, 8, YES).
> ERAM and Bank RAM checked out OK and all other tests seemed to have passed.
> > >
> > > Any ideas anyone?
> > >
> > > Thank you,
> > >
> > > Preslav
> > >
> > >
> > >
> > >
> > >
> > >
> > > ----------------------------------------------------------
> > >
> > >
> > >
> > > No virus found in this incoming message.
> > > Checked by AVG - www.avg.com
> > > Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date:
> 02/05/10 07:35:00
> > >
> > >
> > > [Non-text portions of this message have been removed]
> > >
> >
> >
> >
> >
> >
> >
> > ----------------------------------------------------------
> >
> >
> >
> > No virus found in this incoming message.
> > Checked by AVG - www.avg.com
> > Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date: 02/05/10
> 07:35:00
> >
> >
> > [Non-text portions of this message have been removed]
> >
>
> ----------------------------------------------------------
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date: 02/05/10
> 07:35:00
>
> [Non-text portions of this message have been removed]
>
>  
>


[Non-text portions of this message have been removed]

Re: [emax] Re: Emax Problem Diagnosis

2010-02-06 by jammie

nothing wrong with the psu voltages are correct

right the 4 ssm2300

are like this i looked at the schematic they are as follows

ssm2300 1 is the cv for pan for voices 1-8

ssm2300 2 is for the vca envelope for voices 1-8

ssm2300 3 is for q for voices 1-8

ssm2300 4 is for filter envelope cv

they are feed by a latching circuit a 74hct273 this circuit controls the 
amount of cv data to each of the outputs by controlling the sample and hold 
circuits this is feed by data buss that feeds the dac

main data buss feeds the ad 7524 8 bit cv dac which goes to each of the 
ssm2300 com check this dac out put that you are getting cv voltage 0-5v

ic49 ad7524 cv dac has 2 outputs that go to an opamp ic41 tlo82 check 
voltages on this ic pin 8 is +10v

pin 4 is -12v

ic49 cvdac pin 3 is gnd use this pin for you gnd reference for testing the 
voltages also check pin 14 which is +5v

the output pin 1 on the ic41 tlo82 is the cv dac output to all the ssm2300 
sample and hold ic,s check the voltage it should be 0-5v

check the voltage on the ssm2300 pin 7 is -5v pin 8 is grnd ov and pin 16 is 
+10 volts

so there must be a -5v regulator feeding the sample and hold circuits 7905 
power regulator which is feed by the -12v psu line plus the should be a +10v 
regulator 7810 for the +10v this comes from the +12v psu supply line

also have you treid a filter and vca recalibration this uses the cvdac to 
calibrate all filters and vca so that all 8 voices are in sync
Show quoted textHide quoted text
----- Original Message ----- 
From: "Preslav Lefterov" <plefterov@...>
To: <emax@yahoogroups.com>
Sent: Saturday, February 06, 2010 1:35 AM
Subject: Re: [emax] Re: Emax Problem Diagnosis


> Thanks for your help. Here are the readings:
>
> OR/GR = 12.48V
> YE/GR =  5.0V
> PU/GR = 12.18 (if i measure with red probe on green wire and black probe 
> on
> the purple) or -12.18V (if I measure with the red probe on the purple and
> black probe on the green)
>
> The floppy drive works perfectly...it loads the OS and and 
> samples/presets.
>
> I appreciate your time.
>
> Preslav
>
> On Fri, Feb 5, 2010 at 7:17 PM, jammie <jammie.emma@...> 
> wrote:
>
>>
>>
>>
>> test each wire conection
>>
>> orange and green wires red probe on the orange black probe on the green 
>> for
>> +12v
>>
>> yellow and green wires red probe for yellow wire black probe on the green
>> wire for +5v
>>
>> purple and green wires red probe on the green wire black probe on the
>> purple wire for -12v
>>
>> test this for me and give me your readings
>>
>> does the floppy drive work as this is the 5v line
>>
>> the 5 v on the mother boards for other circuits gets its 5v from power
>> regulators of the +12v supply
>>
>> ----- Original Message -----
>> From: preslavl
>> To: emax@yahoogroups.com <emax%40yahoogroups.com>
>> Sent: Friday, February 05, 2010 9:37 PM
>> Subject: [emax] Re: Emax Problem Diagnosis
>>
>> So I tried testing the voltages at the connector that goes between the PS
>> board and the CPU Board. I tested on the PS side. If I follow the color
>> coding I read in a message on here somewhere: Yellow (+5V), Orange 
>> (+12V),
>> Purple (-12V), and Green (0V/Ground).
>>
>> I get nowhere near those voltages...now I might be doing this completely
>> wrong, but I get +12V at the Green wire, and 0v at the Yellow (where I
>> should be getting +5V). I also get +17V at the Orange wire...
>>
>> Again, I'm not sure if I'm testing at the correct points. By the way I'm
>> still getting sound out of the Emax so it has not exploded in my hands as 
>> of
>> yet.
>>
>> --- In emax@yahoogroups.com <emax%40yahoogroups.com>, "jammie"
>> <jammie.emma@...> wrote:
>> >
>> > right the cv (control voltages for the filter cutoff vca and resonance
>> are sent by the cv circuit ranging from 0v-5v
>> >
>> > which is sent by the cpu for control off the filter depending on 
>> > envelope
>> settings or external controllers
>> >
>> > now the ssm2300 are sample and hold circuits they send out the digital
>> info into analog voltages which are sampled then transmitted as a voltage 
>> in
>> the range of 0-5v 0v = 0 resonance 5v = full resonance
>> >
>> > or cut off or vca volume
>> >
>> > thats what the first 3 ssm2300 deal with
>> >
>> > the 4th ssm2300 deals with the digital signal comming from the dacs 
>> > this
>> is the samples that are transmitted from the ram to the dacs and to the
>> samplre and hold circuits which send out voltages 0-5v which corispond to
>> the digital sound into analog format
>> >
>> > now if you are getting sound out then the ssm2300 for that part of the
>> circuit is working it seems to be the cv circuit that you are having a
>> problem with not being sent into the ssm2300 to be made into the analog
>> control voltages
>> >
>> > ----- Original Message -----
>> > From: preslavl
>> > To: emax@yahoogroups.com <emax%40yahoogroups.com>
>> > Sent: Friday, February 05, 2010 7:18 PM
>> > Subject: [emax] Re: Emax Problem Diagnosis
>> >
>> >
>> >
>> > Let me make sure I understand you correctly:
>> >
>> > What you describe is one test: checking that the 2300s are getting the
>> correct voltage from the 5v supply? And I should be getting +/- 12V and
>> ground? Are there testpoints visible or is it pretty obvious where to 
>> test
>> it?
>> >
>> > Thanks for the quick reply
>> >
>> > --- In emax@yahoogroups.com <emax%40yahoogroups.com>, "jammie"
>> <jammie.emma@> wrote:
>> > >
>> > > check the 5 v supply as this is the control voltage of the filters
>> > >
>> > > the cv control gets sent to 1 of the 2300 for fc 1 for resonance 1 is
>> for the vca and thhe other is for the dacs for the 8 note polyphony each
>> octal sample and hold circuits for each of the functions
>> > >
>> > > check to see that you are getting the corect voltage for operation of
>> the 2300 or 4051 or smp08
>> > >
>> > > if i was to change them then i would upgrade them to the newer faster
>> slew rate the smp08 are the best and are from analog devices and are 
>> direct
>> replacements for the ssm2300 which are 4051 equivelents made by emu
>> > >
>> > > the smp08 they have a faster slew rate and have faster transient
>> response with less distortion
>> > >
>> > >
>> > > you should be getting 12vdc vdd and grnd
>> > >
>> > > ----- Original Message -----
>> > > From: preslavl
>> > > To: emax@yahoogroups.com <emax%40yahoogroups.com>
>> > > Sent: Friday, February 05, 2010 5:54 PM
>> > > Subject: [emax] Emax Problem Diagnosis
>> > >
>> > >
>> > >
>> > > Hello,
>> > >
>> > > I wanted to see if I can get some help diagnosing the problem(s) of 
>> > > an
>> Emax I i just purchased.
>> > >
>> > > Here are they symptoms:
>> > >
>> > > - No Frequency Cutoff - I calibrated the data slider and it registers
>> the frequency cutoff (FC) going up in numbers but you cannot hear any
>> change.
>> > >
>> > > - No Attack in the ADSR or the filter ADSR - cannot hear an increase 
>> > > in
>> attack even when the values increase.
>> > >
>> > > - No Volume - volume slider was calibrated and it seems to work but
>> moving it up or down does not make a difference...volume seems to be at
>> 100%.
>> > >
>> > > These are pretty much all the symptoms I've notices so far.
>> > >
>> > > Things I've covered so far:
>> > >
>> > > - I replaced the 4 SSM 2300 that were in the sampler - it did not 
>> > > seem
>> to make ANY difference. I replaced the original chips with ones marked:
>> "SSM2300 8652". I purchased these on eBAY. Could this be the issue?
>> > >
>> > > - I went through the recalibration procedure - no change.
>> > >
>> > > - I performed the diagnostic tests inside the Master menu (8, 8, 
>> > > YES).
>> ERAM and Bank RAM checked out OK and all other tests seemed to have 
>> passed.
>> > >
>> > > Any ideas anyone?
>> > >
>> > > Thank you,
>> > >
>> > > Preslav
>> > >
>> > >
>> > >
>> > >
>> > >
>> > >
>> > > ----------------------------------------------------------
>> > >
>> > >
>> > >
>> > > No virus found in this incoming message.
>> > > Checked by AVG - www.avg.com
>> > > Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date:
>> 02/05/10 07:35:00
>> > >
>> > >
>> > > [Non-text portions of this message have been removed]
>> > >
>> >
>> >
>> >
>> >
>> >
>> >
>> > ----------------------------------------------------------
>> >
>> >
>> >
>> > No virus found in this incoming message.
>> > Checked by AVG - www.avg.com
>> > Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date: 
>> > 02/05/10
>> 07:35:00
>> >
>> >
>> > [Non-text portions of this message have been removed]
>> >
>>
>> ----------------------------------------------------------
>>
>> No virus found in this incoming message.
>> Checked by AVG - www.avg.com
>> Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date: 02/05/10
>> 07:35:00
>>
>> [Non-text portions of this message have been removed]
>>
>>
>>
>
>
> [Non-text portions of this message have been removed]
>
>
>
> ------------------------------------
>
> Emax and Emax II User's Group Website
>
> http://www.silveriafamily.comYahoo! Groups Links
>
>
>


--------------------------------------------------------------------------------



No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date: 02/05/10 
07:35:00

Re: [emax] Re: Emax Problem Diagnosis

2010-02-06 by jammie

the -5v regulator is ic il327

the tip29 npn power transister does the 10v it is qq306 it is attached to 
t0-220 heatsink ze323
Show quoted textHide quoted text
----- Original Message ----- 
From: "Preslav Lefterov" <plefterov@...>
To: <emax@yahoogroups.com>
Sent: Saturday, February 06, 2010 1:35 AM
Subject: Re: [emax] Re: Emax Problem Diagnosis


> Thanks for your help. Here are the readings:
>
> OR/GR = 12.48V
> YE/GR =  5.0V
> PU/GR = 12.18 (if i measure with red probe on green wire and black probe 
> on
> the purple) or -12.18V (if I measure with the red probe on the purple and
> black probe on the green)
>
> The floppy drive works perfectly...it loads the OS and and 
> samples/presets.
>
> I appreciate your time.
>
> Preslav
>
> On Fri, Feb 5, 2010 at 7:17 PM, jammie <jammie.emma@...> 
> wrote:
>
>>
>>
>>
>> test each wire conection
>>
>> orange and green wires red probe on the orange black probe on the green 
>> for
>> +12v
>>
>> yellow and green wires red probe for yellow wire black probe on the green
>> wire for +5v
>>
>> purple and green wires red probe on the green wire black probe on the
>> purple wire for -12v
>>
>> test this for me and give me your readings
>>
>> does the floppy drive work as this is the 5v line
>>
>> the 5 v on the mother boards for other circuits gets its 5v from power
>> regulators of the +12v supply
>>
>> ----- Original Message -----
>> From: preslavl
>> To: emax@yahoogroups.com <emax%40yahoogroups.com>
>> Sent: Friday, February 05, 2010 9:37 PM
>> Subject: [emax] Re: Emax Problem Diagnosis
>>
>> So I tried testing the voltages at the connector that goes between the PS
>> board and the CPU Board. I tested on the PS side. If I follow the color
>> coding I read in a message on here somewhere: Yellow (+5V), Orange 
>> (+12V),
>> Purple (-12V), and Green (0V/Ground).
>>
>> I get nowhere near those voltages...now I might be doing this completely
>> wrong, but I get +12V at the Green wire, and 0v at the Yellow (where I
>> should be getting +5V). I also get +17V at the Orange wire...
>>
>> Again, I'm not sure if I'm testing at the correct points. By the way I'm
>> still getting sound out of the Emax so it has not exploded in my hands as 
>> of
>> yet.
>>
>> --- In emax@yahoogroups.com <emax%40yahoogroups.com>, "jammie"
>> <jammie.emma@...> wrote:
>> >
>> > right the cv (control voltages for the filter cutoff vca and resonance
>> are sent by the cv circuit ranging from 0v-5v
>> >
>> > which is sent by the cpu for control off the filter depending on 
>> > envelope
>> settings or external controllers
>> >
>> > now the ssm2300 are sample and hold circuits they send out the digital
>> info into analog voltages which are sampled then transmitted as a voltage 
>> in
>> the range of 0-5v 0v = 0 resonance 5v = full resonance
>> >
>> > or cut off or vca volume
>> >
>> > thats what the first 3 ssm2300 deal with
>> >
>> > the 4th ssm2300 deals with the digital signal comming from the dacs 
>> > this
>> is the samples that are transmitted from the ram to the dacs and to the
>> samplre and hold circuits which send out voltages 0-5v which corispond to
>> the digital sound into analog format
>> >
>> > now if you are getting sound out then the ssm2300 for that part of the
>> circuit is working it seems to be the cv circuit that you are having a
>> problem with not being sent into the ssm2300 to be made into the analog
>> control voltages
>> >
>> > ----- Original Message -----
>> > From: preslavl
>> > To: emax@yahoogroups.com <emax%40yahoogroups.com>
>> > Sent: Friday, February 05, 2010 7:18 PM
>> > Subject: [emax] Re: Emax Problem Diagnosis
>> >
>> >
>> >
>> > Let me make sure I understand you correctly:
>> >
>> > What you describe is one test: checking that the 2300s are getting the
>> correct voltage from the 5v supply? And I should be getting +/- 12V and
>> ground? Are there testpoints visible or is it pretty obvious where to 
>> test
>> it?
>> >
>> > Thanks for the quick reply
>> >
>> > --- In emax@yahoogroups.com <emax%40yahoogroups.com>, "jammie"
>> <jammie.emma@> wrote:
>> > >
>> > > check the 5 v supply as this is the control voltage of the filters
>> > >
>> > > the cv control gets sent to 1 of the 2300 for fc 1 for resonance 1 is
>> for the vca and thhe other is for the dacs for the 8 note polyphony each
>> octal sample and hold circuits for each of the functions
>> > >
>> > > check to see that you are getting the corect voltage for operation of
>> the 2300 or 4051 or smp08
>> > >
>> > > if i was to change them then i would upgrade them to the newer faster
>> slew rate the smp08 are the best and are from analog devices and are 
>> direct
>> replacements for the ssm2300 which are 4051 equivelents made by emu
>> > >
>> > > the smp08 they have a faster slew rate and have faster transient
>> response with less distortion
>> > >
>> > >
>> > > you should be getting 12vdc vdd and grnd
>> > >
>> > > ----- Original Message -----
>> > > From: preslavl
>> > > To: emax@yahoogroups.com <emax%40yahoogroups.com>
>> > > Sent: Friday, February 05, 2010 5:54 PM
>> > > Subject: [emax] Emax Problem Diagnosis
>> > >
>> > >
>> > >
>> > > Hello,
>> > >
>> > > I wanted to see if I can get some help diagnosing the problem(s) of 
>> > > an
>> Emax I i just purchased.
>> > >
>> > > Here are they symptoms:
>> > >
>> > > - No Frequency Cutoff - I calibrated the data slider and it registers
>> the frequency cutoff (FC) going up in numbers but you cannot hear any
>> change.
>> > >
>> > > - No Attack in the ADSR or the filter ADSR - cannot hear an increase 
>> > > in
>> attack even when the values increase.
>> > >
>> > > - No Volume - volume slider was calibrated and it seems to work but
>> moving it up or down does not make a difference...volume seems to be at
>> 100%.
>> > >
>> > > These are pretty much all the symptoms I've notices so far.
>> > >
>> > > Things I've covered so far:
>> > >
>> > > - I replaced the 4 SSM 2300 that were in the sampler - it did not 
>> > > seem
>> to make ANY difference. I replaced the original chips with ones marked:
>> "SSM2300 8652". I purchased these on eBAY. Could this be the issue?
>> > >
>> > > - I went through the recalibration procedure - no change.
>> > >
>> > > - I performed the diagnostic tests inside the Master menu (8, 8, 
>> > > YES).
>> ERAM and Bank RAM checked out OK and all other tests seemed to have 
>> passed.
>> > >
>> > > Any ideas anyone?
>> > >
>> > > Thank you,
>> > >
>> > > Preslav
>> > >
>> > >
>> > >
>> > >
>> > >
>> > >
>> > > ----------------------------------------------------------
>> > >
>> > >
>> > >
>> > > No virus found in this incoming message.
>> > > Checked by AVG - www.avg.com
>> > > Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date:
>> 02/05/10 07:35:00
>> > >
>> > >
>> > > [Non-text portions of this message have been removed]
>> > >
>> >
>> >
>> >
>> >
>> >
>> >
>> > ----------------------------------------------------------
>> >
>> >
>> >
>> > No virus found in this incoming message.
>> > Checked by AVG - www.avg.com
>> > Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date: 
>> > 02/05/10
>> 07:35:00
>> >
>> >
>> > [Non-text portions of this message have been removed]
>> >
>>
>> ----------------------------------------------------------
>>
>> No virus found in this incoming message.
>> Checked by AVG - www.avg.com
>> Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date: 02/05/10
>> 07:35:00
>>
>> [Non-text portions of this message have been removed]
>>
>>
>>
>
>
> [Non-text portions of this message have been removed]
>
>
>
> ------------------------------------
>
> Emax and Emax II User's Group Website
>
> http://www.silveriafamily.comYahoo! Groups Links
>
>
>


--------------------------------------------------------------------------------



No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date: 02/05/10 
07:35:00

Re: [emax] Re: Emax Problem Diagnosis

2010-02-06 by Preslav Lefterov

Jammie,

Ok let me run through this stuff and make sure I understand correctly (I
should be able to do all the tests later today or tomorrow):

1. SSM2300s are fed by the *74HCT273* latching circuit. Is this the name of
the actual circuit as per the schematics or is it a specific IC or other
component?


2. I need to check the following pins on *IC49 (AD7524): *
*
----> pin 8 should be +10V
-----> pin 4 should be -12V
-----> pin 3 is GROUND
-----> pin 14 should be +5V

3. I need to check the following pins on IC41 (tlo82):
-----> pin 1 should be 0-5V (this is the output to all SSM2300s)

Which pin on IC41(tlo82) is GROUND?

4. I need to check the voltages on these pins on all SSM2300s:

----> pin 7 should be -5V
----> pin 8 is GROUND
----> pin 16 should be +10V

5. ICil327 is the -5V regulator, so if I am nto getting this voltage to the
SSM2300s I can try replacing this?

6. Transistor TIP29 / QQ306 is the +10V regulator. It is attached to a
heatsink ZE323. If I am not getting +10V I can try replacing this
transistor?


Just wanted to summarize your instructions. I will check all this stuff as
soon as I get to the studio (there is a snowstorm here and my car is stuck
currently).


Thank you for guiding me through this again.


Preslav



*

On Sat, Feb 6, 2010 at 10:26 AM, jammie <jammie.emma@...>wrote:

>
>
> the -5v regulator is ic il327
>
> the tip29 npn power transister does the 10v it is qq306 it is attached to
> t0-220 heatsink ze323
>
> ----- Original Message -----
> From: "Preslav Lefterov" <plefterov@... <plefterov%40gmail.com>>
> To: <emax@yahoogroups.com <emax%40yahoogroups.com>>
> Sent: Saturday, February 06, 2010 1:35 AM
> Subject: Re: [emax] Re: Emax Problem Diagnosis
>
> > Thanks for your help. Here are the readings:
> >
> > OR/GR = 12.48V
> > YE/GR = 5.0V
> > PU/GR = 12.18 (if i measure with red probe on green wire and black probe
> > on
> > the purple) or -12.18V (if I measure with the red probe on the purple and
> > black probe on the green)
> >
> > The floppy drive works perfectly...it loads the OS and and
> > samples/presets.
> >
> > I appreciate your time.
> >
> > Preslav
> >
> > On Fri, Feb 5, 2010 at 7:17 PM, jammie <jammie.emma@...<jammie.emma%40blueyonder.co.uk>>
>
> > wrote:
> >
> >>
> >>
> >>
> >> test each wire conection
> >>
> >> orange and green wires red probe on the orange black probe on the green
> >> for
> >> +12v
> >>
> >> yellow and green wires red probe for yellow wire black probe on the
> green
> >> wire for +5v
> >>
> >> purple and green wires red probe on the green wire black probe on the
> >> purple wire for -12v
> >>
> >> test this for me and give me your readings
> >>
> >> does the floppy drive work as this is the 5v line
> >>
> >> the 5 v on the mother boards for other circuits gets its 5v from power
> >> regulators of the +12v supply
> >>
> >> ----- Original Message -----
> >> From: preslavl
> >> To: emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com>
> >> Sent: Friday, February 05, 2010 9:37 PM
> >> Subject: [emax] Re: Emax Problem Diagnosis
> >>
> >> So I tried testing the voltages at the connector that goes between the
> PS
> >> board and the CPU Board. I tested on the PS side. If I follow the color
> >> coding I read in a message on here somewhere: Yellow (+5V), Orange
> >> (+12V),
> >> Purple (-12V), and Green (0V/Ground).
> >>
> >> I get nowhere near those voltages...now I might be doing this completely
> >> wrong, but I get +12V at the Green wire, and 0v at the Yellow (where I
> >> should be getting +5V). I also get +17V at the Orange wire...
> >>
> >> Again, I'm not sure if I'm testing at the correct points. By the way I'm
> >> still getting sound out of the Emax so it has not exploded in my hands
> as
> >> of
> >> yet.
> >>
> >> --- In emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com>, "jammie"
>
> >> <jammie.emma@...> wrote:
> >> >
> >> > right the cv (control voltages for the filter cutoff vca and resonance
> >> are sent by the cv circuit ranging from 0v-5v
> >> >
> >> > which is sent by the cpu for control off the filter depending on
> >> > envelope
> >> settings or external controllers
> >> >
> >> > now the ssm2300 are sample and hold circuits they send out the digital
> >> info into analog voltages which are sampled then transmitted as a
> voltage
> >> in
> >> the range of 0-5v 0v = 0 resonance 5v = full resonance
> >> >
> >> > or cut off or vca volume
> >> >
> >> > thats what the first 3 ssm2300 deal with
> >> >
> >> > the 4th ssm2300 deals with the digital signal comming from the dacs
> >> > this
> >> is the samples that are transmitted from the ram to the dacs and to the
> >> samplre and hold circuits which send out voltages 0-5v which corispond
> to
> >> the digital sound into analog format
> >> >
> >> > now if you are getting sound out then the ssm2300 for that part of the
> >> circuit is working it seems to be the cv circuit that you are having a
> >> problem with not being sent into the ssm2300 to be made into the analog
> >> control voltages
> >> >
> >> > ----- Original Message -----
> >> > From: preslavl
> >> > To: emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com>
> >> > Sent: Friday, February 05, 2010 7:18 PM
> >> > Subject: [emax] Re: Emax Problem Diagnosis
> >> >
> >> >
> >> >
> >> > Let me make sure I understand you correctly:
> >> >
> >> > What you describe is one test: checking that the 2300s are getting the
> >> correct voltage from the 5v supply? And I should be getting +/- 12V and
> >> ground? Are there testpoints visible or is it pretty obvious where to
> >> test
> >> it?
> >> >
> >> > Thanks for the quick reply
> >> >
> >> > --- In emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com>, "jammie"
>
> >> <jammie.emma@> wrote:
> >> > >
> >> > > check the 5 v supply as this is the control voltage of the filters
> >> > >
> >> > > the cv control gets sent to 1 of the 2300 for fc 1 for resonance 1
> is
> >> for the vca and thhe other is for the dacs for the 8 note polyphony each
> >> octal sample and hold circuits for each of the functions
> >> > >
> >> > > check to see that you are getting the corect voltage for operation
> of
> >> the 2300 or 4051 or smp08
> >> > >
> >> > > if i was to change them then i would upgrade them to the newer
> faster
> >> slew rate the smp08 are the best and are from analog devices and are
> >> direct
> >> replacements for the ssm2300 which are 4051 equivelents made by emu
> >> > >
> >> > > the smp08 they have a faster slew rate and have faster transient
> >> response with less distortion
> >> > >
> >> > >
> >> > > you should be getting 12vdc vdd and grnd
> >> > >
> >> > > ----- Original Message -----
> >> > > From: preslavl
> >> > > To: emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com>
> >> > > Sent: Friday, February 05, 2010 5:54 PM
> >> > > Subject: [emax] Emax Problem Diagnosis
> >> > >
> >> > >
> >> > >
> >> > > Hello,
> >> > >
> >> > > I wanted to see if I can get some help diagnosing the problem(s) of
> >> > > an
> >> Emax I i just purchased.
> >> > >
> >> > > Here are they symptoms:
> >> > >
> >> > > - No Frequency Cutoff - I calibrated the data slider and it
> registers
> >> the frequency cutoff (FC) going up in numbers but you cannot hear any
> >> change.
> >> > >
> >> > > - No Attack in the ADSR or the filter ADSR - cannot hear an increase
>
> >> > > in
> >> attack even when the values increase.
> >> > >
> >> > > - No Volume - volume slider was calibrated and it seems to work but
> >> moving it up or down does not make a difference...volume seems to be at
> >> 100%.
> >> > >
> >> > > These are pretty much all the symptoms I've notices so far.
> >> > >
> >> > > Things I've covered so far:
> >> > >
> >> > > - I replaced the 4 SSM 2300 that were in the sampler - it did not
> >> > > seem
> >> to make ANY difference. I replaced the original chips with ones marked:
> >> "SSM2300 8652". I purchased these on eBAY. Could this be the issue?
> >> > >
> >> > > - I went through the recalibration procedure - no change.
> >> > >
> >> > > - I performed the diagnostic tests inside the Master menu (8, 8,
> >> > > YES).
> >> ERAM and Bank RAM checked out OK and all other tests seemed to have
> >> passed.
> >> > >
> >> > > Any ideas anyone?
> >> > >
> >> > > Thank you,
> >> > >
> >> > > Preslav
> >> > >
> >> > >
> >> > >
> >> > >
> >> > >
> >> > >
> >> > > ----------------------------------------------------------
> >> > >
> >> > >
> >> > >
> >> > > No virus found in this incoming message.
> >> > > Checked by AVG - www.avg.com
> >> > > Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date:
> >> 02/05/10 07:35:00
> >> > >
> >> > >
> >> > > [Non-text portions of this message have been removed]
> >> > >
> >> >
> >> >
> >> >
> >> >
> >> >
> >> >
> >> > ----------------------------------------------------------
> >> >
> >> >
> >> >
> >> > No virus found in this incoming message.
> >> > Checked by AVG - www.avg.com
> >> > Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date:
> >> > 02/05/10
> >> 07:35:00
> >> >
> >> >
> >> > [Non-text portions of this message have been removed]
> >> >
> >>
> >> ----------------------------------------------------------
> >>
> >> No virus found in this incoming message.
> >> Checked by AVG - www.avg.com
> >> Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date: 02/05/10
> >> 07:35:00
> >>
> >> [Non-text portions of this message have been removed]
> >>
> >>
> >>
> >
> >
> > [Non-text portions of this message have been removed]
> >
> >
> >
> > ------------------------------------
> >
> > Emax and Emax II User's Group Website
> >
> > http://www.silveriafamily.comYahoo! Groups Links
>
> >
> >
> >
>
> ----------------------------------------------------------
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date: 02/05/10
> 07:35:00
>
>  
>


[Non-text portions of this message have been removed]

Re: [emax] Re: Emax Problem Diagnosis

2010-02-06 by jammie

no pins 8 +10v
pins 4 -12v  are of off the tl082 ic41

pin 3 gnd
pin 14 +5v are from the ic49 ad7524

i said use pin 3 ground as your reference ground for testing the pins on the 
tl082

pin 3 on the ssm2300 is the cv voltage check this to see if you are getting 
the cv 0-5v

the rest of the pins  for the ssm2300 are correct
Show quoted textHide quoted text
----- Original Message ----- 
From: "Preslav Lefterov" <plefterov@...>
To: <emax@yahoogroups.com>
Sent: Saturday, February 06, 2010 8:14 PM
Subject: Re: [emax] Re: Emax Problem Diagnosis


> Jammie,
>
> Ok let me run through this stuff and make sure I understand correctly (I
> should be able to do all the tests later today or tomorrow):
>
> 1. SSM2300s are fed by the *74HCT273* latching circuit. Is this the name 
> of
> the actual circuit as per the schematics or is it a specific IC or other
> component?
>
>
> 2. I need to check the following pins on *IC49 (AD7524): *
> *
> ----> pin 8 should be +10V
> -----> pin 4 should be -12V
> -----> pin 3 is GROUND
> -----> pin 14 should be +5V
>
> 3. I need to check the following pins on IC41 (tlo82):
> -----> pin 1 should be 0-5V (this is the output to all SSM2300s)
>
> Which pin on IC41(tlo82) is GROUND?
>
> 4. I need to check the voltages on these pins on all SSM2300s:
>
> ----> pin 7 should be -5V
> ----> pin 8 is GROUND
> ----> pin 16 should be +10V
>
> 5. ICil327 is the -5V regulator, so if I am nto getting this voltage to 
> the
> SSM2300s I can try replacing this?
>
> 6. Transistor TIP29 / QQ306 is the +10V regulator. It is attached to a
> heatsink ZE323. If I am not getting +10V I can try replacing this
> transistor?
>
>
> Just wanted to summarize your instructions. I will check all this stuff as
> soon as I get to the studio (there is a snowstorm here and my car is stuck
> currently).
>
>
> Thank you for guiding me through this again.
>
>
> Preslav
>
>
>
> *
>
> On Sat, Feb 6, 2010 at 10:26 AM, jammie 
> <jammie.emma@...>wrote:
>
>>
>>
>> the -5v regulator is ic il327
>>
>> the tip29 npn power transister does the 10v it is qq306 it is attached to
>> t0-220 heatsink ze323
>>
>> ----- Original Message -----
>> From: "Preslav Lefterov" <plefterov@... <plefterov%40gmail.com>>
>> To: <emax@yahoogroups.com <emax%40yahoogroups.com>>
>> Sent: Saturday, February 06, 2010 1:35 AM
>> Subject: Re: [emax] Re: Emax Problem Diagnosis
>>
>> > Thanks for your help. Here are the readings:
>> >
>> > OR/GR = 12.48V
>> > YE/GR = 5.0V
>> > PU/GR = 12.18 (if i measure with red probe on green wire and black 
>> > probe
>> > on
>> > the purple) or -12.18V (if I measure with the red probe on the purple 
>> > and
>> > black probe on the green)
>> >
>> > The floppy drive works perfectly...it loads the OS and and
>> > samples/presets.
>> >
>> > I appreciate your time.
>> >
>> > Preslav
>> >
>> > On Fri, Feb 5, 2010 at 7:17 PM, jammie 
>> > <jammie.emma@...<jammie.emma%40blueyonder.co.uk>>
>>
>> > wrote:
>> >
>> >>
>> >>
>> >>
>> >> test each wire conection
>> >>
>> >> orange and green wires red probe on the orange black probe on the 
>> >> green
>> >> for
>> >> +12v
>> >>
>> >> yellow and green wires red probe for yellow wire black probe on the
>> green
>> >> wire for +5v
>> >>
>> >> purple and green wires red probe on the green wire black probe on the
>> >> purple wire for -12v
>> >>
>> >> test this for me and give me your readings
>> >>
>> >> does the floppy drive work as this is the 5v line
>> >>
>> >> the 5 v on the mother boards for other circuits gets its 5v from power
>> >> regulators of the +12v supply
>> >>
>> >> ----- Original Message -----
>> >> From: preslavl
>> >> To: emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>> 40yahoogroups.com>
>> >> Sent: Friday, February 05, 2010 9:37 PM
>> >> Subject: [emax] Re: Emax Problem Diagnosis
>> >>
>> >> So I tried testing the voltages at the connector that goes between the
>> PS
>> >> board and the CPU Board. I tested on the PS side. If I follow the 
>> >> color
>> >> coding I read in a message on here somewhere: Yellow (+5V), Orange
>> >> (+12V),
>> >> Purple (-12V), and Green (0V/Ground).
>> >>
>> >> I get nowhere near those voltages...now I might be doing this 
>> >> completely
>> >> wrong, but I get +12V at the Green wire, and 0v at the Yellow (where I
>> >> should be getting +5V). I also get +17V at the Orange wire...
>> >>
>> >> Again, I'm not sure if I'm testing at the correct points. By the way 
>> >> I'm
>> >> still getting sound out of the Emax so it has not exploded in my hands
>> as
>> >> of
>> >> yet.
>> >>
>> >> --- In emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>> 40yahoogroups.com>, "jammie"
>>
>> >> <jammie.emma@...> wrote:
>> >> >
>> >> > right the cv (control voltages for the filter cutoff vca and 
>> >> > resonance
>> >> are sent by the cv circuit ranging from 0v-5v
>> >> >
>> >> > which is sent by the cpu for control off the filter depending on
>> >> > envelope
>> >> settings or external controllers
>> >> >
>> >> > now the ssm2300 are sample and hold circuits they send out the 
>> >> > digital
>> >> info into analog voltages which are sampled then transmitted as a
>> voltage
>> >> in
>> >> the range of 0-5v 0v = 0 resonance 5v = full resonance
>> >> >
>> >> > or cut off or vca volume
>> >> >
>> >> > thats what the first 3 ssm2300 deal with
>> >> >
>> >> > the 4th ssm2300 deals with the digital signal comming from the dacs
>> >> > this
>> >> is the samples that are transmitted from the ram to the dacs and to 
>> >> the
>> >> samplre and hold circuits which send out voltages 0-5v which corispond
>> to
>> >> the digital sound into analog format
>> >> >
>> >> > now if you are getting sound out then the ssm2300 for that part of 
>> >> > the
>> >> circuit is working it seems to be the cv circuit that you are having a
>> >> problem with not being sent into the ssm2300 to be made into the 
>> >> analog
>> >> control voltages
>> >> >
>> >> > ----- Original Message -----
>> >> > From: preslavl
>> >> > To: emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>> 40yahoogroups.com>
>> >> > Sent: Friday, February 05, 2010 7:18 PM
>> >> > Subject: [emax] Re: Emax Problem Diagnosis
>> >> >
>> >> >
>> >> >
>> >> > Let me make sure I understand you correctly:
>> >> >
>> >> > What you describe is one test: checking that the 2300s are getting 
>> >> > the
>> >> correct voltage from the 5v supply? And I should be getting +/- 12V 
>> >> and
>> >> ground? Are there testpoints visible or is it pretty obvious where to
>> >> test
>> >> it?
>> >> >
>> >> > Thanks for the quick reply
>> >> >
>> >> > --- In emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>> 40yahoogroups.com>, "jammie"
>>
>> >> <jammie.emma@> wrote:
>> >> > >
>> >> > > check the 5 v supply as this is the control voltage of the filters
>> >> > >
>> >> > > the cv control gets sent to 1 of the 2300 for fc 1 for resonance 1
>> is
>> >> for the vca and thhe other is for the dacs for the 8 note polyphony 
>> >> each
>> >> octal sample and hold circuits for each of the functions
>> >> > >
>> >> > > check to see that you are getting the corect voltage for operation
>> of
>> >> the 2300 or 4051 or smp08
>> >> > >
>> >> > > if i was to change them then i would upgrade them to the newer
>> faster
>> >> slew rate the smp08 are the best and are from analog devices and are
>> >> direct
>> >> replacements for the ssm2300 which are 4051 equivelents made by emu
>> >> > >
>> >> > > the smp08 they have a faster slew rate and have faster transient
>> >> response with less distortion
>> >> > >
>> >> > >
>> >> > > you should be getting 12vdc vdd and grnd
>> >> > >
>> >> > > ----- Original Message -----
>> >> > > From: preslavl
>> >> > > To: emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>> 40yahoogroups.com>
>> >> > > Sent: Friday, February 05, 2010 5:54 PM
>> >> > > Subject: [emax] Emax Problem Diagnosis
>> >> > >
>> >> > >
>> >> > >
>> >> > > Hello,
>> >> > >
>> >> > > I wanted to see if I can get some help diagnosing the problem(s) 
>> >> > > of
>> >> > > an
>> >> Emax I i just purchased.
>> >> > >
>> >> > > Here are they symptoms:
>> >> > >
>> >> > > - No Frequency Cutoff - I calibrated the data slider and it
>> registers
>> >> the frequency cutoff (FC) going up in numbers but you cannot hear any
>> >> change.
>> >> > >
>> >> > > - No Attack in the ADSR or the filter ADSR - cannot hear an 
>> >> > > increase
>>
>> >> > > in
>> >> attack even when the values increase.
>> >> > >
>> >> > > - No Volume - volume slider was calibrated and it seems to work 
>> >> > > but
>> >> moving it up or down does not make a difference...volume seems to be 
>> >> at
>> >> 100%.
>> >> > >
>> >> > > These are pretty much all the symptoms I've notices so far.
>> >> > >
>> >> > > Things I've covered so far:
>> >> > >
>> >> > > - I replaced the 4 SSM 2300 that were in the sampler - it did not
>> >> > > seem
>> >> to make ANY difference. I replaced the original chips with ones 
>> >> marked:
>> >> "SSM2300 8652". I purchased these on eBAY. Could this be the issue?
>> >> > >
>> >> > > - I went through the recalibration procedure - no change.
>> >> > >
>> >> > > - I performed the diagnostic tests inside the Master menu (8, 8,
>> >> > > YES).
>> >> ERAM and Bank RAM checked out OK and all other tests seemed to have
>> >> passed.
>> >> > >
>> >> > > Any ideas anyone?
>> >> > >
>> >> > > Thank you,
>> >> > >
>> >> > > Preslav
>> >> > >
>> >> > >
>> >> > >
>> >> > >
>> >> > >
>> >> > >
>> >> > > ----------------------------------------------------------
>> >> > >
>> >> > >
>> >> > >
>> >> > > No virus found in this incoming message.
>> >> > > Checked by AVG - www.avg.com
>> >> > > Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date:
>> >> 02/05/10 07:35:00
>> >> > >
>> >> > >
>> >> > > [Non-text portions of this message have been removed]
>> >> > >
>> >> >
>> >> >
>> >> >
>> >> >
>> >> >
>> >> >
>> >> > ----------------------------------------------------------
>> >> >
>> >> >
>> >> >
>> >> > No virus found in this incoming message.
>> >> > Checked by AVG - www.avg.com
>> >> > Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date:
>> >> > 02/05/10
>> >> 07:35:00
>> >> >
>> >> >
>> >> > [Non-text portions of this message have been removed]
>> >> >
>> >>
>> >> ----------------------------------------------------------
>> >>
>> >> No virus found in this incoming message.
>> >> Checked by AVG - www.avg.com
>> >> Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date: 
>> >> 02/05/10
>> >> 07:35:00
>> >>
>> >> [Non-text portions of this message have been removed]
>> >>
>> >>
>> >>
>> >
>> >
>> > [Non-text portions of this message have been removed]
>> >
>> >
>> >
>> > ------------------------------------
>> >
>> > Emax and Emax II User's Group Website
>> >
>> > http://www.silveriafamily.comYahoo! Groups Links
>>
>> >
>> >
>> >
>>
>> ----------------------------------------------------------
>>
>> No virus found in this incoming message.
>> Checked by AVG - www.avg.com
>> Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date: 02/05/10
>> 07:35:00
>>
>>
>>
>
>
> [Non-text portions of this message have been removed]
>
>
>
> ------------------------------------
>
> Emax and Emax II User's Group Website
>
> http://www.silveriafamily.comYahoo! Groups Links
>
>
>


--------------------------------------------------------------------------------



No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 8.5.435 / Virus Database: 271.1.1/2671 - Release Date: 02/06/10 
07:35:00

Re: [emax] Re: Emax Problem Diagnosis

2010-02-08 by Preslav Lefterov

Jammie,

Sorry for the delay. Got the readings:

*IC41: *

I have +10V on pin8, and -12V on pin4.

*IC49:*

I have +5V on pin 14

*SSM2300s:*

On all 4 I consistently have the following readings:

pin 7 = -4.87V, pin 16 = +10.0V, pin 3 = 0.00V


Any other ideas? You mentioned I should be getting 0-5V on pin 3 from the CV
voltage on all ssm2300s...how can I test that the voltage goes up to 5v
since now it stays at 0.00v?


Thanks,

Preslav




On Sat, Feb 6, 2010 at 4:04 PM, jammie <jammie.emma@...> wrote:

>
>
> no pins 8 +10v
> pins 4 -12v are of off the tl082 ic41
>
> pin 3 gnd
> pin 14 +5v are from the ic49 ad7524
>
> i said use pin 3 ground as your reference ground for testing the pins on
> the
> tl082
>
> pin 3 on the ssm2300 is the cv voltage check this to see if you are getting
>
> the cv 0-5v
>
> the rest of the pins for the ssm2300 are correct
>
> ----- Original Message -----
> From: "Preslav Lefterov" <plefterov@... <plefterov%40gmail.com>>
> To: <emax@yahoogroups.com <emax%40yahoogroups.com>>
> Sent: Saturday, February 06, 2010 8:14 PM
> Subject: Re: [emax] Re: Emax Problem Diagnosis
>
> > Jammie,
> >
> > Ok let me run through this stuff and make sure I understand correctly (I
> > should be able to do all the tests later today or tomorrow):
> >
> > 1. SSM2300s are fed by the *74HCT273* latching circuit. Is this the name
> > of
> > the actual circuit as per the schematics or is it a specific IC or other
> > component?
> >
> >
> > 2. I need to check the following pins on *IC49 (AD7524): *
> > *
> > ----> pin 8 should be +10V
> > -----> pin 4 should be -12V
> > -----> pin 3 is GROUND
> > -----> pin 14 should be +5V
> >
> > 3. I need to check the following pins on IC41 (tlo82):
> > -----> pin 1 should be 0-5V (this is the output to all SSM2300s)
> >
> > Which pin on IC41(tlo82) is GROUND?
> >
> > 4. I need to check the voltages on these pins on all SSM2300s:
> >
> > ----> pin 7 should be -5V
> > ----> pin 8 is GROUND
> > ----> pin 16 should be +10V
> >
> > 5. ICil327 is the -5V regulator, so if I am nto getting this voltage to
> > the
> > SSM2300s I can try replacing this?
> >
> > 6. Transistor TIP29 / QQ306 is the +10V regulator. It is attached to a
> > heatsink ZE323. If I am not getting +10V I can try replacing this
> > transistor?
> >
> >
> > Just wanted to summarize your instructions. I will check all this stuff
> as
> > soon as I get to the studio (there is a snowstorm here and my car is
> stuck
> > currently).
> >
> >
> > Thank you for guiding me through this again.
> >
> >
> > Preslav
> >
> >
> >
> > *
> >
> > On Sat, Feb 6, 2010 at 10:26 AM, jammie
> > <jammie.emma@... <jammie.emma%40blueyonder.co.uk>>wrote:
> >
> >>
> >>
> >> the -5v regulator is ic il327
> >>
> >> the tip29 npn power transister does the 10v it is qq306 it is attached
> to
> >> t0-220 heatsink ze323
> >>
> >> ----- Original Message -----
> >> From: "Preslav Lefterov" <plefterov@... <plefterov%40gmail.com><plefterov%
> 40gmail.com>>
> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com>>
> >> Sent: Saturday, February 06, 2010 1:35 AM
> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
> >>
> >> > Thanks for your help. Here are the readings:
> >> >
> >> > OR/GR = 12.48V
> >> > YE/GR = 5.0V
> >> > PU/GR = 12.18 (if i measure with red probe on green wire and black
> >> > probe
> >> > on
> >> > the purple) or -12.18V (if I measure with the red probe on the purple
> >> > and
> >> > black probe on the green)
> >> >
> >> > The floppy drive works perfectly...it loads the OS and and
> >> > samples/presets.
> >> >
> >> > I appreciate your time.
> >> >
> >> > Preslav
> >> >
> >> > On Fri, Feb 5, 2010 at 7:17 PM, jammie
> >> > <jammie.emma@... <jammie.emma%40blueyonder.co.uk>
> <jammie.emma%40blueyonder.co.uk>>
>
> >>
> >> > wrote:
> >> >
> >> >>
> >> >>
> >> >>
> >> >> test each wire conection
> >> >>
> >> >> orange and green wires red probe on the orange black probe on the
> >> >> green
> >> >> for
> >> >> +12v
> >> >>
> >> >> yellow and green wires red probe for yellow wire black probe on the
> >> green
> >> >> wire for +5v
> >> >>
> >> >> purple and green wires red probe on the green wire black probe on the
> >> >> purple wire for -12v
> >> >>
> >> >> test this for me and give me your readings
> >> >>
> >> >> does the floppy drive work as this is the 5v line
> >> >>
> >> >> the 5 v on the mother boards for other circuits gets its 5v from
> power
> >> >> regulators of the +12v supply
> >> >>
> >> >> ----- Original Message -----
> >> >> From: preslavl
> >> >> To: emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com> <emax%
> >> 40yahoogroups.com>
> >> >> Sent: Friday, February 05, 2010 9:37 PM
> >> >> Subject: [emax] Re: Emax Problem Diagnosis
> >> >>
> >> >> So I tried testing the voltages at the connector that goes between
> the
> >> PS
> >> >> board and the CPU Board. I tested on the PS side. If I follow the
> >> >> color
> >> >> coding I read in a message on here somewhere: Yellow (+5V), Orange
> >> >> (+12V),
> >> >> Purple (-12V), and Green (0V/Ground).
> >> >>
> >> >> I get nowhere near those voltages...now I might be doing this
> >> >> completely
> >> >> wrong, but I get +12V at the Green wire, and 0v at the Yellow (where
> I
> >> >> should be getting +5V). I also get +17V at the Orange wire...
> >> >>
> >> >> Again, I'm not sure if I'm testing at the correct points. By the way
> >> >> I'm
> >> >> still getting sound out of the Emax so it has not exploded in my
> hands
> >> as
> >> >> of
> >> >> yet.
> >> >>
> >> >> --- In emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com> <emax%
>
> >> 40yahoogroups.com>, "jammie"
> >>
> >> >> <jammie.emma@...> wrote:
> >> >> >
> >> >> > right the cv (control voltages for the filter cutoff vca and
> >> >> > resonance
> >> >> are sent by the cv circuit ranging from 0v-5v
> >> >> >
> >> >> > which is sent by the cpu for control off the filter depending on
> >> >> > envelope
> >> >> settings or external controllers
> >> >> >
> >> >> > now the ssm2300 are sample and hold circuits they send out the
> >> >> > digital
> >> >> info into analog voltages which are sampled then transmitted as a
> >> voltage
> >> >> in
> >> >> the range of 0-5v 0v = 0 resonance 5v = full resonance
> >> >> >
> >> >> > or cut off or vca volume
> >> >> >
> >> >> > thats what the first 3 ssm2300 deal with
> >> >> >
> >> >> > the 4th ssm2300 deals with the digital signal comming from the dacs
> >> >> > this
> >> >> is the samples that are transmitted from the ram to the dacs and to
> >> >> the
> >> >> samplre and hold circuits which send out voltages 0-5v which
> corispond
> >> to
> >> >> the digital sound into analog format
> >> >> >
> >> >> > now if you are getting sound out then the ssm2300 for that part of
> >> >> > the
> >> >> circuit is working it seems to be the cv circuit that you are having
> a
> >> >> problem with not being sent into the ssm2300 to be made into the
> >> >> analog
> >> >> control voltages
> >> >> >
> >> >> > ----- Original Message -----
> >> >> > From: preslavl
> >> >> > To: emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com> <emax%
> >> 40yahoogroups.com>
> >> >> > Sent: Friday, February 05, 2010 7:18 PM
> >> >> > Subject: [emax] Re: Emax Problem Diagnosis
> >> >> >
> >> >> >
> >> >> >
> >> >> > Let me make sure I understand you correctly:
> >> >> >
> >> >> > What you describe is one test: checking that the 2300s are getting
> >> >> > the
> >> >> correct voltage from the 5v supply? And I should be getting +/- 12V
> >> >> and
> >> >> ground? Are there testpoints visible or is it pretty obvious where to
> >> >> test
> >> >> it?
> >> >> >
> >> >> > Thanks for the quick reply
> >> >> >
> >> >> > --- In emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com> <emax%
>
> >> 40yahoogroups.com>, "jammie"
> >>
> >> >> <jammie.emma@> wrote:
> >> >> > >
> >> >> > > check the 5 v supply as this is the control voltage of the
> filters
> >> >> > >
> >> >> > > the cv control gets sent to 1 of the 2300 for fc 1 for resonance
> 1
> >> is
> >> >> for the vca and thhe other is for the dacs for the 8 note polyphony
> >> >> each
> >> >> octal sample and hold circuits for each of the functions
> >> >> > >
> >> >> > > check to see that you are getting the corect voltage for
> operation
> >> of
> >> >> the 2300 or 4051 or smp08
> >> >> > >
> >> >> > > if i was to change them then i would upgrade them to the newer
> >> faster
> >> >> slew rate the smp08 are the best and are from analog devices and are
> >> >> direct
> >> >> replacements for the ssm2300 which are 4051 equivelents made by emu
> >> >> > >
> >> >> > > the smp08 they have a faster slew rate and have faster transient
> >> >> response with less distortion
> >> >> > >
> >> >> > >
> >> >> > > you should be getting 12vdc vdd and grnd
> >> >> > >
> >> >> > > ----- Original Message -----
> >> >> > > From: preslavl
> >> >> > > To: emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com> <emax%
> >> 40yahoogroups.com>
> >> >> > > Sent: Friday, February 05, 2010 5:54 PM
> >> >> > > Subject: [emax] Emax Problem Diagnosis
> >> >> > >
> >> >> > >
> >> >> > >
> >> >> > > Hello,
> >> >> > >
> >> >> > > I wanted to see if I can get some help diagnosing the problem(s)
> >> >> > > of
> >> >> > > an
> >> >> Emax I i just purchased.
> >> >> > >
> >> >> > > Here are they symptoms:
> >> >> > >
> >> >> > > - No Frequency Cutoff - I calibrated the data slider and it
> >> registers
> >> >> the frequency cutoff (FC) going up in numbers but you cannot hear any
> >> >> change.
> >> >> > >
> >> >> > > - No Attack in the ADSR or the filter ADSR - cannot hear an
> >> >> > > increase
> >>
> >> >> > > in
> >> >> attack even when the values increase.
> >> >> > >
> >> >> > > - No Volume - volume slider was calibrated and it seems to work
> >> >> > > but
> >> >> moving it up or down does not make a difference...volume seems to be
> >> >> at
> >> >> 100%.
> >> >> > >
> >> >> > > These are pretty much all the symptoms I've notices so far.
> >> >> > >
> >> >> > > Things I've covered so far:
> >> >> > >
> >> >> > > - I replaced the 4 SSM 2300 that were in the sampler - it did not
> >> >> > > seem
> >> >> to make ANY difference. I replaced the original chips with ones
> >> >> marked:
> >> >> "SSM2300 8652". I purchased these on eBAY. Could this be the issue?
> >> >> > >
> >> >> > > - I went through the recalibration procedure - no change.
> >> >> > >
> >> >> > > - I performed the diagnostic tests inside the Master menu (8, 8,
> >> >> > > YES).
> >> >> ERAM and Bank RAM checked out OK and all other tests seemed to have
> >> >> passed.
> >> >> > >
> >> >> > > Any ideas anyone?
> >> >> > >
> >> >> > > Thank you,
> >> >> > >
> >> >> > > Preslav
> >> >> > >
> >> >> > >
> >> >> > >
> >> >> > >
> >> >> > >
> >> >> > >
> >> >> > > ----------------------------------------------------------
> >> >> > >
> >> >> > >
> >> >> > >
> >> >> > > No virus found in this incoming message.
> >> >> > > Checked by AVG - www.avg.com
> >> >> > > Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date:
> >> >> 02/05/10 07:35:00
> >> >> > >
> >> >> > >
> >> >> > > [Non-text portions of this message have been removed]
> >> >> > >
> >> >> >
> >> >> >
> >> >> >
> >> >> >
> >> >> >
> >> >> >
> >> >> > ----------------------------------------------------------
> >> >> >
> >> >> >
> >> >> >
> >> >> > No virus found in this incoming message.
> >> >> > Checked by AVG - www.avg.com
> >> >> > Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date:
> >> >> > 02/05/10
> >> >> 07:35:00
> >> >> >
> >> >> >
> >> >> > [Non-text portions of this message have been removed]
> >> >> >
> >> >>
> >> >> ----------------------------------------------------------
> >> >>
> >> >> No virus found in this incoming message.
> >> >> Checked by AVG - www.avg.com
> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date:
> >> >> 02/05/10
> >> >> 07:35:00
> >> >>
> >> >> [Non-text portions of this message have been removed]
> >> >>
> >> >>
> >> >>
> >> >
> >> >
> >> > [Non-text portions of this message have been removed]
> >> >
> >> >
> >> >
> >> > ------------------------------------
> >> >
> >> > Emax and Emax II User's Group Website
> >> >
> >> > http://www.silveriafamily.comYahoo! Groups Links
> >>
> >> >
> >> >
> >> >
> >>
> >> ----------------------------------------------------------
> >>
> >> No virus found in this incoming message.
> >> Checked by AVG - www.avg.com
> >> Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date: 02/05/10
> >> 07:35:00
> >>
> >>
> >>
> >
> >
> > [Non-text portions of this message have been removed]
> >
> >
> >
> > ------------------------------------
> >
> > Emax and Emax II User's Group Website
> >
> > http://www.silveriafamily.comYahoo! Groups Links
> >
> >
> >
>
> ----------------------------------------------------------
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 8.5.435 / Virus Database: 271.1.1/2671 - Release Date: 02/06/10
> 07:35:00
>
>  
>


[Non-text portions of this message have been removed]

Re: [emax] Re: Emax Problem Diagnosis

2010-02-08 by jammie

you are not getting any cv voltage its just set to ov

that no voltage

so no voltage is being sent out by the ssm2300

ov means no resonance no volume no filtercut no pan

try setting up an external contreol to the filter cutoff to if it will sweep
Show quoted textHide quoted text
----- Original Message ----- 
From: "Preslav Lefterov" <plefterov@...>
To: <emax@yahoogroups.com>
Sent: Monday, February 08, 2010 7:06 PM
Subject: Re: [emax] Re: Emax Problem Diagnosis


> Jammie,
>
> Sorry for the delay. Got the readings:
>
> *IC41: *
>
> I have +10V on pin8, and -12V on pin4.
>
> *IC49:*
>
> I have +5V on pin 14
>
> *SSM2300s:*
>
> On all 4 I consistently have the following readings:
>
> pin 7 = -4.87V, pin 16 = +10.0V, pin 3 = 0.00V
>
>
> Any other ideas? You mentioned I should be getting 0-5V on pin 3 from the 
> CV
> voltage on all ssm2300s...how can I test that the voltage goes up to 5v
> since now it stays at 0.00v?
>
>
> Thanks,
>
> Preslav
>
>
>
>
> On Sat, Feb 6, 2010 at 4:04 PM, jammie <jammie.emma@...> 
> wrote:
>
>>
>>
>> no pins 8 +10v
>> pins 4 -12v are of off the tl082 ic41
>>
>> pin 3 gnd
>> pin 14 +5v are from the ic49 ad7524
>>
>> i said use pin 3 ground as your reference ground for testing the pins on
>> the
>> tl082
>>
>> pin 3 on the ssm2300 is the cv voltage check this to see if you are 
>> getting
>>
>> the cv 0-5v
>>
>> the rest of the pins for the ssm2300 are correct
>>
>> ----- Original Message -----
>> From: "Preslav Lefterov" <plefterov@... <plefterov%40gmail.com>>
>> To: <emax@yahoogroups.com <emax%40yahoogroups.com>>
>> Sent: Saturday, February 06, 2010 8:14 PM
>> Subject: Re: [emax] Re: Emax Problem Diagnosis
>>
>> > Jammie,
>> >
>> > Ok let me run through this stuff and make sure I understand correctly 
>> > (I
>> > should be able to do all the tests later today or tomorrow):
>> >
>> > 1. SSM2300s are fed by the *74HCT273* latching circuit. Is this the 
>> > name
>> > of
>> > the actual circuit as per the schematics or is it a specific IC or 
>> > other
>> > component?
>> >
>> >
>> > 2. I need to check the following pins on *IC49 (AD7524): *
>> > *
>> > ----> pin 8 should be +10V
>> > -----> pin 4 should be -12V
>> > -----> pin 3 is GROUND
>> > -----> pin 14 should be +5V
>> >
>> > 3. I need to check the following pins on IC41 (tlo82):
>> > -----> pin 1 should be 0-5V (this is the output to all SSM2300s)
>> >
>> > Which pin on IC41(tlo82) is GROUND?
>> >
>> > 4. I need to check the voltages on these pins on all SSM2300s:
>> >
>> > ----> pin 7 should be -5V
>> > ----> pin 8 is GROUND
>> > ----> pin 16 should be +10V
>> >
>> > 5. ICil327 is the -5V regulator, so if I am nto getting this voltage to
>> > the
>> > SSM2300s I can try replacing this?
>> >
>> > 6. Transistor TIP29 / QQ306 is the +10V regulator. It is attached to a
>> > heatsink ZE323. If I am not getting +10V I can try replacing this
>> > transistor?
>> >
>> >
>> > Just wanted to summarize your instructions. I will check all this stuff
>> as
>> > soon as I get to the studio (there is a snowstorm here and my car is
>> stuck
>> > currently).
>> >
>> >
>> > Thank you for guiding me through this again.
>> >
>> >
>> > Preslav
>> >
>> >
>> >
>> > *
>> >
>> > On Sat, Feb 6, 2010 at 10:26 AM, jammie
>> > <jammie.emma@... <jammie.emma%40blueyonder.co.uk>>wrote:
>> >
>> >>
>> >>
>> >> the -5v regulator is ic il327
>> >>
>> >> the tip29 npn power transister does the 10v it is qq306 it is attached
>> to
>> >> t0-220 heatsink ze323
>> >>
>> >> ----- Original Message -----
>> >> From: "Preslav Lefterov" <plefterov@... 
>> >> <plefterov%40gmail.com><plefterov%
>> 40gmail.com>>
>> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>> 40yahoogroups.com>>
>> >> Sent: Saturday, February 06, 2010 1:35 AM
>> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
>> >>
>> >> > Thanks for your help. Here are the readings:
>> >> >
>> >> > OR/GR = 12.48V
>> >> > YE/GR = 5.0V
>> >> > PU/GR = 12.18 (if i measure with red probe on green wire and black
>> >> > probe
>> >> > on
>> >> > the purple) or -12.18V (if I measure with the red probe on the 
>> >> > purple
>> >> > and
>> >> > black probe on the green)
>> >> >
>> >> > The floppy drive works perfectly...it loads the OS and and
>> >> > samples/presets.
>> >> >
>> >> > I appreciate your time.
>> >> >
>> >> > Preslav
>> >> >
>> >> > On Fri, Feb 5, 2010 at 7:17 PM, jammie
>> >> > <jammie.emma@... <jammie.emma%40blueyonder.co.uk>
>> <jammie.emma%40blueyonder.co.uk>>
>>
>> >>
>> >> > wrote:
>> >> >
>> >> >>
>> >> >>
>> >> >>
>> >> >> test each wire conection
>> >> >>
>> >> >> orange and green wires red probe on the orange black probe on the
>> >> >> green
>> >> >> for
>> >> >> +12v
>> >> >>
>> >> >> yellow and green wires red probe for yellow wire black probe on the
>> >> green
>> >> >> wire for +5v
>> >> >>
>> >> >> purple and green wires red probe on the green wire black probe on 
>> >> >> the
>> >> >> purple wire for -12v
>> >> >>
>> >> >> test this for me and give me your readings
>> >> >>
>> >> >> does the floppy drive work as this is the 5v line
>> >> >>
>> >> >> the 5 v on the mother boards for other circuits gets its 5v from
>> power
>> >> >> regulators of the +12v supply
>> >> >>
>> >> >> ----- Original Message -----
>> >> >> From: preslavl
>> >> >> To: emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>> 40yahoogroups.com> <emax%
>> >> 40yahoogroups.com>
>> >> >> Sent: Friday, February 05, 2010 9:37 PM
>> >> >> Subject: [emax] Re: Emax Problem Diagnosis
>> >> >>
>> >> >> So I tried testing the voltages at the connector that goes between
>> the
>> >> PS
>> >> >> board and the CPU Board. I tested on the PS side. If I follow the
>> >> >> color
>> >> >> coding I read in a message on here somewhere: Yellow (+5V), Orange
>> >> >> (+12V),
>> >> >> Purple (-12V), and Green (0V/Ground).
>> >> >>
>> >> >> I get nowhere near those voltages...now I might be doing this
>> >> >> completely
>> >> >> wrong, but I get +12V at the Green wire, and 0v at the Yellow 
>> >> >> (where
>> I
>> >> >> should be getting +5V). I also get +17V at the Orange wire...
>> >> >>
>> >> >> Again, I'm not sure if I'm testing at the correct points. By the 
>> >> >> way
>> >> >> I'm
>> >> >> still getting sound out of the Emax so it has not exploded in my
>> hands
>> >> as
>> >> >> of
>> >> >> yet.
>> >> >>
>> >> >> --- In emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>> 40yahoogroups.com> <emax%
>>
>> >> 40yahoogroups.com>, "jammie"
>> >>
>> >> >> <jammie.emma@...> wrote:
>> >> >> >
>> >> >> > right the cv (control voltages for the filter cutoff vca and
>> >> >> > resonance
>> >> >> are sent by the cv circuit ranging from 0v-5v
>> >> >> >
>> >> >> > which is sent by the cpu for control off the filter depending on
>> >> >> > envelope
>> >> >> settings or external controllers
>> >> >> >
>> >> >> > now the ssm2300 are sample and hold circuits they send out the
>> >> >> > digital
>> >> >> info into analog voltages which are sampled then transmitted as a
>> >> voltage
>> >> >> in
>> >> >> the range of 0-5v 0v = 0 resonance 5v = full resonance
>> >> >> >
>> >> >> > or cut off or vca volume
>> >> >> >
>> >> >> > thats what the first 3 ssm2300 deal with
>> >> >> >
>> >> >> > the 4th ssm2300 deals with the digital signal comming from the 
>> >> >> > dacs
>> >> >> > this
>> >> >> is the samples that are transmitted from the ram to the dacs and to
>> >> >> the
>> >> >> samplre and hold circuits which send out voltages 0-5v which
>> corispond
>> >> to
>> >> >> the digital sound into analog format
>> >> >> >
>> >> >> > now if you are getting sound out then the ssm2300 for that part 
>> >> >> > of
>> >> >> > the
>> >> >> circuit is working it seems to be the cv circuit that you are 
>> >> >> having
>> a
>> >> >> problem with not being sent into the ssm2300 to be made into the
>> >> >> analog
>> >> >> control voltages
>> >> >> >
>> >> >> > ----- Original Message -----
>> >> >> > From: preslavl
>> >> >> > To: emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>> 40yahoogroups.com> <emax%
>> >> 40yahoogroups.com>
>> >> >> > Sent: Friday, February 05, 2010 7:18 PM
>> >> >> > Subject: [emax] Re: Emax Problem Diagnosis
>> >> >> >
>> >> >> >
>> >> >> >
>> >> >> > Let me make sure I understand you correctly:
>> >> >> >
>> >> >> > What you describe is one test: checking that the 2300s are 
>> >> >> > getting
>> >> >> > the
>> >> >> correct voltage from the 5v supply? And I should be getting +/- 12V
>> >> >> and
>> >> >> ground? Are there testpoints visible or is it pretty obvious where 
>> >> >> to
>> >> >> test
>> >> >> it?
>> >> >> >
>> >> >> > Thanks for the quick reply
>> >> >> >
>> >> >> > --- In emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>> 40yahoogroups.com> <emax%
>>
>> >> 40yahoogroups.com>, "jammie"
>> >>
>> >> >> <jammie.emma@> wrote:
>> >> >> > >
>> >> >> > > check the 5 v supply as this is the control voltage of the
>> filters
>> >> >> > >
>> >> >> > > the cv control gets sent to 1 of the 2300 for fc 1 for 
>> >> >> > > resonance
>> 1
>> >> is
>> >> >> for the vca and thhe other is for the dacs for the 8 note polyphony
>> >> >> each
>> >> >> octal sample and hold circuits for each of the functions
>> >> >> > >
>> >> >> > > check to see that you are getting the corect voltage for
>> operation
>> >> of
>> >> >> the 2300 or 4051 or smp08
>> >> >> > >
>> >> >> > > if i was to change them then i would upgrade them to the newer
>> >> faster
>> >> >> slew rate the smp08 are the best and are from analog devices and 
>> >> >> are
>> >> >> direct
>> >> >> replacements for the ssm2300 which are 4051 equivelents made by emu
>> >> >> > >
>> >> >> > > the smp08 they have a faster slew rate and have faster 
>> >> >> > > transient
>> >> >> response with less distortion
>> >> >> > >
>> >> >> > >
>> >> >> > > you should be getting 12vdc vdd and grnd
>> >> >> > >
>> >> >> > > ----- Original Message -----
>> >> >> > > From: preslavl
>> >> >> > > To: emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>> 40yahoogroups.com> <emax%
>> >> 40yahoogroups.com>
>> >> >> > > Sent: Friday, February 05, 2010 5:54 PM
>> >> >> > > Subject: [emax] Emax Problem Diagnosis
>> >> >> > >
>> >> >> > >
>> >> >> > >
>> >> >> > > Hello,
>> >> >> > >
>> >> >> > > I wanted to see if I can get some help diagnosing the 
>> >> >> > > problem(s)
>> >> >> > > of
>> >> >> > > an
>> >> >> Emax I i just purchased.
>> >> >> > >
>> >> >> > > Here are they symptoms:
>> >> >> > >
>> >> >> > > - No Frequency Cutoff - I calibrated the data slider and it
>> >> registers
>> >> >> the frequency cutoff (FC) going up in numbers but you cannot hear 
>> >> >> any
>> >> >> change.
>> >> >> > >
>> >> >> > > - No Attack in the ADSR or the filter ADSR - cannot hear an
>> >> >> > > increase
>> >>
>> >> >> > > in
>> >> >> attack even when the values increase.
>> >> >> > >
>> >> >> > > - No Volume - volume slider was calibrated and it seems to work
>> >> >> > > but
>> >> >> moving it up or down does not make a difference...volume seems to 
>> >> >> be
>> >> >> at
>> >> >> 100%.
>> >> >> > >
>> >> >> > > These are pretty much all the symptoms I've notices so far.
>> >> >> > >
>> >> >> > > Things I've covered so far:
>> >> >> > >
>> >> >> > > - I replaced the 4 SSM 2300 that were in the sampler - it did 
>> >> >> > > not
>> >> >> > > seem
>> >> >> to make ANY difference. I replaced the original chips with ones
>> >> >> marked:
>> >> >> "SSM2300 8652". I purchased these on eBAY. Could this be the issue?
>> >> >> > >
>> >> >> > > - I went through the recalibration procedure - no change.
>> >> >> > >
>> >> >> > > - I performed the diagnostic tests inside the Master menu (8, 
>> >> >> > > 8,
>> >> >> > > YES).
>> >> >> ERAM and Bank RAM checked out OK and all other tests seemed to have
>> >> >> passed.
>> >> >> > >
>> >> >> > > Any ideas anyone?
>> >> >> > >
>> >> >> > > Thank you,
>> >> >> > >
>> >> >> > > Preslav
>> >> >> > >
>> >> >> > >
>> >> >> > >
>> >> >> > >
>> >> >> > >
>> >> >> > >
>> >> >> > > ----------------------------------------------------------
>> >> >> > >
>> >> >> > >
>> >> >> > >
>> >> >> > > No virus found in this incoming message.
>> >> >> > > Checked by AVG - www.avg.com
>> >> >> > > Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date:
>> >> >> 02/05/10 07:35:00
>> >> >> > >
>> >> >> > >
>> >> >> > > [Non-text portions of this message have been removed]
>> >> >> > >
>> >> >> >
>> >> >> >
>> >> >> >
>> >> >> >
>> >> >> >
>> >> >> >
>> >> >> > ----------------------------------------------------------
>> >> >> >
>> >> >> >
>> >> >> >
>> >> >> > No virus found in this incoming message.
>> >> >> > Checked by AVG - www.avg.com
>> >> >> > Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date:
>> >> >> > 02/05/10
>> >> >> 07:35:00
>> >> >> >
>> >> >> >
>> >> >> > [Non-text portions of this message have been removed]
>> >> >> >
>> >> >>
>> >> >> ----------------------------------------------------------
>> >> >>
>> >> >> No virus found in this incoming message.
>> >> >> Checked by AVG - www.avg.com
>> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date:
>> >> >> 02/05/10
>> >> >> 07:35:00
>> >> >>
>> >> >> [Non-text portions of this message have been removed]
>> >> >>
>> >> >>
>> >> >>
>> >> >
>> >> >
>> >> > [Non-text portions of this message have been removed]
>> >> >
>> >> >
>> >> >
>> >> > ------------------------------------
>> >> >
>> >> > Emax and Emax II User's Group Website
>> >> >
>> >> > http://www.silveriafamily.comYahoo! Groups Links
>> >>
>> >> >
>> >> >
>> >> >
>> >>
>> >> ----------------------------------------------------------
>> >>
>> >> No virus found in this incoming message.
>> >> Checked by AVG - www.avg.com
>> >> Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date: 
>> >> 02/05/10
>> >> 07:35:00
>> >>
>> >>
>> >>
>> >
>> >
>> > [Non-text portions of this message have been removed]
>> >
>> >
>> >
>> > ------------------------------------
>> >
>> > Emax and Emax II User's Group Website
>> >
>> > http://www.silveriafamily.comYahoo! Groups Links
>> >
>> >
>> >
>>
>> ----------------------------------------------------------
>>
>> No virus found in this incoming message.
>> Checked by AVG - www.avg.com
>> Version: 8.5.435 / Virus Database: 271.1.1/2671 - Release Date: 02/06/10
>> 07:35:00
>>
>>
>>
>
>
> [Non-text portions of this message have been removed]
>
>
>
> ------------------------------------
>
> Emax and Emax II User's Group Website
>
> http://www.silveriafamily.comYahoo! Groups Links
>
>
>


--------------------------------------------------------------------------------



No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 8.5.435 / Virus Database: 271.1.1/2675 - Release Date: 02/08/10 
07:35:00

Re: [emax] Re: Emax Problem Diagnosis

2010-02-08 by Preslav Lefterov

Jammie,

Just tested:

Preset Definition: Realtime controls: Pedal to FC - nothing; Pedal to Pitch
- I hear it modulating the pitch.

Then I tried MIDI A to FC:

I assigned MIDI A to FC and modulated that from an external source (Cubase).
When I assigned Midi A to Pitch it works and modulates the Pitch. When I
switch to volume/frequency/pan - I get nothing. Should I be measuring the
voltage across pin 3 of the ssm2300s while I'm modulating with MIDI A /
Pedal?


Preslav


On Mon, Feb 8, 2010 at 2:40 PM, jammie <jammie.emma@...> wrote:

>
>
> you are not getting any cv voltage its just set to ov
>
> that no voltage
>
> so no voltage is being sent out by the ssm2300
>
> ov means no resonance no volume no filtercut no pan
>
> try setting up an external contreol to the filter cutoff to if it will
> sweep
>
> ----- Original Message -----
> From: "Preslav Lefterov" <plefterov@gmail.com <plefterov%40gmail.com>>
> To: <emax@yahoogroups.com <emax%40yahoogroups.com>>
> Sent: Monday, February 08, 2010 7:06 PM
> Subject: Re: [emax] Re: Emax Problem Diagnosis
>
> > Jammie,
> >
> > Sorry for the delay. Got the readings:
> >
> > *IC41: *
> >
> > I have +10V on pin8, and -12V on pin4.
> >
> > *IC49:*
> >
> > I have +5V on pin 14
> >
> > *SSM2300s:*
> >
> > On all 4 I consistently have the following readings:
> >
> > pin 7 = -4.87V, pin 16 = +10.0V, pin 3 = 0.00V
> >
> >
> > Any other ideas? You mentioned I should be getting 0-5V on pin 3 from the
>
> > CV
> > voltage on all ssm2300s...how can I test that the voltage goes up to 5v
> > since now it stays at 0.00v?
> >
> >
> > Thanks,
> >
> > Preslav
> >
> >
> >
> >
> > On Sat, Feb 6, 2010 at 4:04 PM, jammie <jammie.emma@...<jammie.emma%40blueyonder.co.uk>>
>
> > wrote:
> >
> >>
> >>
> >> no pins 8 +10v
> >> pins 4 -12v are of off the tl082 ic41
> >>
> >> pin 3 gnd
> >> pin 14 +5v are from the ic49 ad7524
> >>
> >> i said use pin 3 ground as your reference ground for testing the pins on
> >> the
> >> tl082
> >>
> >> pin 3 on the ssm2300 is the cv voltage check this to see if you are
> >> getting
> >>
> >> the cv 0-5v
> >>
> >> the rest of the pins for the ssm2300 are correct
> >>
> >> ----- Original Message -----
> >> From: "Preslav Lefterov" <plefterov@... <plefterov%40gmail.com><plefterov%
> 40gmail.com>>
> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com>>
> >> Sent: Saturday, February 06, 2010 8:14 PM
> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
> >>
> >> > Jammie,
> >> >
> >> > Ok let me run through this stuff and make sure I understand correctly
> >> > (I
> >> > should be able to do all the tests later today or tomorrow):
> >> >
> >> > 1. SSM2300s are fed by the *74HCT273* latching circuit. Is this the
> >> > name
> >> > of
> >> > the actual circuit as per the schematics or is it a specific IC or
> >> > other
> >> > component?
> >> >
> >> >
> >> > 2. I need to check the following pins on *IC49 (AD7524): *
> >> > *
> >> > ----> pin 8 should be +10V
> >> > -----> pin 4 should be -12V
> >> > -----> pin 3 is GROUND
> >> > -----> pin 14 should be +5V
> >> >
> >> > 3. I need to check the following pins on IC41 (tlo82):
> >> > -----> pin 1 should be 0-5V (this is the output to all SSM2300s)
> >> >
> >> > Which pin on IC41(tlo82) is GROUND?
> >> >
> >> > 4. I need to check the voltages on these pins on all SSM2300s:
> >> >
> >> > ----> pin 7 should be -5V
> >> > ----> pin 8 is GROUND
> >> > ----> pin 16 should be +10V
> >> >
> >> > 5. ICil327 is the -5V regulator, so if I am nto getting this voltage
> to
> >> > the
> >> > SSM2300s I can try replacing this?
> >> >
> >> > 6. Transistor TIP29 / QQ306 is the +10V regulator. It is attached to a
> >> > heatsink ZE323. If I am not getting +10V I can try replacing this
> >> > transistor?
> >> >
> >> >
> >> > Just wanted to summarize your instructions. I will check all this
> stuff
> >> as
> >> > soon as I get to the studio (there is a snowstorm here and my car is
> >> stuck
> >> > currently).
> >> >
> >> >
> >> > Thank you for guiding me through this again.
> >> >
> >> >
> >> > Preslav
> >> >
> >> >
> >> >
> >> > *
> >> >
> >> > On Sat, Feb 6, 2010 at 10:26 AM, jammie
> >> > <jammie.emma@... <jammie.emma%40blueyonder.co.uk><jammie.emma%
> 40blueyonder.co.uk>>wrote:
>
> >> >
> >> >>
> >> >>
> >> >> the -5v regulator is ic il327
> >> >>
> >> >> the tip29 npn power transister does the 10v it is qq306 it is
> attached
> >> to
> >> >> t0-220 heatsink ze323
> >> >>
> >> >> ----- Original Message -----
> >> >> From: "Preslav Lefterov" <plefterov@...<plefterov%40gmail.com>
> >> >> <plefterov%40gmail.com><plefterov%
> >> 40gmail.com>>
> >> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com> <emax%
> >> 40yahoogroups.com>>
> >> >> Sent: Saturday, February 06, 2010 1:35 AM
> >> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
> >> >>
> >> >> > Thanks for your help. Here are the readings:
> >> >> >
> >> >> > OR/GR = 12.48V
> >> >> > YE/GR = 5.0V
> >> >> > PU/GR = 12.18 (if i measure with red probe on green wire and black
> >> >> > probe
> >> >> > on
> >> >> > the purple) or -12.18V (if I measure with the red probe on the
> >> >> > purple
> >> >> > and
> >> >> > black probe on the green)
> >> >> >
> >> >> > The floppy drive works perfectly...it loads the OS and and
> >> >> > samples/presets.
> >> >> >
> >> >> > I appreciate your time.
> >> >> >
> >> >> > Preslav
> >> >> >
> >> >> > On Fri, Feb 5, 2010 at 7:17 PM, jammie
> >> >> > <jammie.emma@....uk <jammie.emma%40blueyonder.co.uk><jammie.emma%
> 40blueyonder.co.uk>
> >> <jammie.emma%40blueyonder.co.uk>>
> >>
> >> >>
> >> >> > wrote:
> >> >> >
> >> >> >>
> >> >> >>
> >> >> >>
> >> >> >> test each wire conection
> >> >> >>
> >> >> >> orange and green wires red probe on the orange black probe on the
> >> >> >> green
> >> >> >> for
> >> >> >> +12v
> >> >> >>
> >> >> >> yellow and green wires red probe for yellow wire black probe on
> the
> >> >> green
> >> >> >> wire for +5v
> >> >> >>
> >> >> >> purple and green wires red probe on the green wire black probe on
> >> >> >> the
> >> >> >> purple wire for -12v
> >> >> >>
> >> >> >> test this for me and give me your readings
> >> >> >>
> >> >> >> does the floppy drive work as this is the 5v line
> >> >> >>
> >> >> >> the 5 v on the mother boards for other circuits gets its 5v from
> >> power
> >> >> >> regulators of the +12v supply
> >> >> >>
> >> >> >> ----- Original Message -----
> >> >> >> From: preslavl
> >> >> >> To: emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com> <emax%
> >> 40yahoogroups.com> <emax%
> >> >> 40yahoogroups.com>
> >> >> >> Sent: Friday, February 05, 2010 9:37 PM
> >> >> >> Subject: [emax] Re: Emax Problem Diagnosis
> >> >> >>
> >> >> >> So I tried testing the voltages at the connector that goes between
> >> the
> >> >> PS
> >> >> >> board and the CPU Board. I tested on the PS side. If I follow the
> >> >> >> color
> >> >> >> coding I read in a message on here somewhere: Yellow (+5V), Orange
> >> >> >> (+12V),
> >> >> >> Purple (-12V), and Green (0V/Ground).
> >> >> >>
> >> >> >> I get nowhere near those voltages...now I might be doing this
> >> >> >> completely
> >> >> >> wrong, but I get +12V at the Green wire, and 0v at the Yellow
> >> >> >> (where
> >> I
> >> >> >> should be getting +5V). I also get +17V at the Orange wire...
> >> >> >>
> >> >> >> Again, I'm not sure if I'm testing at the correct points. By the
> >> >> >> way
> >> >> >> I'm
> >> >> >> still getting sound out of the Emax so it has not exploded in my
> >> hands
> >> >> as
> >> >> >> of
> >> >> >> yet.
> >> >> >>
> >> >> >> --- In emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com> <emax%
> >> 40yahoogroups.com> <emax%
> >>
> >> >> 40yahoogroups.com>, "jammie"
> >> >>
> >> >> >> <jammie.emma@...> wrote:
> >> >> >> >
> >> >> >> > right the cv (control voltages for the filter cutoff vca and
> >> >> >> > resonance
> >> >> >> are sent by the cv circuit ranging from 0v-5v
> >> >> >> >
> >> >> >> > which is sent by the cpu for control off the filter depending on
> >> >> >> > envelope
> >> >> >> settings or external controllers
> >> >> >> >
> >> >> >> > now the ssm2300 are sample and hold circuits they send out the
> >> >> >> > digital
> >> >> >> info into analog voltages which are sampled then transmitted as a
> >> >> voltage
> >> >> >> in
> >> >> >> the range of 0-5v 0v = 0 resonance 5v = full resonance
> >> >> >> >
> >> >> >> > or cut off or vca volume
> >> >> >> >
> >> >> >> > thats what the first 3 ssm2300 deal with
> >> >> >> >
> >> >> >> > the 4th ssm2300 deals with the digital signal comming from the
> >> >> >> > dacs
> >> >> >> > this
> >> >> >> is the samples that are transmitted from the ram to the dacs and
> to
> >> >> >> the
> >> >> >> samplre and hold circuits which send out voltages 0-5v which
> >> corispond
> >> >> to
> >> >> >> the digital sound into analog format
> >> >> >> >
> >> >> >> > now if you are getting sound out then the ssm2300 for that part
> >> >> >> > of
> >> >> >> > the
> >> >> >> circuit is working it seems to be the cv circuit that you are
> >> >> >> having
> >> a
> >> >> >> problem with not being sent into the ssm2300 to be made into the
> >> >> >> analog
> >> >> >> control voltages
> >> >> >> >
> >> >> >> > ----- Original Message -----
> >> >> >> > From: preslavl
> >> >> >> > To: emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com> <emax%
> >> 40yahoogroups.com> <emax%
> >> >> 40yahoogroups.com>
> >> >> >> > Sent: Friday, February 05, 2010 7:18 PM
> >> >> >> > Subject: [emax] Re: Emax Problem Diagnosis
> >> >> >> >
> >> >> >> >
> >> >> >> >
> >> >> >> > Let me make sure I understand you correctly:
> >> >> >> >
> >> >> >> > What you describe is one test: checking that the 2300s are
> >> >> >> > getting
> >> >> >> > the
> >> >> >> correct voltage from the 5v supply? And I should be getting +/-
> 12V
> >> >> >> and
> >> >> >> ground? Are there testpoints visible or is it pretty obvious where
>
> >> >> >> to
> >> >> >> test
> >> >> >> it?
> >> >> >> >
> >> >> >> > Thanks for the quick reply
> >> >> >> >
> >> >> >> > --- In emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com> <emax%
> >> 40yahoogroups.com> <emax%
> >>
> >> >> 40yahoogroups.com>, "jammie"
> >> >>
> >> >> >> <jammie.emma@> wrote:
> >> >> >> > >
> >> >> >> > > check the 5 v supply as this is the control voltage of the
> >> filters
> >> >> >> > >
> >> >> >> > > the cv control gets sent to 1 of the 2300 for fc 1 for
> >> >> >> > > resonance
> >> 1
> >> >> is
> >> >> >> for the vca and thhe other is for the dacs for the 8 note
> polyphony
> >> >> >> each
> >> >> >> octal sample and hold circuits for each of the functions
> >> >> >> > >
> >> >> >> > > check to see that you are getting the corect voltage for
> >> operation
> >> >> of
> >> >> >> the 2300 or 4051 or smp08
> >> >> >> > >
> >> >> >> > > if i was to change them then i would upgrade them to the newer
> >> >> faster
> >> >> >> slew rate the smp08 are the best and are from analog devices and
> >> >> >> are
> >> >> >> direct
> >> >> >> replacements for the ssm2300 which are 4051 equivelents made by
> emu
> >> >> >> > >
> >> >> >> > > the smp08 they have a faster slew rate and have faster
> >> >> >> > > transient
> >> >> >> response with less distortion
> >> >> >> > >
> >> >> >> > >
> >> >> >> > > you should be getting 12vdc vdd and grnd
> >> >> >> > >
> >> >> >> > > ----- Original Message -----
> >> >> >> > > From: preslavl
> >> >> >> > > To: emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com> <emax%
> >> 40yahoogroups.com> <emax%
> >> >> 40yahoogroups.com>
> >> >> >> > > Sent: Friday, February 05, 2010 5:54 PM
> >> >> >> > > Subject: [emax] Emax Problem Diagnosis
> >> >> >> > >
> >> >> >> > >
> >> >> >> > >
> >> >> >> > > Hello,
> >> >> >> > >
> >> >> >> > > I wanted to see if I can get some help diagnosing the
> >> >> >> > > problem(s)
> >> >> >> > > of
> >> >> >> > > an
> >> >> >> Emax I i just purchased.
> >> >> >> > >
> >> >> >> > > Here are they symptoms:
> >> >> >> > >
> >> >> >> > > - No Frequency Cutoff - I calibrated the data slider and it
> >> >> registers
> >> >> >> the frequency cutoff (FC) going up in numbers but you cannot hear
> >> >> >> any
> >> >> >> change.
> >> >> >> > >
> >> >> >> > > - No Attack in the ADSR or the filter ADSR - cannot hear an
> >> >> >> > > increase
> >> >>
> >> >> >> > > in
> >> >> >> attack even when the values increase.
> >> >> >> > >
> >> >> >> > > - No Volume - volume slider was calibrated and it seems to
> work
> >> >> >> > > but
> >> >> >> moving it up or down does not make a difference...volume seems to
> >> >> >> be
> >> >> >> at
> >> >> >> 100%.
> >> >> >> > >
> >> >> >> > > These are pretty much all the symptoms I've notices so far.
> >> >> >> > >
> >> >> >> > > Things I've covered so far:
> >> >> >> > >
> >> >> >> > > - I replaced the 4 SSM 2300 that were in the sampler - it did
> >> >> >> > > not
> >> >> >> > > seem
> >> >> >> to make ANY difference. I replaced the original chips with ones
> >> >> >> marked:
> >> >> >> "SSM2300 8652". I purchased these on eBAY. Could this be the
> issue?
> >> >> >> > >
> >> >> >> > > - I went through the recalibration procedure - no change.
> >> >> >> > >
> >> >> >> > > - I performed the diagnostic tests inside the Master menu (8,
> >> >> >> > > 8,
> >> >> >> > > YES).
> >> >> >> ERAM and Bank RAM checked out OK and all other tests seemed to
> have
> >> >> >> passed.
> >> >> >> > >
> >> >> >> > > Any ideas anyone?
> >> >> >> > >
> >> >> >> > > Thank you,
> >> >> >> > >
> >> >> >> > > Preslav
> >> >> >> > >
> >> >> >> > >
> >> >> >> > >
> >> >> >> > >
> >> >> >> > >
> >> >> >> > >
> >> >> >> > > ----------------------------------------------------------
> >> >> >> > >
> >> >> >> > >
> >> >> >> > >
> >> >> >> > > No virus found in this incoming message.
> >> >> >> > > Checked by AVG - www.avg.com
> >> >> >> > > Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release
> Date:
> >> >> >> 02/05/10 07:35:00
> >> >> >> > >
> >> >> >> > >
> >> >> >> > > [Non-text portions of this message have been removed]
> >> >> >> > >
> >> >> >> >
> >> >> >> >
> >> >> >> >
> >> >> >> >
> >> >> >> >
> >> >> >> >
> >> >> >> > ----------------------------------------------------------
> >> >> >> >
> >> >> >> >
> >> >> >> >
> >> >> >> > No virus found in this incoming message.
> >> >> >> > Checked by AVG - www.avg.com
> >> >> >> > Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date:
> >> >> >> > 02/05/10
> >> >> >> 07:35:00
> >> >> >> >
> >> >> >> >
> >> >> >> > [Non-text portions of this message have been removed]
> >> >> >> >
> >> >> >>
> >> >> >> ----------------------------------------------------------
> >> >> >>
> >> >> >> No virus found in this incoming message.
> >> >> >> Checked by AVG - www.avg.com
> >> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date:
> >> >> >> 02/05/10
> >> >> >> 07:35:00
> >> >> >>
> >> >> >> [Non-text portions of this message have been removed]
> >> >> >>
> >> >> >>
> >> >> >>
> >> >> >
> >> >> >
> >> >> > [Non-text portions of this message have been removed]
> >> >> >
> >> >> >
> >> >> >
> >> >> > ------------------------------------
> >> >> >
> >> >> > Emax and Emax II User's Group Website
> >> >> >
> >> >> > http://www.silveriafamily.comYahoo! Groups Links
> >> >>
> >> >> >
> >> >> >
> >> >> >
> >> >>
> >> >> ----------------------------------------------------------
> >> >>
> >> >> No virus found in this incoming message.
> >> >> Checked by AVG - www.avg.com
> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date:
> >> >> 02/05/10
> >> >> 07:35:00
> >> >>
> >> >>
> >> >>
> >> >
> >> >
> >> > [Non-text portions of this message have been removed]
> >> >
> >> >
> >> >
> >> > ------------------------------------
> >> >
> >> > Emax and Emax II User's Group Website
> >> >
> >> > http://www.silveriafamily.comYahoo! Groups Links
> >> >
> >> >
> >> >
> >>
> >> ----------------------------------------------------------
> >>
> >> No virus found in this incoming message.
> >> Checked by AVG - www.avg.com
> >> Version: 8.5.435 / Virus Database: 271.1.1/2671 - Release Date: 02/06/10
> >> 07:35:00
> >>
> >>
> >>
> >
> >
> > [Non-text portions of this message have been removed]
> >
> >
> >
> > ------------------------------------
> >
> > Emax and Emax II User's Group Website
> >
> > http://www.silveriafamily.comYahoo! Groups Links
> >
> >
> >
>
> ----------------------------------------------------------
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 8.5.435 / Virus Database: 271.1.1/2675 - Release Date: 02/08/10
> 07:35:00
>
>  
>


[Non-text portions of this message have been removed]

Re: [emax] Re: Emax Problem Diagnosis

2010-02-09 by jammie

yes

it could be a broken cv dac or it could be the opamp the tlo82
Show quoted textHide quoted text
----- Original Message ----- 
From: "Preslav Lefterov" <plefterov@...>
To: <emax@yahoogroups.com>
Sent: Monday, February 08, 2010 10:01 PM
Subject: Re: [emax] Re: Emax Problem Diagnosis


> Jammie,
>
> Just tested:
>
> Preset Definition: Realtime controls: Pedal to FC - nothing; Pedal to 
> Pitch
> - I hear it modulating the pitch.
>
> Then I tried MIDI A to FC:
>
> I assigned MIDI A to FC and modulated that from an external source 
> (Cubase).
> When I assigned Midi A to Pitch it works and modulates the Pitch. When I
> switch to volume/frequency/pan - I get nothing. Should I be measuring the
> voltage across pin 3 of the ssm2300s while I'm modulating with MIDI A /
> Pedal?
>
>
> Preslav
>
>
> On Mon, Feb 8, 2010 at 2:40 PM, jammie <jammie.emma@...> 
> wrote:
>
>>
>>
>> you are not getting any cv voltage its just set to ov
>>
>> that no voltage
>>
>> so no voltage is being sent out by the ssm2300
>>
>> ov means no resonance no volume no filtercut no pan
>>
>> try setting up an external contreol to the filter cutoff to if it will
>> sweep
>>
>> ----- Original Message -----
>> From: "Preslav Lefterov" <plefterov@... <plefterov%40gmail.com>>
>> To: <emax@yahoogroups.com <emax%40yahoogroups.com>>
>> Sent: Monday, February 08, 2010 7:06 PM
>> Subject: Re: [emax] Re: Emax Problem Diagnosis
>>
>> > Jammie,
>> >
>> > Sorry for the delay. Got the readings:
>> >
>> > *IC41: *
>> >
>> > I have +10V on pin8, and -12V on pin4.
>> >
>> > *IC49:*
>> >
>> > I have +5V on pin 14
>> >
>> > *SSM2300s:*
>> >
>> > On all 4 I consistently have the following readings:
>> >
>> > pin 7 = -4.87V, pin 16 = +10.0V, pin 3 = 0.00V
>> >
>> >
>> > Any other ideas? You mentioned I should be getting 0-5V on pin 3 from 
>> > the
>>
>> > CV
>> > voltage on all ssm2300s...how can I test that the voltage goes up to 5v
>> > since now it stays at 0.00v?
>> >
>> >
>> > Thanks,
>> >
>> > Preslav
>> >
>> >
>> >
>> >
>> > On Sat, Feb 6, 2010 at 4:04 PM, jammie 
>> > <jammie.emma@...<jammie.emma%40blueyonder.co.uk>>
>>
>> > wrote:
>> >
>> >>
>> >>
>> >> no pins 8 +10v
>> >> pins 4 -12v are of off the tl082 ic41
>> >>
>> >> pin 3 gnd
>> >> pin 14 +5v are from the ic49 ad7524
>> >>
>> >> i said use pin 3 ground as your reference ground for testing the pins 
>> >> on
>> >> the
>> >> tl082
>> >>
>> >> pin 3 on the ssm2300 is the cv voltage check this to see if you are
>> >> getting
>> >>
>> >> the cv 0-5v
>> >>
>> >> the rest of the pins for the ssm2300 are correct
>> >>
>> >> ----- Original Message -----
>> >> From: "Preslav Lefterov" <plefterov@... 
>> >> <plefterov%40gmail.com><plefterov%
>> 40gmail.com>>
>> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>> 40yahoogroups.com>>
>> >> Sent: Saturday, February 06, 2010 8:14 PM
>> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
>> >>
>> >> > Jammie,
>> >> >
>> >> > Ok let me run through this stuff and make sure I understand 
>> >> > correctly
>> >> > (I
>> >> > should be able to do all the tests later today or tomorrow):
>> >> >
>> >> > 1. SSM2300s are fed by the *74HCT273* latching circuit. Is this the
>> >> > name
>> >> > of
>> >> > the actual circuit as per the schematics or is it a specific IC or
>> >> > other
>> >> > component?
>> >> >
>> >> >
>> >> > 2. I need to check the following pins on *IC49 (AD7524): *
>> >> > *
>> >> > ----> pin 8 should be +10V
>> >> > -----> pin 4 should be -12V
>> >> > -----> pin 3 is GROUND
>> >> > -----> pin 14 should be +5V
>> >> >
>> >> > 3. I need to check the following pins on IC41 (tlo82):
>> >> > -----> pin 1 should be 0-5V (this is the output to all SSM2300s)
>> >> >
>> >> > Which pin on IC41(tlo82) is GROUND?
>> >> >
>> >> > 4. I need to check the voltages on these pins on all SSM2300s:
>> >> >
>> >> > ----> pin 7 should be -5V
>> >> > ----> pin 8 is GROUND
>> >> > ----> pin 16 should be +10V
>> >> >
>> >> > 5. ICil327 is the -5V regulator, so if I am nto getting this voltage
>> to
>> >> > the
>> >> > SSM2300s I can try replacing this?
>> >> >
>> >> > 6. Transistor TIP29 / QQ306 is the +10V regulator. It is attached to 
>> >> > a
>> >> > heatsink ZE323. If I am not getting +10V I can try replacing this
>> >> > transistor?
>> >> >
>> >> >
>> >> > Just wanted to summarize your instructions. I will check all this
>> stuff
>> >> as
>> >> > soon as I get to the studio (there is a snowstorm here and my car is
>> >> stuck
>> >> > currently).
>> >> >
>> >> >
>> >> > Thank you for guiding me through this again.
>> >> >
>> >> >
>> >> > Preslav
>> >> >
>> >> >
>> >> >
>> >> > *
>> >> >
>> >> > On Sat, Feb 6, 2010 at 10:26 AM, jammie
>> >> > <jammie.emma@... 
>> >> > <jammie.emma%40blueyonder.co.uk><jammie.emma%
>> 40blueyonder.co.uk>>wrote:
>>
>> >> >
>> >> >>
>> >> >>
>> >> >> the -5v regulator is ic il327
>> >> >>
>> >> >> the tip29 npn power transister does the 10v it is qq306 it is
>> attached
>> >> to
>> >> >> t0-220 heatsink ze323
>> >> >>
>> >> >> ----- Original Message -----
>> >> >> From: "Preslav Lefterov" 
>> >> >> <plefterov@...<plefterov%40gmail.com>
>> >> >> <plefterov%40gmail.com><plefterov%
>> >> 40gmail.com>>
>> >> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>> 40yahoogroups.com> <emax%
>> >> 40yahoogroups.com>>
>> >> >> Sent: Saturday, February 06, 2010 1:35 AM
>> >> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
>> >> >>
>> >> >> > Thanks for your help. Here are the readings:
>> >> >> >
>> >> >> > OR/GR = 12.48V
>> >> >> > YE/GR = 5.0V
>> >> >> > PU/GR = 12.18 (if i measure with red probe on green wire and 
>> >> >> > black
>> >> >> > probe
>> >> >> > on
>> >> >> > the purple) or -12.18V (if I measure with the red probe on the
>> >> >> > purple
>> >> >> > and
>> >> >> > black probe on the green)
>> >> >> >
>> >> >> > The floppy drive works perfectly...it loads the OS and and
>> >> >> > samples/presets.
>> >> >> >
>> >> >> > I appreciate your time.
>> >> >> >
>> >> >> > Preslav
>> >> >> >
>> >> >> > On Fri, Feb 5, 2010 at 7:17 PM, jammie
>> >> >> > <jammie.emma@... 
>> >> >> > <jammie.emma%40blueyonder.co.uk><jammie.emma%
>> 40blueyonder.co.uk>
>> >> <jammie.emma%40blueyonder.co.uk>>
>> >>
>> >> >>
>> >> >> > wrote:
>> >> >> >
>> >> >> >>
>> >> >> >>
>> >> >> >>
>> >> >> >> test each wire conection
>> >> >> >>
>> >> >> >> orange and green wires red probe on the orange black probe on 
>> >> >> >> the
>> >> >> >> green
>> >> >> >> for
>> >> >> >> +12v
>> >> >> >>
>> >> >> >> yellow and green wires red probe for yellow wire black probe on
>> the
>> >> >> green
>> >> >> >> wire for +5v
>> >> >> >>
>> >> >> >> purple and green wires red probe on the green wire black probe 
>> >> >> >> on
>> >> >> >> the
>> >> >> >> purple wire for -12v
>> >> >> >>
>> >> >> >> test this for me and give me your readings
>> >> >> >>
>> >> >> >> does the floppy drive work as this is the 5v line
>> >> >> >>
>> >> >> >> the 5 v on the mother boards for other circuits gets its 5v from
>> >> power
>> >> >> >> regulators of the +12v supply
>> >> >> >>
>> >> >> >> ----- Original Message -----
>> >> >> >> From: preslavl
>> >> >> >> To: emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>> 40yahoogroups.com> <emax%
>> >> 40yahoogroups.com> <emax%
>> >> >> 40yahoogroups.com>
>> >> >> >> Sent: Friday, February 05, 2010 9:37 PM
>> >> >> >> Subject: [emax] Re: Emax Problem Diagnosis
>> >> >> >>
>> >> >> >> So I tried testing the voltages at the connector that goes 
>> >> >> >> between
>> >> the
>> >> >> PS
>> >> >> >> board and the CPU Board. I tested on the PS side. If I follow 
>> >> >> >> the
>> >> >> >> color
>> >> >> >> coding I read in a message on here somewhere: Yellow (+5V), 
>> >> >> >> Orange
>> >> >> >> (+12V),
>> >> >> >> Purple (-12V), and Green (0V/Ground).
>> >> >> >>
>> >> >> >> I get nowhere near those voltages...now I might be doing this
>> >> >> >> completely
>> >> >> >> wrong, but I get +12V at the Green wire, and 0v at the Yellow
>> >> >> >> (where
>> >> I
>> >> >> >> should be getting +5V). I also get +17V at the Orange wire...
>> >> >> >>
>> >> >> >> Again, I'm not sure if I'm testing at the correct points. By the
>> >> >> >> way
>> >> >> >> I'm
>> >> >> >> still getting sound out of the Emax so it has not exploded in my
>> >> hands
>> >> >> as
>> >> >> >> of
>> >> >> >> yet.
>> >> >> >>
>> >> >> >> --- In emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>> 40yahoogroups.com> <emax%
>> >> 40yahoogroups.com> <emax%
>> >>
>> >> >> 40yahoogroups.com>, "jammie"
>> >> >>
>> >> >> >> <jammie.emma@...> wrote:
>> >> >> >> >
>> >> >> >> > right the cv (control voltages for the filter cutoff vca and
>> >> >> >> > resonance
>> >> >> >> are sent by the cv circuit ranging from 0v-5v
>> >> >> >> >
>> >> >> >> > which is sent by the cpu for control off the filter depending 
>> >> >> >> > on
>> >> >> >> > envelope
>> >> >> >> settings or external controllers
>> >> >> >> >
>> >> >> >> > now the ssm2300 are sample and hold circuits they send out the
>> >> >> >> > digital
>> >> >> >> info into analog voltages which are sampled then transmitted as 
>> >> >> >> a
>> >> >> voltage
>> >> >> >> in
>> >> >> >> the range of 0-5v 0v = 0 resonance 5v = full resonance
>> >> >> >> >
>> >> >> >> > or cut off or vca volume
>> >> >> >> >
>> >> >> >> > thats what the first 3 ssm2300 deal with
>> >> >> >> >
>> >> >> >> > the 4th ssm2300 deals with the digital signal comming from the
>> >> >> >> > dacs
>> >> >> >> > this
>> >> >> >> is the samples that are transmitted from the ram to the dacs and
>> to
>> >> >> >> the
>> >> >> >> samplre and hold circuits which send out voltages 0-5v which
>> >> corispond
>> >> >> to
>> >> >> >> the digital sound into analog format
>> >> >> >> >
>> >> >> >> > now if you are getting sound out then the ssm2300 for that 
>> >> >> >> > part
>> >> >> >> > of
>> >> >> >> > the
>> >> >> >> circuit is working it seems to be the cv circuit that you are
>> >> >> >> having
>> >> a
>> >> >> >> problem with not being sent into the ssm2300 to be made into the
>> >> >> >> analog
>> >> >> >> control voltages
>> >> >> >> >
>> >> >> >> > ----- Original Message -----
>> >> >> >> > From: preslavl
>> >> >> >> > To: emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>> 40yahoogroups.com> <emax%
>> >> 40yahoogroups.com> <emax%
>> >> >> 40yahoogroups.com>
>> >> >> >> > Sent: Friday, February 05, 2010 7:18 PM
>> >> >> >> > Subject: [emax] Re: Emax Problem Diagnosis
>> >> >> >> >
>> >> >> >> >
>> >> >> >> >
>> >> >> >> > Let me make sure I understand you correctly:
>> >> >> >> >
>> >> >> >> > What you describe is one test: checking that the 2300s are
>> >> >> >> > getting
>> >> >> >> > the
>> >> >> >> correct voltage from the 5v supply? And I should be getting +/-
>> 12V
>> >> >> >> and
>> >> >> >> ground? Are there testpoints visible or is it pretty obvious 
>> >> >> >> where
>>
>> >> >> >> to
>> >> >> >> test
>> >> >> >> it?
>> >> >> >> >
>> >> >> >> > Thanks for the quick reply
>> >> >> >> >
>> >> >> >> > --- In emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>> 40yahoogroups.com> <emax%
>> >> 40yahoogroups.com> <emax%
>> >>
>> >> >> 40yahoogroups.com>, "jammie"
>> >> >>
>> >> >> >> <jammie.emma@> wrote:
>> >> >> >> > >
>> >> >> >> > > check the 5 v supply as this is the control voltage of the
>> >> filters
>> >> >> >> > >
>> >> >> >> > > the cv control gets sent to 1 of the 2300 for fc 1 for
>> >> >> >> > > resonance
>> >> 1
>> >> >> is
>> >> >> >> for the vca and thhe other is for the dacs for the 8 note
>> polyphony
>> >> >> >> each
>> >> >> >> octal sample and hold circuits for each of the functions
>> >> >> >> > >
>> >> >> >> > > check to see that you are getting the corect voltage for
>> >> operation
>> >> >> of
>> >> >> >> the 2300 or 4051 or smp08
>> >> >> >> > >
>> >> >> >> > > if i was to change them then i would upgrade them to the 
>> >> >> >> > > newer
>> >> >> faster
>> >> >> >> slew rate the smp08 are the best and are from analog devices and
>> >> >> >> are
>> >> >> >> direct
>> >> >> >> replacements for the ssm2300 which are 4051 equivelents made by
>> emu
>> >> >> >> > >
>> >> >> >> > > the smp08 they have a faster slew rate and have faster
>> >> >> >> > > transient
>> >> >> >> response with less distortion
>> >> >> >> > >
>> >> >> >> > >
>> >> >> >> > > you should be getting 12vdc vdd and grnd
>> >> >> >> > >
>> >> >> >> > > ----- Original Message -----
>> >> >> >> > > From: preslavl
>> >> >> >> > > To: emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>> 40yahoogroups.com> <emax%
>> >> 40yahoogroups.com> <emax%
>> >> >> 40yahoogroups.com>
>> >> >> >> > > Sent: Friday, February 05, 2010 5:54 PM
>> >> >> >> > > Subject: [emax] Emax Problem Diagnosis
>> >> >> >> > >
>> >> >> >> > >
>> >> >> >> > >
>> >> >> >> > > Hello,
>> >> >> >> > >
>> >> >> >> > > I wanted to see if I can get some help diagnosing the
>> >> >> >> > > problem(s)
>> >> >> >> > > of
>> >> >> >> > > an
>> >> >> >> Emax I i just purchased.
>> >> >> >> > >
>> >> >> >> > > Here are they symptoms:
>> >> >> >> > >
>> >> >> >> > > - No Frequency Cutoff - I calibrated the data slider and it
>> >> >> registers
>> >> >> >> the frequency cutoff (FC) going up in numbers but you cannot 
>> >> >> >> hear
>> >> >> >> any
>> >> >> >> change.
>> >> >> >> > >
>> >> >> >> > > - No Attack in the ADSR or the filter ADSR - cannot hear an
>> >> >> >> > > increase
>> >> >>
>> >> >> >> > > in
>> >> >> >> attack even when the values increase.
>> >> >> >> > >
>> >> >> >> > > - No Volume - volume slider was calibrated and it seems to
>> work
>> >> >> >> > > but
>> >> >> >> moving it up or down does not make a difference...volume seems 
>> >> >> >> to
>> >> >> >> be
>> >> >> >> at
>> >> >> >> 100%.
>> >> >> >> > >
>> >> >> >> > > These are pretty much all the symptoms I've notices so far.
>> >> >> >> > >
>> >> >> >> > > Things I've covered so far:
>> >> >> >> > >
>> >> >> >> > > - I replaced the 4 SSM 2300 that were in the sampler - it 
>> >> >> >> > > did
>> >> >> >> > > not
>> >> >> >> > > seem
>> >> >> >> to make ANY difference. I replaced the original chips with ones
>> >> >> >> marked:
>> >> >> >> "SSM2300 8652". I purchased these on eBAY. Could this be the
>> issue?
>> >> >> >> > >
>> >> >> >> > > - I went through the recalibration procedure - no change.
>> >> >> >> > >
>> >> >> >> > > - I performed the diagnostic tests inside the Master menu 
>> >> >> >> > > (8,
>> >> >> >> > > 8,
>> >> >> >> > > YES).
>> >> >> >> ERAM and Bank RAM checked out OK and all other tests seemed to
>> have
>> >> >> >> passed.
>> >> >> >> > >
>> >> >> >> > > Any ideas anyone?
>> >> >> >> > >
>> >> >> >> > > Thank you,
>> >> >> >> > >
>> >> >> >> > > Preslav
>> >> >> >> > >
>> >> >> >> > >
>> >> >> >> > >
>> >> >> >> > >
>> >> >> >> > >
>> >> >> >> > >
>> >> >> >> > > ----------------------------------------------------------
>> >> >> >> > >
>> >> >> >> > >
>> >> >> >> > >
>> >> >> >> > > No virus found in this incoming message.
>> >> >> >> > > Checked by AVG - www.avg.com
>> >> >> >> > > Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release
>> Date:
>> >> >> >> 02/05/10 07:35:00
>> >> >> >> > >
>> >> >> >> > >
>> >> >> >> > > [Non-text portions of this message have been removed]
>> >> >> >> > >
>> >> >> >> >
>> >> >> >> >
>> >> >> >> >
>> >> >> >> >
>> >> >> >> >
>> >> >> >> >
>> >> >> >> > ----------------------------------------------------------
>> >> >> >> >
>> >> >> >> >
>> >> >> >> >
>> >> >> >> > No virus found in this incoming message.
>> >> >> >> > Checked by AVG - www.avg.com
>> >> >> >> > Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release 
>> >> >> >> > Date:
>> >> >> >> > 02/05/10
>> >> >> >> 07:35:00
>> >> >> >> >
>> >> >> >> >
>> >> >> >> > [Non-text portions of this message have been removed]
>> >> >> >> >
>> >> >> >>
>> >> >> >> ----------------------------------------------------------
>> >> >> >>
>> >> >> >> No virus found in this incoming message.
>> >> >> >> Checked by AVG - www.avg.com
>> >> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date:
>> >> >> >> 02/05/10
>> >> >> >> 07:35:00
>> >> >> >>
>> >> >> >> [Non-text portions of this message have been removed]
>> >> >> >>
>> >> >> >>
>> >> >> >>
>> >> >> >
>> >> >> >
>> >> >> > [Non-text portions of this message have been removed]
>> >> >> >
>> >> >> >
>> >> >> >
>> >> >> > ------------------------------------
>> >> >> >
>> >> >> > Emax and Emax II User's Group Website
>> >> >> >
>> >> >> > http://www.silveriafamily.comYahoo! Groups Links
>> >> >>
>> >> >> >
>> >> >> >
>> >> >> >
>> >> >>
>> >> >> ----------------------------------------------------------
>> >> >>
>> >> >> No virus found in this incoming message.
>> >> >> Checked by AVG - www.avg.com
>> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date:
>> >> >> 02/05/10
>> >> >> 07:35:00
>> >> >>
>> >> >>
>> >> >>
>> >> >
>> >> >
>> >> > [Non-text portions of this message have been removed]
>> >> >
>> >> >
>> >> >
>> >> > ------------------------------------
>> >> >
>> >> > Emax and Emax II User's Group Website
>> >> >
>> >> > http://www.silveriafamily.comYahoo! Groups Links
>> >> >
>> >> >
>> >> >
>> >>
>> >> ----------------------------------------------------------
>> >>
>> >> No virus found in this incoming message.
>> >> Checked by AVG - www.avg.com
>> >> Version: 8.5.435 / Virus Database: 271.1.1/2671 - Release Date: 
>> >> 02/06/10
>> >> 07:35:00
>> >>
>> >>
>> >>
>> >
>> >
>> > [Non-text portions of this message have been removed]
>> >
>> >
>> >
>> > ------------------------------------
>> >
>> > Emax and Emax II User's Group Website
>> >
>> > http://www.silveriafamily.comYahoo! Groups Links
>> >
>> >
>> >
>>
>> ----------------------------------------------------------
>>
>> No virus found in this incoming message.
>> Checked by AVG - www.avg.com
>> Version: 8.5.435 / Virus Database: 271.1.1/2675 - Release Date: 02/08/10
>> 07:35:00
>>
>>
>>
>
>
> [Non-text portions of this message have been removed]
>
>
>
> ------------------------------------
>
> Emax and Emax II User's Group Website
>
> http://www.silveriafamily.comYahoo! Groups Links
>
>
>


--------------------------------------------------------------------------------



No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 8.5.435 / Virus Database: 271.1.1/2675 - Release Date: 02/08/10 
07:35:00

Re: [emax] Re: Emax Problem Diagnosis

2010-02-09 by Preslav Lefterov

Should I try replacing the AD 7524 and/or the TL082? How hard are these to
find ?


Preslav

On Tue, Feb 9, 2010 at 1:56 AM, jammie <jammie.emma@blueyonder.co.uk> wrote:

>
>
> yes
>
> it could be a broken cv dac or it could be the opamp the tlo82
>
> ----- Original Message -----
> From: "Preslav Lefterov" <plefterov@... <plefterov%40gmail.com>>
> To: <emax@yahoogroups.com <emax%40yahoogroups.com>>
> Sent: Monday, February 08, 2010 10:01 PM
> Subject: Re: [emax] Re: Emax Problem Diagnosis
>
> > Jammie,
> >
> > Just tested:
> >
> > Preset Definition: Realtime controls: Pedal to FC - nothing; Pedal to
> > Pitch
> > - I hear it modulating the pitch.
> >
> > Then I tried MIDI A to FC:
> >
> > I assigned MIDI A to FC and modulated that from an external source
> > (Cubase).
> > When I assigned Midi A to Pitch it works and modulates the Pitch. When I
> > switch to volume/frequency/pan - I get nothing. Should I be measuring the
> > voltage across pin 3 of the ssm2300s while I'm modulating with MIDI A /
> > Pedal?
> >
> >
> > Preslav
> >
> >
> > On Mon, Feb 8, 2010 at 2:40 PM, jammie <jammie.emma@....uk<jammie.emma%40blueyonder.co.uk>>
>
> > wrote:
> >
> >>
> >>
> >> you are not getting any cv voltage its just set to ov
> >>
> >> that no voltage
> >>
> >> so no voltage is being sent out by the ssm2300
> >>
> >> ov means no resonance no volume no filtercut no pan
> >>
> >> try setting up an external contreol to the filter cutoff to if it will
> >> sweep
> >>
> >> ----- Original Message -----
> >> From: "Preslav Lefterov" <plefterov@... <plefterov%40gmail.com><plefterov%
> 40gmail.com>>
> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com>>
> >> Sent: Monday, February 08, 2010 7:06 PM
> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
> >>
> >> > Jammie,
> >> >
> >> > Sorry for the delay. Got the readings:
> >> >
> >> > *IC41: *
> >> >
> >> > I have +10V on pin8, and -12V on pin4.
> >> >
> >> > *IC49:*
> >> >
> >> > I have +5V on pin 14
> >> >
> >> > *SSM2300s:*
> >> >
> >> > On all 4 I consistently have the following readings:
> >> >
> >> > pin 7 = -4.87V, pin 16 = +10.0V, pin 3 = 0.00V
> >> >
> >> >
> >> > Any other ideas? You mentioned I should be getting 0-5V on pin 3 from
> >> > the
> >>
> >> > CV
> >> > voltage on all ssm2300s...how can I test that the voltage goes up to
> 5v
> >> > since now it stays at 0.00v?
> >> >
> >> >
> >> > Thanks,
> >> >
> >> > Preslav
> >> >
> >> >
> >> >
> >> >
> >> > On Sat, Feb 6, 2010 at 4:04 PM, jammie
> >> > <jammie.emma@... <jammie.emma%40blueyonder.co.uk>
> <jammie.emma%40blueyonder.co.uk>>
>
> >>
> >> > wrote:
> >> >
> >> >>
> >> >>
> >> >> no pins 8 +10v
> >> >> pins 4 -12v are of off the tl082 ic41
> >> >>
> >> >> pin 3 gnd
> >> >> pin 14 +5v are from the ic49 ad7524
> >> >>
> >> >> i said use pin 3 ground as your reference ground for testing the pins
>
> >> >> on
> >> >> the
> >> >> tl082
> >> >>
> >> >> pin 3 on the ssm2300 is the cv voltage check this to see if you are
> >> >> getting
> >> >>
> >> >> the cv 0-5v
> >> >>
> >> >> the rest of the pins for the ssm2300 are correct
> >> >>
> >> >> ----- Original Message -----
> >> >> From: "Preslav Lefterov" <plefterov@...<plefterov%40gmail.com>
> >> >> <plefterov%40gmail.com><plefterov%
> >> 40gmail.com>>
> >> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com> <emax%
> >> 40yahoogroups.com>>
> >> >> Sent: Saturday, February 06, 2010 8:14 PM
> >> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
> >> >>
> >> >> > Jammie,
> >> >> >
> >> >> > Ok let me run through this stuff and make sure I understand
> >> >> > correctly
> >> >> > (I
> >> >> > should be able to do all the tests later today or tomorrow):
> >> >> >
> >> >> > 1. SSM2300s are fed by the *74HCT273* latching circuit. Is this the
> >> >> > name
> >> >> > of
> >> >> > the actual circuit as per the schematics or is it a specific IC or
> >> >> > other
> >> >> > component?
> >> >> >
> >> >> >
> >> >> > 2. I need to check the following pins on *IC49 (AD7524): *
> >> >> > *
> >> >> > ----> pin 8 should be +10V
> >> >> > -----> pin 4 should be -12V
> >> >> > -----> pin 3 is GROUND
> >> >> > -----> pin 14 should be +5V
> >> >> >
> >> >> > 3. I need to check the following pins on IC41 (tlo82):
> >> >> > -----> pin 1 should be 0-5V (this is the output to all SSM2300s)
> >> >> >
> >> >> > Which pin on IC41(tlo82) is GROUND?
> >> >> >
> >> >> > 4. I need to check the voltages on these pins on all SSM2300s:
> >> >> >
> >> >> > ----> pin 7 should be -5V
> >> >> > ----> pin 8 is GROUND
> >> >> > ----> pin 16 should be +10V
> >> >> >
> >> >> > 5. ICil327 is the -5V regulator, so if I am nto getting this
> voltage
> >> to
> >> >> > the
> >> >> > SSM2300s I can try replacing this?
> >> >> >
> >> >> > 6. Transistor TIP29 / QQ306 is the +10V regulator. It is attached
> to
> >> >> > a
> >> >> > heatsink ZE323. If I am not getting +10V I can try replacing this
> >> >> > transistor?
> >> >> >
> >> >> >
> >> >> > Just wanted to summarize your instructions. I will check all this
> >> stuff
> >> >> as
> >> >> > soon as I get to the studio (there is a snowstorm here and my car
> is
> >> >> stuck
> >> >> > currently).
> >> >> >
> >> >> >
> >> >> > Thank you for guiding me through this again.
> >> >> >
> >> >> >
> >> >> > Preslav
> >> >> >
> >> >> >
> >> >> >
> >> >> > *
> >> >> >
> >> >> > On Sat, Feb 6, 2010 at 10:26 AM, jammie
> >> >> > <jammie.emma@blueyonder.co.uk <jammie.emma%40blueyonder.co.uk>
> >> >> > <jammie.emma%40blueyonder.co.uk><jammie.emma%
>
> >> 40blueyonder.co.uk>>wrote:
> >>
> >> >> >
> >> >> >>
> >> >> >>
> >> >> >> the -5v regulator is ic il327
> >> >> >>
> >> >> >> the tip29 npn power transister does the 10v it is qq306 it is
> >> attached
> >> >> to
> >> >> >> t0-220 heatsink ze323
> >> >> >>
> >> >> >> ----- Original Message -----
> >> >> >> From: "Preslav Lefterov"
> >> >> >> <plefterov@... <plefterov%40gmail.com><plefterov%
> 40gmail.com>
> >> >> >> <plefterov%40gmail.com><plefterov%
> >> >> 40gmail.com>>
> >> >> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com> <emax%
> >> 40yahoogroups.com> <emax%
> >> >> 40yahoogroups.com>>
> >> >> >> Sent: Saturday, February 06, 2010 1:35 AM
> >> >> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
> >> >> >>
> >> >> >> > Thanks for your help. Here are the readings:
> >> >> >> >
> >> >> >> > OR/GR = 12.48V
> >> >> >> > YE/GR = 5.0V
> >> >> >> > PU/GR = 12.18 (if i measure with red probe on green wire and
> >> >> >> > black
> >> >> >> > probe
> >> >> >> > on
> >> >> >> > the purple) or -12.18V (if I measure with the red probe on the
> >> >> >> > purple
> >> >> >> > and
> >> >> >> > black probe on the green)
> >> >> >> >
> >> >> >> > The floppy drive works perfectly...it loads the OS and and
> >> >> >> > samples/presets.
> >> >> >> >
> >> >> >> > I appreciate your time.
> >> >> >> >
> >> >> >> > Preslav
> >> >> >> >
> >> >> >> > On Fri, Feb 5, 2010 at 7:17 PM, jammie
> >> >> >> > <jammie.emma@blueyonder.co.uk <jammie.emma%40blueyonder.co.uk>
> >> >> >> > <jammie.emma%40blueyonder.co.uk><jammie.emma%
> >> 40blueyonder.co.uk>
> >> >> <jammie.emma%40blueyonder.co.uk>>
> >> >>
> >> >> >>
> >> >> >> > wrote:
> >> >> >> >
> >> >> >> >>
> >> >> >> >>
> >> >> >> >>
> >> >> >> >> test each wire conection
> >> >> >> >>
> >> >> >> >> orange and green wires red probe on the orange black probe on
> >> >> >> >> the
> >> >> >> >> green
> >> >> >> >> for
> >> >> >> >> +12v
> >> >> >> >>
> >> >> >> >> yellow and green wires red probe for yellow wire black probe on
> >> the
> >> >> >> green
> >> >> >> >> wire for +5v
> >> >> >> >>
> >> >> >> >> purple and green wires red probe on the green wire black probe
> >> >> >> >> on
> >> >> >> >> the
> >> >> >> >> purple wire for -12v
> >> >> >> >>
> >> >> >> >> test this for me and give me your readings
> >> >> >> >>
> >> >> >> >> does the floppy drive work as this is the 5v line
> >> >> >> >>
> >> >> >> >> the 5 v on the mother boards for other circuits gets its 5v
> from
> >> >> power
> >> >> >> >> regulators of the +12v supply
> >> >> >> >>
> >> >> >> >> ----- Original Message -----
> >> >> >> >> From: preslavl
> >> >> >> >> To: emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com> <emax%
> >> 40yahoogroups.com> <emax%
> >> >> 40yahoogroups.com> <emax%
> >> >> >> 40yahoogroups.com>
> >> >> >> >> Sent: Friday, February 05, 2010 9:37 PM
> >> >> >> >> Subject: [emax] Re: Emax Problem Diagnosis
> >> >> >> >>
> >> >> >> >> So I tried testing the voltages at the connector that goes
> >> >> >> >> between
> >> >> the
> >> >> >> PS
> >> >> >> >> board and the CPU Board. I tested on the PS side. If I follow
> >> >> >> >> the
> >> >> >> >> color
> >> >> >> >> coding I read in a message on here somewhere: Yellow (+5V),
> >> >> >> >> Orange
> >> >> >> >> (+12V),
> >> >> >> >> Purple (-12V), and Green (0V/Ground).
> >> >> >> >>
> >> >> >> >> I get nowhere near those voltages...now I might be doing this
> >> >> >> >> completely
> >> >> >> >> wrong, but I get +12V at the Green wire, and 0v at the Yellow
> >> >> >> >> (where
> >> >> I
> >> >> >> >> should be getting +5V). I also get +17V at the Orange wire...
> >> >> >> >>
> >> >> >> >> Again, I'm not sure if I'm testing at the correct points. By
> the
> >> >> >> >> way
> >> >> >> >> I'm
> >> >> >> >> still getting sound out of the Emax so it has not exploded in
> my
> >> >> hands
> >> >> >> as
> >> >> >> >> of
> >> >> >> >> yet.
> >> >> >> >>
> >> >> >> >> --- In emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com> <emax%
> >> 40yahoogroups.com> <emax%
> >> >> 40yahoogroups.com> <emax%
> >> >>
> >> >> >> 40yahoogroups.com>, "jammie"
> >> >> >>
> >> >> >> >> <jammie.emma@...> wrote:
> >> >> >> >> >
> >> >> >> >> > right the cv (control voltages for the filter cutoff vca and
> >> >> >> >> > resonance
> >> >> >> >> are sent by the cv circuit ranging from 0v-5v
> >> >> >> >> >
> >> >> >> >> > which is sent by the cpu for control off the filter depending
>
> >> >> >> >> > on
> >> >> >> >> > envelope
> >> >> >> >> settings or external controllers
> >> >> >> >> >
> >> >> >> >> > now the ssm2300 are sample and hold circuits they send out
> the
> >> >> >> >> > digital
> >> >> >> >> info into analog voltages which are sampled then transmitted as
>
> >> >> >> >> a
> >> >> >> voltage
> >> >> >> >> in
> >> >> >> >> the range of 0-5v 0v = 0 resonance 5v = full resonance
> >> >> >> >> >
> >> >> >> >> > or cut off or vca volume
> >> >> >> >> >
> >> >> >> >> > thats what the first 3 ssm2300 deal with
> >> >> >> >> >
> >> >> >> >> > the 4th ssm2300 deals with the digital signal comming from
> the
> >> >> >> >> > dacs
> >> >> >> >> > this
> >> >> >> >> is the samples that are transmitted from the ram to the dacs
> and
> >> to
> >> >> >> >> the
> >> >> >> >> samplre and hold circuits which send out voltages 0-5v which
> >> >> corispond
> >> >> >> to
> >> >> >> >> the digital sound into analog format
> >> >> >> >> >
> >> >> >> >> > now if you are getting sound out then the ssm2300 for that
> >> >> >> >> > part
> >> >> >> >> > of
> >> >> >> >> > the
> >> >> >> >> circuit is working it seems to be the cv circuit that you are
> >> >> >> >> having
> >> >> a
> >> >> >> >> problem with not being sent into the ssm2300 to be made into
> the
> >> >> >> >> analog
> >> >> >> >> control voltages
> >> >> >> >> >
> >> >> >> >> > ----- Original Message -----
> >> >> >> >> > From: preslavl
> >> >> >> >> > To: emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com> <emax%
> >> 40yahoogroups.com> <emax%
> >> >> 40yahoogroups.com> <emax%
> >> >> >> 40yahoogroups.com>
> >> >> >> >> > Sent: Friday, February 05, 2010 7:18 PM
> >> >> >> >> > Subject: [emax] Re: Emax Problem Diagnosis
> >> >> >> >> >
> >> >> >> >> >
> >> >> >> >> >
> >> >> >> >> > Let me make sure I understand you correctly:
> >> >> >> >> >
> >> >> >> >> > What you describe is one test: checking that the 2300s are
> >> >> >> >> > getting
> >> >> >> >> > the
> >> >> >> >> correct voltage from the 5v supply? And I should be getting +/-
> >> 12V
> >> >> >> >> and
> >> >> >> >> ground? Are there testpoints visible or is it pretty obvious
> >> >> >> >> where
> >>
> >> >> >> >> to
> >> >> >> >> test
> >> >> >> >> it?
> >> >> >> >> >
> >> >> >> >> > Thanks for the quick reply
> >> >> >> >> >
> >> >> >> >> > --- In emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com> <emax%
> >> 40yahoogroups.com> <emax%
> >> >> 40yahoogroups.com> <emax%
> >> >>
> >> >> >> 40yahoogroups.com>, "jammie"
> >> >> >>
> >> >> >> >> <jammie.emma@> wrote:
> >> >> >> >> > >
> >> >> >> >> > > check the 5 v supply as this is the control voltage of the
> >> >> filters
> >> >> >> >> > >
> >> >> >> >> > > the cv control gets sent to 1 of the 2300 for fc 1 for
> >> >> >> >> > > resonance
> >> >> 1
> >> >> >> is
> >> >> >> >> for the vca and thhe other is for the dacs for the 8 note
> >> polyphony
> >> >> >> >> each
> >> >> >> >> octal sample and hold circuits for each of the functions
> >> >> >> >> > >
> >> >> >> >> > > check to see that you are getting the corect voltage for
> >> >> operation
> >> >> >> of
> >> >> >> >> the 2300 or 4051 or smp08
> >> >> >> >> > >
> >> >> >> >> > > if i was to change them then i would upgrade them to the
> >> >> >> >> > > newer
> >> >> >> faster
> >> >> >> >> slew rate the smp08 are the best and are from analog devices
> and
> >> >> >> >> are
> >> >> >> >> direct
> >> >> >> >> replacements for the ssm2300 which are 4051 equivelents made by
> >> emu
> >> >> >> >> > >
> >> >> >> >> > > the smp08 they have a faster slew rate and have faster
> >> >> >> >> > > transient
> >> >> >> >> response with less distortion
> >> >> >> >> > >
> >> >> >> >> > >
> >> >> >> >> > > you should be getting 12vdc vdd and grnd
> >> >> >> >> > >
> >> >> >> >> > > ----- Original Message -----
> >> >> >> >> > > From: preslavl
> >> >> >> >> > > To: emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com> <emax%
> >> 40yahoogroups.com> <emax%
> >> >> 40yahoogroups.com> <emax%
> >> >> >> 40yahoogroups.com>
> >> >> >> >> > > Sent: Friday, February 05, 2010 5:54 PM
> >> >> >> >> > > Subject: [emax] Emax Problem Diagnosis
> >> >> >> >> > >
> >> >> >> >> > >
> >> >> >> >> > >
> >> >> >> >> > > Hello,
> >> >> >> >> > >
> >> >> >> >> > > I wanted to see if I can get some help diagnosing the
> >> >> >> >> > > problem(s)
> >> >> >> >> > > of
> >> >> >> >> > > an
> >> >> >> >> Emax I i just purchased.
> >> >> >> >> > >
> >> >> >> >> > > Here are they symptoms:
> >> >> >> >> > >
> >> >> >> >> > > - No Frequency Cutoff - I calibrated the data slider and it
> >> >> >> registers
> >> >> >> >> the frequency cutoff (FC) going up in numbers but you cannot
> >> >> >> >> hear
> >> >> >> >> any
> >> >> >> >> change.
> >> >> >> >> > >
> >> >> >> >> > > - No Attack in the ADSR or the filter ADSR - cannot hear an
> >> >> >> >> > > increase
> >> >> >>
> >> >> >> >> > > in
> >> >> >> >> attack even when the values increase.
> >> >> >> >> > >
> >> >> >> >> > > - No Volume - volume slider was calibrated and it seems to
> >> work
> >> >> >> >> > > but
> >> >> >> >> moving it up or down does not make a difference...volume seems
> >> >> >> >> to
> >> >> >> >> be
> >> >> >> >> at
> >> >> >> >> 100%.
> >> >> >> >> > >
> >> >> >> >> > > These are pretty much all the symptoms I've notices so far.
> >> >> >> >> > >
> >> >> >> >> > > Things I've covered so far:
> >> >> >> >> > >
> >> >> >> >> > > - I replaced the 4 SSM 2300 that were in the sampler - it
> >> >> >> >> > > did
> >> >> >> >> > > not
> >> >> >> >> > > seem
> >> >> >> >> to make ANY difference. I replaced the original chips with ones
> >> >> >> >> marked:
> >> >> >> >> "SSM2300 8652". I purchased these on eBAY. Could this be the
> >> issue?
> >> >> >> >> > >
> >> >> >> >> > > - I went through the recalibration procedure - no change.
> >> >> >> >> > >
> >> >> >> >> > > - I performed the diagnostic tests inside the Master menu
> >> >> >> >> > > (8,
> >> >> >> >> > > 8,
> >> >> >> >> > > YES).
> >> >> >> >> ERAM and Bank RAM checked out OK and all other tests seemed to
> >> have
> >> >> >> >> passed.
> >> >> >> >> > >
> >> >> >> >> > > Any ideas anyone?
> >> >> >> >> > >
> >> >> >> >> > > Thank you,
> >> >> >> >> > >
> >> >> >> >> > > Preslav
> >> >> >> >> > >
> >> >> >> >> > >
> >> >> >> >> > >
> >> >> >> >> > >
> >> >> >> >> > >
> >> >> >> >> > >
> >> >> >> >> > > ----------------------------------------------------------
> >> >> >> >> > >
> >> >> >> >> > >
> >> >> >> >> > >
> >> >> >> >> > > No virus found in this incoming message.
> >> >> >> >> > > Checked by AVG - www.avg.com
> >> >> >> >> > > Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release
> >> Date:
> >> >> >> >> 02/05/10 07:35:00
> >> >> >> >> > >
> >> >> >> >> > >
> >> >> >> >> > > [Non-text portions of this message have been removed]
> >> >> >> >> > >
> >> >> >> >> >
> >> >> >> >> >
> >> >> >> >> >
> >> >> >> >> >
> >> >> >> >> >
> >> >> >> >> >
> >> >> >> >> > ----------------------------------------------------------
> >> >> >> >> >
> >> >> >> >> >
> >> >> >> >> >
> >> >> >> >> > No virus found in this incoming message.
> >> >> >> >> > Checked by AVG - www.avg.com
> >> >> >> >> > Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release
> >> >> >> >> > Date:
> >> >> >> >> > 02/05/10
> >> >> >> >> 07:35:00
> >> >> >> >> >
> >> >> >> >> >
> >> >> >> >> > [Non-text portions of this message have been removed]
> >> >> >> >> >
> >> >> >> >>
> >> >> >> >> ----------------------------------------------------------
> >> >> >> >>
> >> >> >> >> No virus found in this incoming message.
> >> >> >> >> Checked by AVG - www.avg.com
> >> >> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date:
> >> >> >> >> 02/05/10
> >> >> >> >> 07:35:00
> >> >> >> >>
> >> >> >> >> [Non-text portions of this message have been removed]
> >> >> >> >>
> >> >> >> >>
> >> >> >> >>
> >> >> >> >
> >> >> >> >
> >> >> >> > [Non-text portions of this message have been removed]
> >> >> >> >
> >> >> >> >
> >> >> >> >
> >> >> >> > ------------------------------------
> >> >> >> >
> >> >> >> > Emax and Emax II User's Group Website
> >> >> >> >
> >> >> >> > http://www.silveriafamily.comYahoo! Groups Links
> >> >> >>
> >> >> >> >
> >> >> >> >
> >> >> >> >
> >> >> >>
> >> >> >> ----------------------------------------------------------
> >> >> >>
> >> >> >> No virus found in this incoming message.
> >> >> >> Checked by AVG - www.avg.com
> >> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date:
> >> >> >> 02/05/10
> >> >> >> 07:35:00
> >> >> >>
> >> >> >>
> >> >> >>
> >> >> >
> >> >> >
> >> >> > [Non-text portions of this message have been removed]
> >> >> >
> >> >> >
> >> >> >
> >> >> > ------------------------------------
> >> >> >
> >> >> > Emax and Emax II User's Group Website
> >> >> >
> >> >> > http://www.silveriafamily.comYahoo! Groups Links
> >> >> >
> >> >> >
> >> >> >
> >> >>
> >> >> ----------------------------------------------------------
> >> >>
> >> >> No virus found in this incoming message.
> >> >> Checked by AVG - www.avg.com
> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2671 - Release Date:
> >> >> 02/06/10
> >> >> 07:35:00
> >> >>
> >> >>
> >> >>
> >> >
> >> >
> >> > [Non-text portions of this message have been removed]
> >> >
> >> >
> >> >
> >> > ------------------------------------
> >> >
> >> > Emax and Emax II User's Group Website
> >> >
> >> > http://www.silveriafamily.comYahoo! Groups Links
> >> >
> >> >
> >> >
> >>
> >> ----------------------------------------------------------
> >>
> >> No virus found in this incoming message.
> >> Checked by AVG - www.avg.com
> >> Version: 8.5.435 / Virus Database: 271.1.1/2675 - Release Date: 02/08/10
> >> 07:35:00
> >>
> >>
> >>
> >
> >
> > [Non-text portions of this message have been removed]
> >
> >
> >
> > ------------------------------------
> >
> > Emax and Emax II User's Group Website
> >
> > http://www.silveriafamily.comYahoo! Groups Links
> >
> >
> >
>
> ----------------------------------------------------------
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 8.5.435 / Virus Database: 271.1.1/2675 - Release Date: 02/08/10
> 07:35:00
>
>  
>


[Non-text portions of this message have been removed]

Re: [emax] Re: Emax Problem Diagnosis

2010-02-09 by jammie

YOU CAN STILL get them  rs or digikey farnell
Show quoted textHide quoted text
----- Original Message ----- 
From: "Preslav Lefterov" <plefterov@...>
To: <emax@yahoogroups.com>
Sent: Tuesday, February 09, 2010 2:02 PM
Subject: Re: [emax] Re: Emax Problem Diagnosis


> Should I try replacing the AD 7524 and/or the TL082? How hard are these to
> find ?
>
>
> Preslav
>
> On Tue, Feb 9, 2010 at 1:56 AM, jammie <jammie.emma@...> 
> wrote:
>
>>
>>
>> yes
>>
>> it could be a broken cv dac or it could be the opamp the tlo82
>>
>> ----- Original Message -----
>> From: "Preslav Lefterov" <plefterov@... <plefterov%40gmail.com>>
>> To: <emax@yahoogroups.com <emax%40yahoogroups.com>>
>> Sent: Monday, February 08, 2010 10:01 PM
>> Subject: Re: [emax] Re: Emax Problem Diagnosis
>>
>> > Jammie,
>> >
>> > Just tested:
>> >
>> > Preset Definition: Realtime controls: Pedal to FC - nothing; Pedal to
>> > Pitch
>> > - I hear it modulating the pitch.
>> >
>> > Then I tried MIDI A to FC:
>> >
>> > I assigned MIDI A to FC and modulated that from an external source
>> > (Cubase).
>> > When I assigned Midi A to Pitch it works and modulates the Pitch. When 
>> > I
>> > switch to volume/frequency/pan - I get nothing. Should I be measuring 
>> > the
>> > voltage across pin 3 of the ssm2300s while I'm modulating with MIDI A /
>> > Pedal?
>> >
>> >
>> > Preslav
>> >
>> >
>> > On Mon, Feb 8, 2010 at 2:40 PM, jammie 
>> > <jammie.emma@...<jammie.emma%40blueyonder.co.uk>>
>>
>> > wrote:
>> >
>> >>
>> >>
>> >> you are not getting any cv voltage its just set to ov
>> >>
>> >> that no voltage
>> >>
>> >> so no voltage is being sent out by the ssm2300
>> >>
>> >> ov means no resonance no volume no filtercut no pan
>> >>
>> >> try setting up an external contreol to the filter cutoff to if it will
>> >> sweep
>> >>
>> >> ----- Original Message -----
>> >> From: "Preslav Lefterov" <plefterov@... 
>> >> <plefterov%40gmail.com><plefterov%
>> 40gmail.com>>
>> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>> 40yahoogroups.com>>
>> >> Sent: Monday, February 08, 2010 7:06 PM
>> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
>> >>
>> >> > Jammie,
>> >> >
>> >> > Sorry for the delay. Got the readings:
>> >> >
>> >> > *IC41: *
>> >> >
>> >> > I have +10V on pin8, and -12V on pin4.
>> >> >
>> >> > *IC49:*
>> >> >
>> >> > I have +5V on pin 14
>> >> >
>> >> > *SSM2300s:*
>> >> >
>> >> > On all 4 I consistently have the following readings:
>> >> >
>> >> > pin 7 = -4.87V, pin 16 = +10.0V, pin 3 = 0.00V
>> >> >
>> >> >
>> >> > Any other ideas? You mentioned I should be getting 0-5V on pin 3 
>> >> > from
>> >> > the
>> >>
>> >> > CV
>> >> > voltage on all ssm2300s...how can I test that the voltage goes up to
>> 5v
>> >> > since now it stays at 0.00v?
>> >> >
>> >> >
>> >> > Thanks,
>> >> >
>> >> > Preslav
>> >> >
>> >> >
>> >> >
>> >> >
>> >> > On Sat, Feb 6, 2010 at 4:04 PM, jammie
>> >> > <jammie.emma@... <jammie.emma%40blueyonder.co.uk>
>> <jammie.emma%40blueyonder.co.uk>>
>>
>> >>
>> >> > wrote:
>> >> >
>> >> >>
>> >> >>
>> >> >> no pins 8 +10v
>> >> >> pins 4 -12v are of off the tl082 ic41
>> >> >>
>> >> >> pin 3 gnd
>> >> >> pin 14 +5v are from the ic49 ad7524
>> >> >>
>> >> >> i said use pin 3 ground as your reference ground for testing the 
>> >> >> pins
>>
>> >> >> on
>> >> >> the
>> >> >> tl082
>> >> >>
>> >> >> pin 3 on the ssm2300 is the cv voltage check this to see if you are
>> >> >> getting
>> >> >>
>> >> >> the cv 0-5v
>> >> >>
>> >> >> the rest of the pins for the ssm2300 are correct
>> >> >>
>> >> >> ----- Original Message -----
>> >> >> From: "Preslav Lefterov" 
>> >> >> <plefterov@...<plefterov%40gmail.com>
>> >> >> <plefterov%40gmail.com><plefterov%
>> >> 40gmail.com>>
>> >> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>> 40yahoogroups.com> <emax%
>> >> 40yahoogroups.com>>
>> >> >> Sent: Saturday, February 06, 2010 8:14 PM
>> >> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
>> >> >>
>> >> >> > Jammie,
>> >> >> >
>> >> >> > Ok let me run through this stuff and make sure I understand
>> >> >> > correctly
>> >> >> > (I
>> >> >> > should be able to do all the tests later today or tomorrow):
>> >> >> >
>> >> >> > 1. SSM2300s are fed by the *74HCT273* latching circuit. Is this 
>> >> >> > the
>> >> >> > name
>> >> >> > of
>> >> >> > the actual circuit as per the schematics or is it a specific IC 
>> >> >> > or
>> >> >> > other
>> >> >> > component?
>> >> >> >
>> >> >> >
>> >> >> > 2. I need to check the following pins on *IC49 (AD7524): *
>> >> >> > *
>> >> >> > ----> pin 8 should be +10V
>> >> >> > -----> pin 4 should be -12V
>> >> >> > -----> pin 3 is GROUND
>> >> >> > -----> pin 14 should be +5V
>> >> >> >
>> >> >> > 3. I need to check the following pins on IC41 (tlo82):
>> >> >> > -----> pin 1 should be 0-5V (this is the output to all SSM2300s)
>> >> >> >
>> >> >> > Which pin on IC41(tlo82) is GROUND?
>> >> >> >
>> >> >> > 4. I need to check the voltages on these pins on all SSM2300s:
>> >> >> >
>> >> >> > ----> pin 7 should be -5V
>> >> >> > ----> pin 8 is GROUND
>> >> >> > ----> pin 16 should be +10V
>> >> >> >
>> >> >> > 5. ICil327 is the -5V regulator, so if I am nto getting this
>> voltage
>> >> to
>> >> >> > the
>> >> >> > SSM2300s I can try replacing this?
>> >> >> >
>> >> >> > 6. Transistor TIP29 / QQ306 is the +10V regulator. It is attached
>> to
>> >> >> > a
>> >> >> > heatsink ZE323. If I am not getting +10V I can try replacing this
>> >> >> > transistor?
>> >> >> >
>> >> >> >
>> >> >> > Just wanted to summarize your instructions. I will check all this
>> >> stuff
>> >> >> as
>> >> >> > soon as I get to the studio (there is a snowstorm here and my car
>> is
>> >> >> stuck
>> >> >> > currently).
>> >> >> >
>> >> >> >
>> >> >> > Thank you for guiding me through this again.
>> >> >> >
>> >> >> >
>> >> >> > Preslav
>> >> >> >
>> >> >> >
>> >> >> >
>> >> >> > *
>> >> >> >
>> >> >> > On Sat, Feb 6, 2010 at 10:26 AM, jammie
>> >> >> > <jammie.emma@... <jammie.emma%40blueyonder.co.uk>
>> >> >> > <jammie.emma%40blueyonder.co.uk><jammie.emma%
>>
>> >> 40blueyonder.co.uk>>wrote:
>> >>
>> >> >> >
>> >> >> >>
>> >> >> >>
>> >> >> >> the -5v regulator is ic il327
>> >> >> >>
>> >> >> >> the tip29 npn power transister does the 10v it is qq306 it is
>> >> attached
>> >> >> to
>> >> >> >> t0-220 heatsink ze323
>> >> >> >>
>> >> >> >> ----- Original Message -----
>> >> >> >> From: "Preslav Lefterov"
>> >> >> >> <plefterov@... <plefterov%40gmail.com><plefterov%
>> 40gmail.com>
>> >> >> >> <plefterov%40gmail.com><plefterov%
>> >> >> 40gmail.com>>
>> >> >> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>> 40yahoogroups.com> <emax%
>> >> 40yahoogroups.com> <emax%
>> >> >> 40yahoogroups.com>>
>> >> >> >> Sent: Saturday, February 06, 2010 1:35 AM
>> >> >> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
>> >> >> >>
>> >> >> >> > Thanks for your help. Here are the readings:
>> >> >> >> >
>> >> >> >> > OR/GR = 12.48V
>> >> >> >> > YE/GR = 5.0V
>> >> >> >> > PU/GR = 12.18 (if i measure with red probe on green wire and
>> >> >> >> > black
>> >> >> >> > probe
>> >> >> >> > on
>> >> >> >> > the purple) or -12.18V (if I measure with the red probe on the
>> >> >> >> > purple
>> >> >> >> > and
>> >> >> >> > black probe on the green)
>> >> >> >> >
>> >> >> >> > The floppy drive works perfectly...it loads the OS and and
>> >> >> >> > samples/presets.
>> >> >> >> >
>> >> >> >> > I appreciate your time.
>> >> >> >> >
>> >> >> >> > Preslav
>> >> >> >> >
>> >> >> >> > On Fri, Feb 5, 2010 at 7:17 PM, jammie
>> >> >> >> > <jammie.emma@... <jammie.emma%40blueyonder.co.uk>
>> >> >> >> > <jammie.emma%40blueyonder.co.uk><jammie.emma%
>> >> 40blueyonder.co.uk>
>> >> >> <jammie.emma%40blueyonder.co.uk>>
>> >> >>
>> >> >> >>
>> >> >> >> > wrote:
>> >> >> >> >
>> >> >> >> >>
>> >> >> >> >>
>> >> >> >> >>
>> >> >> >> >> test each wire conection
>> >> >> >> >>
>> >> >> >> >> orange and green wires red probe on the orange black probe on
>> >> >> >> >> the
>> >> >> >> >> green
>> >> >> >> >> for
>> >> >> >> >> +12v
>> >> >> >> >>
>> >> >> >> >> yellow and green wires red probe for yellow wire black probe 
>> >> >> >> >> on
>> >> the
>> >> >> >> green
>> >> >> >> >> wire for +5v
>> >> >> >> >>
>> >> >> >> >> purple and green wires red probe on the green wire black 
>> >> >> >> >> probe
>> >> >> >> >> on
>> >> >> >> >> the
>> >> >> >> >> purple wire for -12v
>> >> >> >> >>
>> >> >> >> >> test this for me and give me your readings
>> >> >> >> >>
>> >> >> >> >> does the floppy drive work as this is the 5v line
>> >> >> >> >>
>> >> >> >> >> the 5 v on the mother boards for other circuits gets its 5v
>> from
>> >> >> power
>> >> >> >> >> regulators of the +12v supply
>> >> >> >> >>
>> >> >> >> >> ----- Original Message -----
>> >> >> >> >> From: preslavl
>> >> >> >> >> To: emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>> 40yahoogroups.com> <emax%
>> >> 40yahoogroups.com> <emax%
>> >> >> 40yahoogroups.com> <emax%
>> >> >> >> 40yahoogroups.com>
>> >> >> >> >> Sent: Friday, February 05, 2010 9:37 PM
>> >> >> >> >> Subject: [emax] Re: Emax Problem Diagnosis
>> >> >> >> >>
>> >> >> >> >> So I tried testing the voltages at the connector that goes
>> >> >> >> >> between
>> >> >> the
>> >> >> >> PS
>> >> >> >> >> board and the CPU Board. I tested on the PS side. If I follow
>> >> >> >> >> the
>> >> >> >> >> color
>> >> >> >> >> coding I read in a message on here somewhere: Yellow (+5V),
>> >> >> >> >> Orange
>> >> >> >> >> (+12V),
>> >> >> >> >> Purple (-12V), and Green (0V/Ground).
>> >> >> >> >>
>> >> >> >> >> I get nowhere near those voltages...now I might be doing this
>> >> >> >> >> completely
>> >> >> >> >> wrong, but I get +12V at the Green wire, and 0v at the Yellow
>> >> >> >> >> (where
>> >> >> I
>> >> >> >> >> should be getting +5V). I also get +17V at the Orange wire...
>> >> >> >> >>
>> >> >> >> >> Again, I'm not sure if I'm testing at the correct points. By
>> the
>> >> >> >> >> way
>> >> >> >> >> I'm
>> >> >> >> >> still getting sound out of the Emax so it has not exploded in
>> my
>> >> >> hands
>> >> >> >> as
>> >> >> >> >> of
>> >> >> >> >> yet.
>> >> >> >> >>
>> >> >> >> >> --- In emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>> 40yahoogroups.com> <emax%
>> >> 40yahoogroups.com> <emax%
>> >> >> 40yahoogroups.com> <emax%
>> >> >>
>> >> >> >> 40yahoogroups.com>, "jammie"
>> >> >> >>
>> >> >> >> >> <jammie.emma@...> wrote:
>> >> >> >> >> >
>> >> >> >> >> > right the cv (control voltages for the filter cutoff vca 
>> >> >> >> >> > and
>> >> >> >> >> > resonance
>> >> >> >> >> are sent by the cv circuit ranging from 0v-5v
>> >> >> >> >> >
>> >> >> >> >> > which is sent by the cpu for control off the filter 
>> >> >> >> >> > depending
>>
>> >> >> >> >> > on
>> >> >> >> >> > envelope
>> >> >> >> >> settings or external controllers
>> >> >> >> >> >
>> >> >> >> >> > now the ssm2300 are sample and hold circuits they send out
>> the
>> >> >> >> >> > digital
>> >> >> >> >> info into analog voltages which are sampled then transmitted 
>> >> >> >> >> as
>>
>> >> >> >> >> a
>> >> >> >> voltage
>> >> >> >> >> in
>> >> >> >> >> the range of 0-5v 0v = 0 resonance 5v = full resonance
>> >> >> >> >> >
>> >> >> >> >> > or cut off or vca volume
>> >> >> >> >> >
>> >> >> >> >> > thats what the first 3 ssm2300 deal with
>> >> >> >> >> >
>> >> >> >> >> > the 4th ssm2300 deals with the digital signal comming from
>> the
>> >> >> >> >> > dacs
>> >> >> >> >> > this
>> >> >> >> >> is the samples that are transmitted from the ram to the dacs
>> and
>> >> to
>> >> >> >> >> the
>> >> >> >> >> samplre and hold circuits which send out voltages 0-5v which
>> >> >> corispond
>> >> >> >> to
>> >> >> >> >> the digital sound into analog format
>> >> >> >> >> >
>> >> >> >> >> > now if you are getting sound out then the ssm2300 for that
>> >> >> >> >> > part
>> >> >> >> >> > of
>> >> >> >> >> > the
>> >> >> >> >> circuit is working it seems to be the cv circuit that you are
>> >> >> >> >> having
>> >> >> a
>> >> >> >> >> problem with not being sent into the ssm2300 to be made into
>> the
>> >> >> >> >> analog
>> >> >> >> >> control voltages
>> >> >> >> >> >
>> >> >> >> >> > ----- Original Message -----
>> >> >> >> >> > From: preslavl
>> >> >> >> >> > To: emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>> 40yahoogroups.com> <emax%
>> >> 40yahoogroups.com> <emax%
>> >> >> 40yahoogroups.com> <emax%
>> >> >> >> 40yahoogroups.com>
>> >> >> >> >> > Sent: Friday, February 05, 2010 7:18 PM
>> >> >> >> >> > Subject: [emax] Re: Emax Problem Diagnosis
>> >> >> >> >> >
>> >> >> >> >> >
>> >> >> >> >> >
>> >> >> >> >> > Let me make sure I understand you correctly:
>> >> >> >> >> >
>> >> >> >> >> > What you describe is one test: checking that the 2300s are
>> >> >> >> >> > getting
>> >> >> >> >> > the
>> >> >> >> >> correct voltage from the 5v supply? And I should be getting 
>> >> >> >> >> +/-
>> >> 12V
>> >> >> >> >> and
>> >> >> >> >> ground? Are there testpoints visible or is it pretty obvious
>> >> >> >> >> where
>> >>
>> >> >> >> >> to
>> >> >> >> >> test
>> >> >> >> >> it?
>> >> >> >> >> >
>> >> >> >> >> > Thanks for the quick reply
>> >> >> >> >> >
>> >> >> >> >> > --- In emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>> 40yahoogroups.com> <emax%
>> >> 40yahoogroups.com> <emax%
>> >> >> 40yahoogroups.com> <emax%
>> >> >>
>> >> >> >> 40yahoogroups.com>, "jammie"
>> >> >> >>
>> >> >> >> >> <jammie.emma@> wrote:
>> >> >> >> >> > >
>> >> >> >> >> > > check the 5 v supply as this is the control voltage of 
>> >> >> >> >> > > the
>> >> >> filters
>> >> >> >> >> > >
>> >> >> >> >> > > the cv control gets sent to 1 of the 2300 for fc 1 for
>> >> >> >> >> > > resonance
>> >> >> 1
>> >> >> >> is
>> >> >> >> >> for the vca and thhe other is for the dacs for the 8 note
>> >> polyphony
>> >> >> >> >> each
>> >> >> >> >> octal sample and hold circuits for each of the functions
>> >> >> >> >> > >
>> >> >> >> >> > > check to see that you are getting the corect voltage for
>> >> >> operation
>> >> >> >> of
>> >> >> >> >> the 2300 or 4051 or smp08
>> >> >> >> >> > >
>> >> >> >> >> > > if i was to change them then i would upgrade them to the
>> >> >> >> >> > > newer
>> >> >> >> faster
>> >> >> >> >> slew rate the smp08 are the best and are from analog devices
>> and
>> >> >> >> >> are
>> >> >> >> >> direct
>> >> >> >> >> replacements for the ssm2300 which are 4051 equivelents made 
>> >> >> >> >> by
>> >> emu
>> >> >> >> >> > >
>> >> >> >> >> > > the smp08 they have a faster slew rate and have faster
>> >> >> >> >> > > transient
>> >> >> >> >> response with less distortion
>> >> >> >> >> > >
>> >> >> >> >> > >
>> >> >> >> >> > > you should be getting 12vdc vdd and grnd
>> >> >> >> >> > >
>> >> >> >> >> > > ----- Original Message -----
>> >> >> >> >> > > From: preslavl
>> >> >> >> >> > > To: emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>> 40yahoogroups.com> <emax%
>> >> 40yahoogroups.com> <emax%
>> >> >> 40yahoogroups.com> <emax%
>> >> >> >> 40yahoogroups.com>
>> >> >> >> >> > > Sent: Friday, February 05, 2010 5:54 PM
>> >> >> >> >> > > Subject: [emax] Emax Problem Diagnosis
>> >> >> >> >> > >
>> >> >> >> >> > >
>> >> >> >> >> > >
>> >> >> >> >> > > Hello,
>> >> >> >> >> > >
>> >> >> >> >> > > I wanted to see if I can get some help diagnosing the
>> >> >> >> >> > > problem(s)
>> >> >> >> >> > > of
>> >> >> >> >> > > an
>> >> >> >> >> Emax I i just purchased.
>> >> >> >> >> > >
>> >> >> >> >> > > Here are they symptoms:
>> >> >> >> >> > >
>> >> >> >> >> > > - No Frequency Cutoff - I calibrated the data slider and 
>> >> >> >> >> > > it
>> >> >> >> registers
>> >> >> >> >> the frequency cutoff (FC) going up in numbers but you cannot
>> >> >> >> >> hear
>> >> >> >> >> any
>> >> >> >> >> change.
>> >> >> >> >> > >
>> >> >> >> >> > > - No Attack in the ADSR or the filter ADSR - cannot hear 
>> >> >> >> >> > > an
>> >> >> >> >> > > increase
>> >> >> >>
>> >> >> >> >> > > in
>> >> >> >> >> attack even when the values increase.
>> >> >> >> >> > >
>> >> >> >> >> > > - No Volume - volume slider was calibrated and it seems 
>> >> >> >> >> > > to
>> >> work
>> >> >> >> >> > > but
>> >> >> >> >> moving it up or down does not make a difference...volume 
>> >> >> >> >> seems
>> >> >> >> >> to
>> >> >> >> >> be
>> >> >> >> >> at
>> >> >> >> >> 100%.
>> >> >> >> >> > >
>> >> >> >> >> > > These are pretty much all the symptoms I've notices so 
>> >> >> >> >> > > far.
>> >> >> >> >> > >
>> >> >> >> >> > > Things I've covered so far:
>> >> >> >> >> > >
>> >> >> >> >> > > - I replaced the 4 SSM 2300 that were in the sampler - it
>> >> >> >> >> > > did
>> >> >> >> >> > > not
>> >> >> >> >> > > seem
>> >> >> >> >> to make ANY difference. I replaced the original chips with 
>> >> >> >> >> ones
>> >> >> >> >> marked:
>> >> >> >> >> "SSM2300 8652". I purchased these on eBAY. Could this be the
>> >> issue?
>> >> >> >> >> > >
>> >> >> >> >> > > - I went through the recalibration procedure - no change.
>> >> >> >> >> > >
>> >> >> >> >> > > - I performed the diagnostic tests inside the Master menu
>> >> >> >> >> > > (8,
>> >> >> >> >> > > 8,
>> >> >> >> >> > > YES).
>> >> >> >> >> ERAM and Bank RAM checked out OK and all other tests seemed 
>> >> >> >> >> to
>> >> have
>> >> >> >> >> passed.
>> >> >> >> >> > >
>> >> >> >> >> > > Any ideas anyone?
>> >> >> >> >> > >
>> >> >> >> >> > > Thank you,
>> >> >> >> >> > >
>> >> >> >> >> > > Preslav
>> >> >> >> >> > >
>> >> >> >> >> > >
>> >> >> >> >> > >
>> >> >> >> >> > >
>> >> >> >> >> > >
>> >> >> >> >> > >
>> >> >> >> >> > > ----------------------------------------------------------
>> >> >> >> >> > >
>> >> >> >> >> > >
>> >> >> >> >> > >
>> >> >> >> >> > > No virus found in this incoming message.
>> >> >> >> >> > > Checked by AVG - www.avg.com
>> >> >> >> >> > > Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release
>> >> Date:
>> >> >> >> >> 02/05/10 07:35:00
>> >> >> >> >> > >
>> >> >> >> >> > >
>> >> >> >> >> > > [Non-text portions of this message have been removed]
>> >> >> >> >> > >
>> >> >> >> >> >
>> >> >> >> >> >
>> >> >> >> >> >
>> >> >> >> >> >
>> >> >> >> >> >
>> >> >> >> >> >
>> >> >> >> >> > ----------------------------------------------------------
>> >> >> >> >> >
>> >> >> >> >> >
>> >> >> >> >> >
>> >> >> >> >> > No virus found in this incoming message.
>> >> >> >> >> > Checked by AVG - www.avg.com
>> >> >> >> >> > Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release
>> >> >> >> >> > Date:
>> >> >> >> >> > 02/05/10
>> >> >> >> >> 07:35:00
>> >> >> >> >> >
>> >> >> >> >> >
>> >> >> >> >> > [Non-text portions of this message have been removed]
>> >> >> >> >> >
>> >> >> >> >>
>> >> >> >> >> ----------------------------------------------------------
>> >> >> >> >>
>> >> >> >> >> No virus found in this incoming message.
>> >> >> >> >> Checked by AVG - www.avg.com
>> >> >> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release 
>> >> >> >> >> Date:
>> >> >> >> >> 02/05/10
>> >> >> >> >> 07:35:00
>> >> >> >> >>
>> >> >> >> >> [Non-text portions of this message have been removed]
>> >> >> >> >>
>> >> >> >> >>
>> >> >> >> >>
>> >> >> >> >
>> >> >> >> >
>> >> >> >> > [Non-text portions of this message have been removed]
>> >> >> >> >
>> >> >> >> >
>> >> >> >> >
>> >> >> >> > ------------------------------------
>> >> >> >> >
>> >> >> >> > Emax and Emax II User's Group Website
>> >> >> >> >
>> >> >> >> > http://www.silveriafamily.comYahoo! Groups Links
>> >> >> >>
>> >> >> >> >
>> >> >> >> >
>> >> >> >> >
>> >> >> >>
>> >> >> >> ----------------------------------------------------------
>> >> >> >>
>> >> >> >> No virus found in this incoming message.
>> >> >> >> Checked by AVG - www.avg.com
>> >> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date:
>> >> >> >> 02/05/10
>> >> >> >> 07:35:00
>> >> >> >>
>> >> >> >>
>> >> >> >>
>> >> >> >
>> >> >> >
>> >> >> > [Non-text portions of this message have been removed]
>> >> >> >
>> >> >> >
>> >> >> >
>> >> >> > ------------------------------------
>> >> >> >
>> >> >> > Emax and Emax II User's Group Website
>> >> >> >
>> >> >> > http://www.silveriafamily.comYahoo! Groups Links
>> >> >> >
>> >> >> >
>> >> >> >
>> >> >>
>> >> >> ----------------------------------------------------------
>> >> >>
>> >> >> No virus found in this incoming message.
>> >> >> Checked by AVG - www.avg.com
>> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2671 - Release Date:
>> >> >> 02/06/10
>> >> >> 07:35:00
>> >> >>
>> >> >>
>> >> >>
>> >> >
>> >> >
>> >> > [Non-text portions of this message have been removed]
>> >> >
>> >> >
>> >> >
>> >> > ------------------------------------
>> >> >
>> >> > Emax and Emax II User's Group Website
>> >> >
>> >> > http://www.silveriafamily.comYahoo! Groups Links
>> >> >
>> >> >
>> >> >
>> >>
>> >> ----------------------------------------------------------
>> >>
>> >> No virus found in this incoming message.
>> >> Checked by AVG - www.avg.com
>> >> Version: 8.5.435 / Virus Database: 271.1.1/2675 - Release Date: 
>> >> 02/08/10
>> >> 07:35:00
>> >>
>> >>
>> >>
>> >
>> >
>> > [Non-text portions of this message have been removed]
>> >
>> >
>> >
>> > ------------------------------------
>> >
>> > Emax and Emax II User's Group Website
>> >
>> > http://www.silveriafamily.comYahoo! Groups Links
>> >
>> >
>> >
>>
>> ----------------------------------------------------------
>>
>> No virus found in this incoming message.
>> Checked by AVG - www.avg.com
>> Version: 8.5.435 / Virus Database: 271.1.1/2675 - Release Date: 02/08/10
>> 07:35:00
>>
>>
>>
>
>
> [Non-text portions of this message have been removed]
>
>
>
> ------------------------------------
>
> Emax and Emax II User's Group Website
>
> http://www.silveriafamily.comYahoo! Groups Links
>
>
>


--------------------------------------------------------------------------------



No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 8.5.435 / Virus Database: 271.1.1/2676 - Release Date: 02/08/10 
19:35:00

Re: [emax] Re: Emax Problem Diagnosis

2010-02-09 by Preslav Lefterov

Digikey seems to have them. Would these variations work:

*AD7524* :
http://search.digikey.com/scripts/DkSearch/dksus.dll?WT.z_header=search_go&lang=en&site=us&keywords=AD7524JNZ-ND&x=0&y=0
*TL 082:*
http://search.digikey.com/scripts/DkSearch/dksus.dll?WT.z_header=search_go&lang=en&site=us&keywords=TL082CPNS-ND+&x=15&y=15

I also thought I'd order the SMP08. These are them correct:
http://cgi.ebay.com/Qty-3-Analog-Devices-AD-SMP08F-SMP08-8-ch-S-H-NEW_W0QQitemZ310061621913QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item48311ce299#ht_891wt_1167?


Thanks. Will keep you updated with the progress once I replace these ICs.


Preslav

On Tue, Feb 9, 2010 at 1:35 PM, jammie <jammie.emma@...> wrote:

>
>
> YOU CAN STILL get them rs or digikey farnell
>
> ----- Original Message -----
> From: "Preslav Lefterov" <plefterov@... <plefterov%40gmail.com>>
> To: <emax@yahoogroups.com <emax%40yahoogroups.com>>
> Sent: Tuesday, February 09, 2010 2:02 PM
> Subject: Re: [emax] Re: Emax Problem Diagnosis
>
> > Should I try replacing the AD 7524 and/or the TL082? How hard are these
> to
> > find ?
> >
> >
> > Preslav
> >
> > On Tue, Feb 9, 2010 at 1:56 AM, jammie <jammie.emma@...<jammie.emma%40blueyonder.co.uk>>
>
> > wrote:
> >
> >>
> >>
> >> yes
> >>
> >> it could be a broken cv dac or it could be the opamp the tlo82
> >>
> >> ----- Original Message -----
> >> From: "Preslav Lefterov" <plefterov@... <plefterov%40gmail.com><plefterov%
> 40gmail.com>>
> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com>>
> >> Sent: Monday, February 08, 2010 10:01 PM
> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
> >>
> >> > Jammie,
> >> >
> >> > Just tested:
> >> >
> >> > Preset Definition: Realtime controls: Pedal to FC - nothing; Pedal to
> >> > Pitch
> >> > - I hear it modulating the pitch.
> >> >
> >> > Then I tried MIDI A to FC:
> >> >
> >> > I assigned MIDI A to FC and modulated that from an external source
> >> > (Cubase).
> >> > When I assigned Midi A to Pitch it works and modulates the Pitch. When
>
> >> > I
> >> > switch to volume/frequency/pan - I get nothing. Should I be measuring
> >> > the
> >> > voltage across pin 3 of the ssm2300s while I'm modulating with MIDI A
> /
> >> > Pedal?
> >> >
> >> >
> >> > Preslav
> >> >
> >> >
> >> > On Mon, Feb 8, 2010 at 2:40 PM, jammie
> >> > <jammie.emma@... <jammie.emma%40blueyonder.co.uk>
> <jammie.emma%40blueyonder.co.uk>>
> >>
> >> > wrote:
> >> >
> >> >>
> >> >>
> >> >> you are not getting any cv voltage its just set to ov
> >> >>
> >> >> that no voltage
> >> >>
> >> >> so no voltage is being sent out by the ssm2300
> >> >>
> >> >> ov means no resonance no volume no filtercut no pan
> >> >>
> >> >> try setting up an external contreol to the filter cutoff to if it
> will
> >> >> sweep
> >> >>
> >> >> ----- Original Message -----
> >> >> From: "Preslav Lefterov" <plefterov@...<plefterov%40gmail.com>
> >> >> <plefterov%40gmail.com><plefterov%
> >> 40gmail.com>>
> >> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com> <emax%
> >> 40yahoogroups.com>>
> >> >> Sent: Monday, February 08, 2010 7:06 PM
> >> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
> >> >>
> >> >> > Jammie,
> >> >> >
> >> >> > Sorry for the delay. Got the readings:
> >> >> >
> >> >> > *IC41: *
> >> >> >
> >> >> > I have +10V on pin8, and -12V on pin4.
> >> >> >
> >> >> > *IC49:*
> >> >> >
> >> >> > I have +5V on pin 14
> >> >> >
> >> >> > *SSM2300s:*
> >> >> >
> >> >> > On all 4 I consistently have the following readings:
> >> >> >
> >> >> > pin 7 = -4.87V, pin 16 = +10.0V, pin 3 = 0.00V
> >> >> >
> >> >> >
> >> >> > Any other ideas? You mentioned I should be getting 0-5V on pin 3
> >> >> > from
> >> >> > the
> >> >>
> >> >> > CV
> >> >> > voltage on all ssm2300s...how can I test that the voltage goes up
> to
> >> 5v
> >> >> > since now it stays at 0.00v?
> >> >> >
> >> >> >
> >> >> > Thanks,
> >> >> >
> >> >> > Preslav
> >> >> >
> >> >> >
> >> >> >
> >> >> >
> >> >> > On Sat, Feb 6, 2010 at 4:04 PM, jammie
> >> >> > <jammie.emma@... <jammie.emma%40blueyonder.co.uk><jammie.emma%
> 40blueyonder.co.uk>
> >> <jammie.emma%40blueyonder.co.uk>>
> >>
> >> >>
> >> >> > wrote:
> >> >> >
> >> >> >>
> >> >> >>
> >> >> >> no pins 8 +10v
> >> >> >> pins 4 -12v are of off the tl082 ic41
> >> >> >>
> >> >> >> pin 3 gnd
> >> >> >> pin 14 +5v are from the ic49 ad7524
> >> >> >>
> >> >> >> i said use pin 3 ground as your reference ground for testing the
> >> >> >> pins
> >>
> >> >> >> on
> >> >> >> the
> >> >> >> tl082
> >> >> >>
> >> >> >> pin 3 on the ssm2300 is the cv voltage check this to see if you
> are
> >> >> >> getting
> >> >> >>
> >> >> >> the cv 0-5v
> >> >> >>
> >> >> >> the rest of the pins for the ssm2300 are correct
> >> >> >>
> >> >> >> ----- Original Message -----
> >> >> >> From: "Preslav Lefterov"
> >> >> >> <plefterov@... <plefterov%40gmail.com><plefterov%
> 40gmail.com>
> >> >> >> <plefterov%40gmail.com><plefterov%
> >> >> 40gmail.com>>
> >> >> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com> <emax%
> >> 40yahoogroups.com> <emax%
> >> >> 40yahoogroups.com>>
> >> >> >> Sent: Saturday, February 06, 2010 8:14 PM
> >> >> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
> >> >> >>
> >> >> >> > Jammie,
> >> >> >> >
> >> >> >> > Ok let me run through this stuff and make sure I understand
> >> >> >> > correctly
> >> >> >> > (I
> >> >> >> > should be able to do all the tests later today or tomorrow):
> >> >> >> >
> >> >> >> > 1. SSM2300s are fed by the *74HCT273* latching circuit. Is this
> >> >> >> > the
> >> >> >> > name
> >> >> >> > of
> >> >> >> > the actual circuit as per the schematics or is it a specific IC
> >> >> >> > or
> >> >> >> > other
> >> >> >> > component?
> >> >> >> >
> >> >> >> >
> >> >> >> > 2. I need to check the following pins on *IC49 (AD7524): *
> >> >> >> > *
> >> >> >> > ----> pin 8 should be +10V
> >> >> >> > -----> pin 4 should be -12V
> >> >> >> > -----> pin 3 is GROUND
> >> >> >> > -----> pin 14 should be +5V
> >> >> >> >
> >> >> >> > 3. I need to check the following pins on IC41 (tlo82):
> >> >> >> > -----> pin 1 should be 0-5V (this is the output to all SSM2300s)
> >> >> >> >
> >> >> >> > Which pin on IC41(tlo82) is GROUND?
> >> >> >> >
> >> >> >> > 4. I need to check the voltages on these pins on all SSM2300s:
> >> >> >> >
> >> >> >> > ----> pin 7 should be -5V
> >> >> >> > ----> pin 8 is GROUND
> >> >> >> > ----> pin 16 should be +10V
> >> >> >> >
> >> >> >> > 5. ICil327 is the -5V regulator, so if I am nto getting this
> >> voltage
> >> >> to
> >> >> >> > the
> >> >> >> > SSM2300s I can try replacing this?
> >> >> >> >
> >> >> >> > 6. Transistor TIP29 / QQ306 is the +10V regulator. It is
> attached
> >> to
> >> >> >> > a
> >> >> >> > heatsink ZE323. If I am not getting +10V I can try replacing
> this
> >> >> >> > transistor?
> >> >> >> >
> >> >> >> >
> >> >> >> > Just wanted to summarize your instructions. I will check all
> this
> >> >> stuff
> >> >> >> as
> >> >> >> > soon as I get to the studio (there is a snowstorm here and my
> car
> >> is
> >> >> >> stuck
> >> >> >> > currently).
> >> >> >> >
> >> >> >> >
> >> >> >> > Thank you for guiding me through this again.
> >> >> >> >
> >> >> >> >
> >> >> >> > Preslav
> >> >> >> >
> >> >> >> >
> >> >> >> >
> >> >> >> > *
> >> >> >> >
> >> >> >> > On Sat, Feb 6, 2010 at 10:26 AM, jammie
> >> >> >> > <jammie.emma@... <jammie.emma%40blueyonder.co.uk><jammie.emma%
> 40blueyonder.co.uk>
> >> >> >> > <jammie.emma%40blueyonder.co.uk><jammie.emma%
> >>
> >> >> 40blueyonder.co.uk>>wrote:
> >> >>
> >> >> >> >
> >> >> >> >>
> >> >> >> >>
> >> >> >> >> the -5v regulator is ic il327
> >> >> >> >>
> >> >> >> >> the tip29 npn power transister does the 10v it is qq306 it is
> >> >> attached
> >> >> >> to
> >> >> >> >> t0-220 heatsink ze323
> >> >> >> >>
> >> >> >> >> ----- Original Message -----
> >> >> >> >> From: "Preslav Lefterov"
> >> >> >> >> <plefterov@... <plefterov%40gmail.com> <plefterov%
> 40gmail.com><plefterov%
> >> 40gmail.com>
> >> >> >> >> <plefterov%40gmail.com><plefterov%
> >> >> >> 40gmail.com>>
> >> >> >> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com> <emax%
> >> 40yahoogroups.com> <emax%
> >> >> 40yahoogroups.com> <emax%
> >> >> >> 40yahoogroups.com>>
> >> >> >> >> Sent: Saturday, February 06, 2010 1:35 AM
> >> >> >> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
> >> >> >> >>
> >> >> >> >> > Thanks for your help. Here are the readings:
> >> >> >> >> >
> >> >> >> >> > OR/GR = 12.48V
> >> >> >> >> > YE/GR = 5.0V
> >> >> >> >> > PU/GR = 12.18 (if i measure with red probe on green wire and
> >> >> >> >> > black
> >> >> >> >> > probe
> >> >> >> >> > on
> >> >> >> >> > the purple) or -12.18V (if I measure with the red probe on
> the
> >> >> >> >> > purple
> >> >> >> >> > and
> >> >> >> >> > black probe on the green)
> >> >> >> >> >
> >> >> >> >> > The floppy drive works perfectly...it loads the OS and and
> >> >> >> >> > samples/presets.
> >> >> >> >> >
> >> >> >> >> > I appreciate your time.
> >> >> >> >> >
> >> >> >> >> > Preslav
> >> >> >> >> >
> >> >> >> >> > On Fri, Feb 5, 2010 at 7:17 PM, jammie
> >> >> >> >> > <jammie.emma@...<jammie.emma%40blueyonder.co.uk><jammie.emma%
> 40blueyonder.co.uk>
> >> >> >> >> > <jammie.emma%40blueyonder.co.uk><jammie.emma%
> >> >> 40blueyonder.co.uk>
> >> >> >> <jammie.emma%40blueyonder.co.uk>>
> >> >> >>
> >> >> >> >>
> >> >> >> >> > wrote:
> >> >> >> >> >
> >> >> >> >> >>
> >> >> >> >> >>
> >> >> >> >> >>
> >> >> >> >> >> test each wire conection
> >> >> >> >> >>
> >> >> >> >> >> orange and green wires red probe on the orange black probe
> on
> >> >> >> >> >> the
> >> >> >> >> >> green
> >> >> >> >> >> for
> >> >> >> >> >> +12v
> >> >> >> >> >>
> >> >> >> >> >> yellow and green wires red probe for yellow wire black probe
>
> >> >> >> >> >> on
> >> >> the
> >> >> >> >> green
> >> >> >> >> >> wire for +5v
> >> >> >> >> >>
> >> >> >> >> >> purple and green wires red probe on the green wire black
> >> >> >> >> >> probe
> >> >> >> >> >> on
> >> >> >> >> >> the
> >> >> >> >> >> purple wire for -12v
> >> >> >> >> >>
> >> >> >> >> >> test this for me and give me your readings
> >> >> >> >> >>
> >> >> >> >> >> does the floppy drive work as this is the 5v line
> >> >> >> >> >>
> >> >> >> >> >> the 5 v on the mother boards for other circuits gets its 5v
> >> from
> >> >> >> power
> >> >> >> >> >> regulators of the +12v supply
> >> >> >> >> >>
> >> >> >> >> >> ----- Original Message -----
> >> >> >> >> >> From: preslavl
> >> >> >> >> >> To: emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com> <emax%
> >> 40yahoogroups.com> <emax%
> >> >> 40yahoogroups.com> <emax%
> >> >> >> 40yahoogroups.com> <emax%
> >> >> >> >> 40yahoogroups.com>
> >> >> >> >> >> Sent: Friday, February 05, 2010 9:37 PM
> >> >> >> >> >> Subject: [emax] Re: Emax Problem Diagnosis
> >> >> >> >> >>
> >> >> >> >> >> So I tried testing the voltages at the connector that goes
> >> >> >> >> >> between
> >> >> >> the
> >> >> >> >> PS
> >> >> >> >> >> board and the CPU Board. I tested on the PS side. If I
> follow
> >> >> >> >> >> the
> >> >> >> >> >> color
> >> >> >> >> >> coding I read in a message on here somewhere: Yellow (+5V),
> >> >> >> >> >> Orange
> >> >> >> >> >> (+12V),
> >> >> >> >> >> Purple (-12V), and Green (0V/Ground).
> >> >> >> >> >>
> >> >> >> >> >> I get nowhere near those voltages...now I might be doing
> this
> >> >> >> >> >> completely
> >> >> >> >> >> wrong, but I get +12V at the Green wire, and 0v at the
> Yellow
> >> >> >> >> >> (where
> >> >> >> I
> >> >> >> >> >> should be getting +5V). I also get +17V at the Orange
> wire...
> >> >> >> >> >>
> >> >> >> >> >> Again, I'm not sure if I'm testing at the correct points. By
> >> the
> >> >> >> >> >> way
> >> >> >> >> >> I'm
> >> >> >> >> >> still getting sound out of the Emax so it has not exploded
> in
> >> my
> >> >> >> hands
> >> >> >> >> as
> >> >> >> >> >> of
> >> >> >> >> >> yet.
> >> >> >> >> >>
> >> >> >> >> >> --- In emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com> <emax%
> >> 40yahoogroups.com> <emax%
> >> >> 40yahoogroups.com> <emax%
> >> >> >> 40yahoogroups.com> <emax%
> >> >> >>
> >> >> >> >> 40yahoogroups.com>, "jammie"
> >> >> >> >>
> >> >> >> >> >> <jammie.emma@...> wrote:
> >> >> >> >> >> >
> >> >> >> >> >> > right the cv (control voltages for the filter cutoff vca
> >> >> >> >> >> > and
> >> >> >> >> >> > resonance
> >> >> >> >> >> are sent by the cv circuit ranging from 0v-5v
> >> >> >> >> >> >
> >> >> >> >> >> > which is sent by the cpu for control off the filter
> >> >> >> >> >> > depending
> >>
> >> >> >> >> >> > on
> >> >> >> >> >> > envelope
> >> >> >> >> >> settings or external controllers
> >> >> >> >> >> >
> >> >> >> >> >> > now the ssm2300 are sample and hold circuits they send out
> >> the
> >> >> >> >> >> > digital
> >> >> >> >> >> info into analog voltages which are sampled then transmitted
>
> >> >> >> >> >> as
> >>
> >> >> >> >> >> a
> >> >> >> >> voltage
> >> >> >> >> >> in
> >> >> >> >> >> the range of 0-5v 0v = 0 resonance 5v = full resonance
> >> >> >> >> >> >
> >> >> >> >> >> > or cut off or vca volume
> >> >> >> >> >> >
> >> >> >> >> >> > thats what the first 3 ssm2300 deal with
> >> >> >> >> >> >
> >> >> >> >> >> > the 4th ssm2300 deals with the digital signal comming from
> >> the
> >> >> >> >> >> > dacs
> >> >> >> >> >> > this
> >> >> >> >> >> is the samples that are transmitted from the ram to the dacs
> >> and
> >> >> to
> >> >> >> >> >> the
> >> >> >> >> >> samplre and hold circuits which send out voltages 0-5v which
> >> >> >> corispond
> >> >> >> >> to
> >> >> >> >> >> the digital sound into analog format
> >> >> >> >> >> >
> >> >> >> >> >> > now if you are getting sound out then the ssm2300 for that
> >> >> >> >> >> > part
> >> >> >> >> >> > of
> >> >> >> >> >> > the
> >> >> >> >> >> circuit is working it seems to be the cv circuit that you
> are
> >> >> >> >> >> having
> >> >> >> a
> >> >> >> >> >> problem with not being sent into the ssm2300 to be made into
> >> the
> >> >> >> >> >> analog
> >> >> >> >> >> control voltages
> >> >> >> >> >> >
> >> >> >> >> >> > ----- Original Message -----
> >> >> >> >> >> > From: preslavl
> >> >> >> >> >> > To: emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com> <emax%
> >> 40yahoogroups.com> <emax%
> >> >> 40yahoogroups.com> <emax%
> >> >> >> 40yahoogroups.com> <emax%
> >> >> >> >> 40yahoogroups.com>
> >> >> >> >> >> > Sent: Friday, February 05, 2010 7:18 PM
> >> >> >> >> >> > Subject: [emax] Re: Emax Problem Diagnosis
> >> >> >> >> >> >
> >> >> >> >> >> >
> >> >> >> >> >> >
> >> >> >> >> >> > Let me make sure I understand you correctly:
> >> >> >> >> >> >
> >> >> >> >> >> > What you describe is one test: checking that the 2300s are
> >> >> >> >> >> > getting
> >> >> >> >> >> > the
> >> >> >> >> >> correct voltage from the 5v supply? And I should be getting
> >> >> >> >> >> +/-
> >> >> 12V
> >> >> >> >> >> and
> >> >> >> >> >> ground? Are there testpoints visible or is it pretty obvious
> >> >> >> >> >> where
> >> >>
> >> >> >> >> >> to
> >> >> >> >> >> test
> >> >> >> >> >> it?
> >> >> >> >> >> >
> >> >> >> >> >> > Thanks for the quick reply
> >> >> >> >> >> >
> >> >> >> >> >> > --- In emax@yahoogroups.com <emax%40yahoogroups.com><emax%
> 40yahoogroups.com> <emax%
> >> 40yahoogroups.com> <emax%
> >> >> 40yahoogroups.com> <emax%
> >> >> >> 40yahoogroups.com> <emax%
> >> >> >>
> >> >> >> >> 40yahoogroups.com>, "jammie"
> >> >> >> >>
> >> >> >> >> >> <jammie.emma@> wrote:
> >> >> >> >> >> > >
> >> >> >> >> >> > > check the 5 v supply as this is the control voltage of
> >> >> >> >> >> > > the
> >> >> >> filters
> >> >> >> >> >> > >
> >> >> >> >> >> > > the cv control gets sent to 1 of the 2300 for fc 1 for
> >> >> >> >> >> > > resonance
> >> >> >> 1
> >> >> >> >> is
> >> >> >> >> >> for the vca and thhe other is for the dacs for the 8 note
> >> >> polyphony
> >> >> >> >> >> each
> >> >> >> >> >> octal sample and hold circuits for each of the functions
> >> >> >> >> >> > >
> >> >> >> >> >> > > check to see that you are getting the corect voltage for
> >> >> >> operation
> >> >> >> >> of
> >> >> >> >> >> the 2300 or 4051 or smp08
> >> >> >> >> >> > >
> >> >> >> >> >> > > if i was to change them then i would upgrade them to the
> >> >> >> >> >> > > newer
> >> >> >> >> faster
> >> >> >> >> >> slew rate the smp08 are the best and are from analog devices
> >> and
> >> >> >> >> >> are
> >> >> >> >> >> direct
> >> >> >> >> >> replacements for the ssm2300 which are 4051 equivelents made
>
> >> >> >> >> >> by
> >> >> emu
> >> >> >> >> >> > >
> >> >> >> >> >> > > the smp08 they have a faster slew rate and have faster
> >> >> >> >> >> > > transient
> >> >> >> >> >> response with less distortion
> >> >> >> >> >> > >
> >> >> >> >> >> > >
> >> >> >> >> >> > > you should be getting 12vdc vdd and grnd
> >> >> >> >> >> > >
> >> >> >> >> >> > > ----- Original Message -----
> >> >> >> >> >> > > From: preslavl
> >> >> >> >> >> > > To: emax@yahoogroups.com <emax%40yahoogroups.com><emax%
> 40yahoogroups.com> <emax%
> >> 40yahoogroups.com> <emax%
> >> >> 40yahoogroups.com> <emax%
> >> >> >> 40yahoogroups.com> <emax%
> >> >> >> >> 40yahoogroups.com>
> >> >> >> >> >> > > Sent: Friday, February 05, 2010 5:54 PM
> >> >> >> >> >> > > Subject: [emax] Emax Problem Diagnosis
> >> >> >> >> >> > >
> >> >> >> >> >> > >
> >> >> >> >> >> > >
> >> >> >> >> >> > > Hello,
> >> >> >> >> >> > >
> >> >> >> >> >> > > I wanted to see if I can get some help diagnosing the
> >> >> >> >> >> > > problem(s)
> >> >> >> >> >> > > of
> >> >> >> >> >> > > an
> >> >> >> >> >> Emax I i just purchased.
> >> >> >> >> >> > >
> >> >> >> >> >> > > Here are they symptoms:
> >> >> >> >> >> > >
> >> >> >> >> >> > > - No Frequency Cutoff - I calibrated the data slider and
>
> >> >> >> >> >> > > it
> >> >> >> >> registers
> >> >> >> >> >> the frequency cutoff (FC) going up in numbers but you cannot
> >> >> >> >> >> hear
> >> >> >> >> >> any
> >> >> >> >> >> change.
> >> >> >> >> >> > >
> >> >> >> >> >> > > - No Attack in the ADSR or the filter ADSR - cannot hear
>
> >> >> >> >> >> > > an
> >> >> >> >> >> > > increase
> >> >> >> >>
> >> >> >> >> >> > > in
> >> >> >> >> >> attack even when the values increase.
> >> >> >> >> >> > >
> >> >> >> >> >> > > - No Volume - volume slider was calibrated and it seems
> >> >> >> >> >> > > to
> >> >> work
> >> >> >> >> >> > > but
> >> >> >> >> >> moving it up or down does not make a difference...volume
> >> >> >> >> >> seems
> >> >> >> >> >> to
> >> >> >> >> >> be
> >> >> >> >> >> at
> >> >> >> >> >> 100%.
> >> >> >> >> >> > >
> >> >> >> >> >> > > These are pretty much all the symptoms I've notices so
> >> >> >> >> >> > > far.
> >> >> >> >> >> > >
> >> >> >> >> >> > > Things I've covered so far:
> >> >> >> >> >> > >
> >> >> >> >> >> > > - I replaced the 4 SSM 2300 that were in the sampler -
> it
> >> >> >> >> >> > > did
> >> >> >> >> >> > > not
> >> >> >> >> >> > > seem
> >> >> >> >> >> to make ANY difference. I replaced the original chips with
> >> >> >> >> >> ones
> >> >> >> >> >> marked:
> >> >> >> >> >> "SSM2300 8652". I purchased these on eBAY. Could this be the
> >> >> issue?
> >> >> >> >> >> > >
> >> >> >> >> >> > > - I went through the recalibration procedure - no
> change.
> >> >> >> >> >> > >
> >> >> >> >> >> > > - I performed the diagnostic tests inside the Master
> menu
> >> >> >> >> >> > > (8,
> >> >> >> >> >> > > 8,
> >> >> >> >> >> > > YES).
> >> >> >> >> >> ERAM and Bank RAM checked out OK and all other tests seemed
> >> >> >> >> >> to
> >> >> have
> >> >> >> >> >> passed.
> >> >> >> >> >> > >
> >> >> >> >> >> > > Any ideas anyone?
> >> >> >> >> >> > >
> >> >> >> >> >> > > Thank you,
> >> >> >> >> >> > >
> >> >> >> >> >> > > Preslav
> >> >> >> >> >> > >
> >> >> >> >> >> > >
> >> >> >> >> >> > >
> >> >> >> >> >> > >
> >> >> >> >> >> > >
> >> >> >> >> >> > >
> >> >> >> >> >> > >
> ----------------------------------------------------------
> >> >> >> >> >> > >
> >> >> >> >> >> > >
> >> >> >> >> >> > >
> >> >> >> >> >> > > No virus found in this incoming message.
> >> >> >> >> >> > > Checked by AVG - www.avg.com
> >> >> >> >> >> > > Version: 8.5.435 / Virus Database: 271.1.1/2669 -
> Release
> >> >> Date:
> >> >> >> >> >> 02/05/10 07:35:00
> >> >> >> >> >> > >
> >> >> >> >> >> > >
> >> >> >> >> >> > > [Non-text portions of this message have been removed]
> >> >> >> >> >> > >
> >> >> >> >> >> >
> >> >> >> >> >> >
> >> >> >> >> >> >
> >> >> >> >> >> >
> >> >> >> >> >> >
> >> >> >> >> >> >
> >> >> >> >> >> > ----------------------------------------------------------
> >> >> >> >> >> >
> >> >> >> >> >> >
> >> >> >> >> >> >
> >> >> >> >> >> > No virus found in this incoming message.
> >> >> >> >> >> > Checked by AVG - www.avg.com
> >> >> >> >> >> > Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release
> >> >> >> >> >> > Date:
> >> >> >> >> >> > 02/05/10
> >> >> >> >> >> 07:35:00
> >> >> >> >> >> >
> >> >> >> >> >> >
> >> >> >> >> >> > [Non-text portions of this message have been removed]
> >> >> >> >> >> >
> >> >> >> >> >>
> >> >> >> >> >> ----------------------------------------------------------
> >> >> >> >> >>
> >> >> >> >> >> No virus found in this incoming message.
> >> >> >> >> >> Checked by AVG - www.avg.com
> >> >> >> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release
> >> >> >> >> >> Date:
> >> >> >> >> >> 02/05/10
> >> >> >> >> >> 07:35:00
> >> >> >> >> >>
> >> >> >> >> >> [Non-text portions of this message have been removed]
> >> >> >> >> >>
> >> >> >> >> >>
> >> >> >> >> >>
> >> >> >> >> >
> >> >> >> >> >
> >> >> >> >> > [Non-text portions of this message have been removed]
> >> >> >> >> >
> >> >> >> >> >
> >> >> >> >> >
> >> >> >> >> > ------------------------------------
> >> >> >> >> >
> >> >> >> >> > Emax and Emax II User's Group Website
> >> >> >> >> >
> >> >> >> >> > http://www.silveriafamily.comYahoo! Groups Links
> >> >> >> >>
> >> >> >> >> >
> >> >> >> >> >
> >> >> >> >> >
> >> >> >> >>
> >> >> >> >> ----------------------------------------------------------
> >> >> >> >>
> >> >> >> >> No virus found in this incoming message.
> >> >> >> >> Checked by AVG - www.avg.com
> >> >> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release Date:
> >> >> >> >> 02/05/10
> >> >> >> >> 07:35:00
> >> >> >> >>
> >> >> >> >>
> >> >> >> >>
> >> >> >> >
> >> >> >> >
> >> >> >> > [Non-text portions of this message have been removed]
> >> >> >> >
> >> >> >> >
> >> >> >> >
> >> >> >> > ------------------------------------
> >> >> >> >
> >> >> >> > Emax and Emax II User's Group Website
> >> >> >> >
> >> >> >> > http://www.silveriafamily.comYahoo! Groups Links
> >> >> >> >
> >> >> >> >
> >> >> >> >
> >> >> >>
> >> >> >> ----------------------------------------------------------
> >> >> >>
> >> >> >> No virus found in this incoming message.
> >> >> >> Checked by AVG - www.avg.com
> >> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2671 - Release Date:
> >> >> >> 02/06/10
> >> >> >> 07:35:00
> >> >> >>
> >> >> >>
> >> >> >>
> >> >> >
> >> >> >
> >> >> > [Non-text portions of this message have been removed]
> >> >> >
> >> >> >
> >> >> >
> >> >> > ------------------------------------
> >> >> >
> >> >> > Emax and Emax II User's Group Website
> >> >> >
> >> >> > http://www.silveriafamily.comYahoo! Groups Links
> >> >> >
> >> >> >
> >> >> >
> >> >>
> >> >> ----------------------------------------------------------
> >> >>
> >> >> No virus found in this incoming message.
> >> >> Checked by AVG - www.avg.com
> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2675 - Release Date:
> >> >> 02/08/10
> >> >> 07:35:00
> >> >>
> >> >>
> >> >>
> >> >
> >> >
> >> > [Non-text portions of this message have been removed]
> >> >
> >> >
> >> >
> >> > ------------------------------------
> >> >
> >> > Emax and Emax II User's Group Website
> >> >
> >> > http://www.silveriafamily.comYahoo! Groups Links
> >> >
> >> >
> >> >
> >>
> >> ----------------------------------------------------------
> >>
> >> No virus found in this incoming message.
> >> Checked by AVG - www.avg.com
> >> Version: 8.5.435 / Virus Database: 271.1.1/2675 - Release Date: 02/08/10
> >> 07:35:00
> >>
> >>
> >>
> >
> >
> > [Non-text portions of this message have been removed]
> >
> >
> >
> > ------------------------------------
> >
> > Emax and Emax II User's Group Website
> >
> > http://www.silveriafamily.comYahoo! Groups Links
> >
> >
> >
>
> ----------------------------------------------------------
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 8.5.435 / Virus Database: 271.1.1/2676 - Release Date: 02/08/10
> 19:35:00
>
>  
>


[Non-text portions of this message have been removed]

Re: [emax] Re: Emax Problem Diagnosis

2010-02-24 by Preslav Lefterov

Just an update:

After purchasing the AD7524 (link below) from Digikey in the US and
replacing it, my Emax works now. Thanks to Jammie for all the help in the
diagnosis.

Preslav

On Tue, Feb 9, 2010 at 4:30 PM, Preslav Lefterov <plefterov@...>wrote:

> Digikey seems to have them. Would these variations work:
>
> *AD7524* :
> http://search.digikey.com/scripts/DkSearch/dksus.dll?WT.z_header=search_go&lang=en&site=us&keywords=AD7524JNZ-ND&x=0&y=0
> *TL 082:*
> http://search.digikey.com/scripts/DkSearch/dksus.dll?WT.z_header=search_go&lang=en&site=us&keywords=TL082CPNS-ND+&x=15&y=15
>
> I also thought I'd order the SMP08. These are them correct:
> http://cgi.ebay.com/Qty-3-Analog-Devices-AD-SMP08F-SMP08-8-ch-S-H-NEW_W0QQitemZ310061621913QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item48311ce299#ht_891wt_1167?
>
>
> Thanks. Will keep you updated with the progress once I replace these ICs.
>
>
> Preslav
>
> On Tue, Feb 9, 2010 at 1:35 PM, jammie <jammie.emma@...>wrote:
>
>>
>>
>> YOU CAN STILL get them rs or digikey farnell
>>
>> ----- Original Message -----
>> From: "Preslav Lefterov" <plefterov@... <plefterov%40gmail.com>>
>> To: <emax@yahoogroups.com <emax%40yahoogroups.com>>
>> Sent: Tuesday, February 09, 2010 2:02 PM
>> Subject: Re: [emax] Re: Emax Problem Diagnosis
>>
>> > Should I try replacing the AD 7524 and/or the TL082? How hard are these
>> to
>> > find ?
>> >
>> >
>> > Preslav
>> >
>> > On Tue, Feb 9, 2010 at 1:56 AM, jammie <jammie.emma@...<jammie.emma%40blueyonder.co.uk>>
>>
>> > wrote:
>> >
>> >>
>> >>
>> >> yes
>> >>
>> >> it could be a broken cv dac or it could be the opamp the tlo82
>> >>
>> >> ----- Original Message -----
>> >> From: "Preslav Lefterov" <plefterov@... <plefterov%40gmail.com><plefterov%
>> 40gmail.com>>
>> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>> 40yahoogroups.com>>
>> >> Sent: Monday, February 08, 2010 10:01 PM
>> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
>> >>
>> >> > Jammie,
>> >> >
>> >> > Just tested:
>> >> >
>> >> > Preset Definition: Realtime controls: Pedal to FC - nothing; Pedal to
>> >> > Pitch
>> >> > - I hear it modulating the pitch.
>> >> >
>> >> > Then I tried MIDI A to FC:
>> >> >
>> >> > I assigned MIDI A to FC and modulated that from an external source
>> >> > (Cubase).
>> >> > When I assigned Midi A to Pitch it works and modulates the Pitch.
>> When
>> >> > I
>> >> > switch to volume/frequency/pan - I get nothing. Should I be measuring
>>
>> >> > the
>> >> > voltage across pin 3 of the ssm2300s while I'm modulating with MIDI A
>> /
>> >> > Pedal?
>> >> >
>> >> >
>> >> > Preslav
>> >> >
>> >> >
>> >> > On Mon, Feb 8, 2010 at 2:40 PM, jammie
>> >> > <jammie.emma@... <jammie.emma%40blueyonder.co.uk>
>> <jammie.emma%40blueyonder.co.uk>>
>> >>
>> >> > wrote:
>> >> >
>> >> >>
>> >> >>
>> >> >> you are not getting any cv voltage its just set to ov
>> >> >>
>> >> >> that no voltage
>> >> >>
>> >> >> so no voltage is being sent out by the ssm2300
>> >> >>
>> >> >> ov means no resonance no volume no filtercut no pan
>> >> >>
>> >> >> try setting up an external contreol to the filter cutoff to if it
>> will
>> >> >> sweep
>> >> >>
>> >> >> ----- Original Message -----
>> >> >> From: "Preslav Lefterov" <plefterov@...<plefterov%40gmail.com>
>> >> >> <plefterov%40gmail.com><plefterov%
>> >> 40gmail.com>>
>> >> >> To: <emax@...m <emax%40yahoogroups.com> <emax%
>> 40yahoogroups.com> <emax%
>> >> 40yahoogroups.com>>
>> >> >> Sent: Monday, February 08, 2010 7:06 PM
>> >> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
>> >> >>
>> >> >> > Jammie,
>> >> >> >
>> >> >> > Sorry for the delay. Got the readings:
>> >> >> >
>> >> >> > *IC41: *
>> >> >> >
>> >> >> > I have +10V on pin8, and -12V on pin4.
>> >> >> >
>> >> >> > *IC49:*
>> >> >> >
>> >> >> > I have +5V on pin 14
>> >> >> >
>> >> >> > *SSM2300s:*
>> >> >> >
>> >> >> > On all 4 I consistently have the following readings:
>> >> >> >
>> >> >> > pin 7 = -4.87V, pin 16 = +10.0V, pin 3 = 0.00V
>> >> >> >
>> >> >> >
>> >> >> > Any other ideas? You mentioned I should be getting 0-5V on pin 3
>> >> >> > from
>> >> >> > the
>> >> >>
>> >> >> > CV
>> >> >> > voltage on all ssm2300s...how can I test that the voltage goes up
>> to
>> >> 5v
>> >> >> > since now it stays at 0.00v?
>> >> >> >
>> >> >> >
>> >> >> > Thanks,
>> >> >> >
>> >> >> > Preslav
>> >> >> >
>> >> >> >
>> >> >> >
>> >> >> >
>> >> >> > On Sat, Feb 6, 2010 at 4:04 PM, jammie
>> >> >> > <jammie.emma@... <jammie.emma%40blueyonder.co.uk><jammie.emma%
>> 40blueyonder.co.uk>
>> >> <jammie.emma%40blueyonder.co.uk>>
>> >>
>> >> >>
>> >> >> > wrote:
>> >> >> >
>> >> >> >>
>> >> >> >>
>> >> >> >> no pins 8 +10v
>> >> >> >> pins 4 -12v are of off the tl082 ic41
>> >> >> >>
>> >> >> >> pin 3 gnd
>> >> >> >> pin 14 +5v are from the ic49 ad7524
>> >> >> >>
>> >> >> >> i said use pin 3 ground as your reference ground for testing the
>> >> >> >> pins
>> >>
>> >> >> >> on
>> >> >> >> the
>> >> >> >> tl082
>> >> >> >>
>> >> >> >> pin 3 on the ssm2300 is the cv voltage check this to see if you
>> are
>> >> >> >> getting
>> >> >> >>
>> >> >> >> the cv 0-5v
>> >> >> >>
>> >> >> >> the rest of the pins for the ssm2300 are correct
>> >> >> >>
>> >> >> >> ----- Original Message -----
>> >> >> >> From: "Preslav Lefterov"
>> >> >> >> <plefterov@... <plefterov%40gmail.com><plefterov%
>> 40gmail.com>
>> >> >> >> <plefterov%40gmail.com><plefterov%
>> >> >> 40gmail.com>>
>> >> >> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>> 40yahoogroups.com> <emax%
>> >> 40yahoogroups.com> <emax%
>> >> >> 40yahoogroups.com>>
>> >> >> >> Sent: Saturday, February 06, 2010 8:14 PM
>> >> >> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
>> >> >> >>
>> >> >> >> > Jammie,
>> >> >> >> >
>> >> >> >> > Ok let me run through this stuff and make sure I understand
>> >> >> >> > correctly
>> >> >> >> > (I
>> >> >> >> > should be able to do all the tests later today or tomorrow):
>> >> >> >> >
>> >> >> >> > 1. SSM2300s are fed by the *74HCT273* latching circuit. Is this
>>
>> >> >> >> > the
>> >> >> >> > name
>> >> >> >> > of
>> >> >> >> > the actual circuit as per the schematics or is it a specific IC
>>
>> >> >> >> > or
>> >> >> >> > other
>> >> >> >> > component?
>> >> >> >> >
>> >> >> >> >
>> >> >> >> > 2. I need to check the following pins on *IC49 (AD7524): *
>> >> >> >> > *
>> >> >> >> > ----> pin 8 should be +10V
>> >> >> >> > -----> pin 4 should be -12V
>> >> >> >> > -----> pin 3 is GROUND
>> >> >> >> > -----> pin 14 should be +5V
>> >> >> >> >
>> >> >> >> > 3. I need to check the following pins on IC41 (tlo82):
>> >> >> >> > -----> pin 1 should be 0-5V (this is the output to all
>> SSM2300s)
>> >> >> >> >
>> >> >> >> > Which pin on IC41(tlo82) is GROUND?
>> >> >> >> >
>> >> >> >> > 4. I need to check the voltages on these pins on all SSM2300s:
>> >> >> >> >
>> >> >> >> > ----> pin 7 should be -5V
>> >> >> >> > ----> pin 8 is GROUND
>> >> >> >> > ----> pin 16 should be +10V
>> >> >> >> >
>> >> >> >> > 5. ICil327 is the -5V regulator, so if I am nto getting this
>> >> voltage
>> >> >> to
>> >> >> >> > the
>> >> >> >> > SSM2300s I can try replacing this?
>> >> >> >> >
>> >> >> >> > 6. Transistor TIP29 / QQ306 is the +10V regulator. It is
>> attached
>> >> to
>> >> >> >> > a
>> >> >> >> > heatsink ZE323. If I am not getting +10V I can try replacing
>> this
>> >> >> >> > transistor?
>> >> >> >> >
>> >> >> >> >
>> >> >> >> > Just wanted to summarize your instructions. I will check all
>> this
>> >> >> stuff
>> >> >> >> as
>> >> >> >> > soon as I get to the studio (there is a snowstorm here and my
>> car
>> >> is
>> >> >> >> stuck
>> >> >> >> > currently).
>> >> >> >> >
>> >> >> >> >
>> >> >> >> > Thank you for guiding me through this again.
>> >> >> >> >
>> >> >> >> >
>> >> >> >> > Preslav
>> >> >> >> >
>> >> >> >> >
>> >> >> >> >
>> >> >> >> > *
>> >> >> >> >
>> >> >> >> > On Sat, Feb 6, 2010 at 10:26 AM, jammie
>> >> >> >> > <jammie.emma@... <jammie.emma%40blueyonder.co.uk><jammie.emma%
>> 40blueyonder.co.uk>
>> >> >> >> > <jammie.emma%40blueyonder.co.uk><jammie.emma%
>> >>
>> >> >> 40blueyonder.co.uk>>wrote:
>> >> >>
>> >> >> >> >
>> >> >> >> >>
>> >> >> >> >>
>> >> >> >> >> the -5v regulator is ic il327
>> >> >> >> >>
>> >> >> >> >> the tip29 npn power transister does the 10v it is qq306 it is
>> >> >> attached
>> >> >> >> to
>> >> >> >> >> t0-220 heatsink ze323
>> >> >> >> >>
>> >> >> >> >> ----- Original Message -----
>> >> >> >> >> From: "Preslav Lefterov"
>> >> >> >> >> <plefterov@gmail.com <plefterov%40gmail.com> <plefterov%
>> 40gmail.com><plefterov%
>> >> 40gmail.com>
>> >> >> >> >> <plefterov%40gmail.com><plefterov%
>> >> >> >> 40gmail.com>>
>> >> >> >> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>> 40yahoogroups.com> <emax%
>> >> 40yahoogroups.com> <emax%
>> >> >> 40yahoogroups.com> <emax%
>> >> >> >> 40yahoogroups.com>>
>> >> >> >> >> Sent: Saturday, February 06, 2010 1:35 AM
>> >> >> >> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
>> >> >> >> >>
>> >> >> >> >> > Thanks for your help. Here are the readings:
>> >> >> >> >> >
>> >> >> >> >> > OR/GR = 12.48V
>> >> >> >> >> > YE/GR = 5.0V
>> >> >> >> >> > PU/GR = 12.18 (if i measure with red probe on green wire and
>> >> >> >> >> > black
>> >> >> >> >> > probe
>> >> >> >> >> > on
>> >> >> >> >> > the purple) or -12.18V (if I measure with the red probe on
>> the
>> >> >> >> >> > purple
>> >> >> >> >> > and
>> >> >> >> >> > black probe on the green)
>> >> >> >> >> >
>> >> >> >> >> > The floppy drive works perfectly...it loads the OS and and
>> >> >> >> >> > samples/presets.
>> >> >> >> >> >
>> >> >> >> >> > I appreciate your time.
>> >> >> >> >> >
>> >> >> >> >> > Preslav
>> >> >> >> >> >
>> >> >> >> >> > On Fri, Feb 5, 2010 at 7:17 PM, jammie
>> >> >> >> >> > <jammie.emma@...<jammie.emma%40blueyonder.co.uk><jammie.emma%
>> 40blueyonder.co.uk>
>> >> >> >> >> > <jammie.emma%40blueyonder.co.uk><jammie.emma%
>> >> >> 40blueyonder.co.uk>
>> >> >> >> <jammie.emma%40blueyonder.co.uk>>
>> >> >> >>
>> >> >> >> >>
>> >> >> >> >> > wrote:
>> >> >> >> >> >
>> >> >> >> >> >>
>> >> >> >> >> >>
>> >> >> >> >> >>
>> >> >> >> >> >> test each wire conection
>> >> >> >> >> >>
>> >> >> >> >> >> orange and green wires red probe on the orange black probe
>> on
>> >> >> >> >> >> the
>> >> >> >> >> >> green
>> >> >> >> >> >> for
>> >> >> >> >> >> +12v
>> >> >> >> >> >>
>> >> >> >> >> >> yellow and green wires red probe for yellow wire black
>> probe
>> >> >> >> >> >> on
>> >> >> the
>> >> >> >> >> green
>> >> >> >> >> >> wire for +5v
>> >> >> >> >> >>
>> >> >> >> >> >> purple and green wires red probe on the green wire black
>> >> >> >> >> >> probe
>> >> >> >> >> >> on
>> >> >> >> >> >> the
>> >> >> >> >> >> purple wire for -12v
>> >> >> >> >> >>
>> >> >> >> >> >> test this for me and give me your readings
>> >> >> >> >> >>
>> >> >> >> >> >> does the floppy drive work as this is the 5v line
>> >> >> >> >> >>
>> >> >> >> >> >> the 5 v on the mother boards for other circuits gets its 5v
>> >> from
>> >> >> >> power
>> >> >> >> >> >> regulators of the +12v supply
>> >> >> >> >> >>
>> >> >> >> >> >> ----- Original Message -----
>> >> >> >> >> >> From: preslavl
>> >> >> >> >> >> To: emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>> 40yahoogroups.com> <emax%
>> >> 40yahoogroups.com> <emax%
>> >> >> 40yahoogroups.com> <emax%
>> >> >> >> 40yahoogroups.com> <emax%
>> >> >> >> >> 40yahoogroups.com>
>> >> >> >> >> >> Sent: Friday, February 05, 2010 9:37 PM
>> >> >> >> >> >> Subject: [emax] Re: Emax Problem Diagnosis
>> >> >> >> >> >>
>> >> >> >> >> >> So I tried testing the voltages at the connector that goes
>> >> >> >> >> >> between
>> >> >> >> the
>> >> >> >> >> PS
>> >> >> >> >> >> board and the CPU Board. I tested on the PS side. If I
>> follow
>> >> >> >> >> >> the
>> >> >> >> >> >> color
>> >> >> >> >> >> coding I read in a message on here somewhere: Yellow (+5V),
>> >> >> >> >> >> Orange
>> >> >> >> >> >> (+12V),
>> >> >> >> >> >> Purple (-12V), and Green (0V/Ground).
>> >> >> >> >> >>
>> >> >> >> >> >> I get nowhere near those voltages...now I might be doing
>> this
>> >> >> >> >> >> completely
>> >> >> >> >> >> wrong, but I get +12V at the Green wire, and 0v at the
>> Yellow
>> >> >> >> >> >> (where
>> >> >> >> I
>> >> >> >> >> >> should be getting +5V). I also get +17V at the Orange
>> wire...
>> >> >> >> >> >>
>> >> >> >> >> >> Again, I'm not sure if I'm testing at the correct points.
>> By
>> >> the
>> >> >> >> >> >> way
>> >> >> >> >> >> I'm
>> >> >> >> >> >> still getting sound out of the Emax so it has not exploded
>> in
>> >> my
>> >> >> >> hands
>> >> >> >> >> as
>> >> >> >> >> >> of
>> >> >> >> >> >> yet.
>> >> >> >> >> >>
>> >> >> >> >> >> --- In emax@yahoogroups.com <emax%40yahoogroups.com><emax%
>> 40yahoogroups.com> <emax%
>> >> 40yahoogroups.com> <emax%
>> >> >> 40yahoogroups.com> <emax%
>> >> >> >> 40yahoogroups.com> <emax%
>> >> >> >>
>> >> >> >> >> 40yahoogroups.com>, "jammie"
>> >> >> >> >>
>> >> >> >> >> >> <jammie.emma@...> wrote:
>> >> >> >> >> >> >
>> >> >> >> >> >> > right the cv (control voltages for the filter cutoff vca
>> >> >> >> >> >> > and
>> >> >> >> >> >> > resonance
>> >> >> >> >> >> are sent by the cv circuit ranging from 0v-5v
>> >> >> >> >> >> >
>> >> >> >> >> >> > which is sent by the cpu for control off the filter
>> >> >> >> >> >> > depending
>> >>
>> >> >> >> >> >> > on
>> >> >> >> >> >> > envelope
>> >> >> >> >> >> settings or external controllers
>> >> >> >> >> >> >
>> >> >> >> >> >> > now the ssm2300 are sample and hold circuits they send
>> out
>> >> the
>> >> >> >> >> >> > digital
>> >> >> >> >> >> info into analog voltages which are sampled then
>> transmitted
>> >> >> >> >> >> as
>> >>
>> >> >> >> >> >> a
>> >> >> >> >> voltage
>> >> >> >> >> >> in
>> >> >> >> >> >> the range of 0-5v 0v = 0 resonance 5v = full resonance
>> >> >> >> >> >> >
>> >> >> >> >> >> > or cut off or vca volume
>> >> >> >> >> >> >
>> >> >> >> >> >> > thats what the first 3 ssm2300 deal with
>> >> >> >> >> >> >
>> >> >> >> >> >> > the 4th ssm2300 deals with the digital signal comming
>> from
>> >> the
>> >> >> >> >> >> > dacs
>> >> >> >> >> >> > this
>> >> >> >> >> >> is the samples that are transmitted from the ram to the
>> dacs
>> >> and
>> >> >> to
>> >> >> >> >> >> the
>> >> >> >> >> >> samplre and hold circuits which send out voltages 0-5v
>> which
>> >> >> >> corispond
>> >> >> >> >> to
>> >> >> >> >> >> the digital sound into analog format
>> >> >> >> >> >> >
>> >> >> >> >> >> > now if you are getting sound out then the ssm2300 for
>> that
>> >> >> >> >> >> > part
>> >> >> >> >> >> > of
>> >> >> >> >> >> > the
>> >> >> >> >> >> circuit is working it seems to be the cv circuit that you
>> are
>> >> >> >> >> >> having
>> >> >> >> a
>> >> >> >> >> >> problem with not being sent into the ssm2300 to be made
>> into
>> >> the
>> >> >> >> >> >> analog
>> >> >> >> >> >> control voltages
>> >> >> >> >> >> >
>> >> >> >> >> >> > ----- Original Message -----
>> >> >> >> >> >> > From: preslavl
>> >> >> >> >> >> > To: emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>> 40yahoogroups.com> <emax%
>> >> 40yahoogroups.com> <emax%
>> >> >> 40yahoogroups.com> <emax%
>> >> >> >> 40yahoogroups.com> <emax%
>> >> >> >> >> 40yahoogroups.com>
>> >> >> >> >> >> > Sent: Friday, February 05, 2010 7:18 PM
>> >> >> >> >> >> > Subject: [emax] Re: Emax Problem Diagnosis
>> >> >> >> >> >> >
>> >> >> >> >> >> >
>> >> >> >> >> >> >
>> >> >> >> >> >> > Let me make sure I understand you correctly:
>> >> >> >> >> >> >
>> >> >> >> >> >> > What you describe is one test: checking that the 2300s
>> are
>> >> >> >> >> >> > getting
>> >> >> >> >> >> > the
>> >> >> >> >> >> correct voltage from the 5v supply? And I should be getting
>>
>> >> >> >> >> >> +/-
>> >> >> 12V
>> >> >> >> >> >> and
>> >> >> >> >> >> ground? Are there testpoints visible or is it pretty
>> obvious
>> >> >> >> >> >> where
>> >> >>
>> >> >> >> >> >> to
>> >> >> >> >> >> test
>> >> >> >> >> >> it?
>> >> >> >> >> >> >
>> >> >> >> >> >> > Thanks for the quick reply
>> >> >> >> >> >> >
>> >> >> >> >> >> > --- In emax@yahoogroups.com <emax%40yahoogroups.com><emax%
>> 40yahoogroups.com> <emax%
>> >> 40yahoogroups.com> <emax%
>> >> >> 40yahoogroups.com> <emax%
>> >> >> >> 40yahoogroups.com> <emax%
>> >> >> >>
>> >> >> >> >> 40yahoogroups.com>, "jammie"
>> >> >> >> >>
>> >> >> >> >> >> <jammie.emma@> wrote:
>> >> >> >> >> >> > >
>> >> >> >> >> >> > > check the 5 v supply as this is the control voltage of
>> >> >> >> >> >> > > the
>> >> >> >> filters
>> >> >> >> >> >> > >
>> >> >> >> >> >> > > the cv control gets sent to 1 of the 2300 for fc 1 for
>> >> >> >> >> >> > > resonance
>> >> >> >> 1
>> >> >> >> >> is
>> >> >> >> >> >> for the vca and thhe other is for the dacs for the 8 note
>> >> >> polyphony
>> >> >> >> >> >> each
>> >> >> >> >> >> octal sample and hold circuits for each of the functions
>> >> >> >> >> >> > >
>> >> >> >> >> >> > > check to see that you are getting the corect voltage
>> for
>> >> >> >> operation
>> >> >> >> >> of
>> >> >> >> >> >> the 2300 or 4051 or smp08
>> >> >> >> >> >> > >
>> >> >> >> >> >> > > if i was to change them then i would upgrade them to
>> the
>> >> >> >> >> >> > > newer
>> >> >> >> >> faster
>> >> >> >> >> >> slew rate the smp08 are the best and are from analog
>> devices
>> >> and
>> >> >> >> >> >> are
>> >> >> >> >> >> direct
>> >> >> >> >> >> replacements for the ssm2300 which are 4051 equivelents
>> made
>> >> >> >> >> >> by
>> >> >> emu
>> >> >> >> >> >> > >
>> >> >> >> >> >> > > the smp08 they have a faster slew rate and have faster
>> >> >> >> >> >> > > transient
>> >> >> >> >> >> response with less distortion
>> >> >> >> >> >> > >
>> >> >> >> >> >> > >
>> >> >> >> >> >> > > you should be getting 12vdc vdd and grnd
>> >> >> >> >> >> > >
>> >> >> >> >> >> > > ----- Original Message -----
>> >> >> >> >> >> > > From: preslavl
>> >> >> >> >> >> > > To: emax@yahoogroups.com <emax%40yahoogroups.com><emax%
>> 40yahoogroups.com> <emax%
>> >> 40yahoogroups.com> <emax%
>> >> >> 40yahoogroups.com> <emax%
>> >> >> >> 40yahoogroups.com> <emax%
>> >> >> >> >> 40yahoogroups.com>
>> >> >> >> >> >> > > Sent: Friday, February 05, 2010 5:54 PM
>> >> >> >> >> >> > > Subject: [emax] Emax Problem Diagnosis
>> >> >> >> >> >> > >
>> >> >> >> >> >> > >
>> >> >> >> >> >> > >
>> >> >> >> >> >> > > Hello,
>> >> >> >> >> >> > >
>> >> >> >> >> >> > > I wanted to see if I can get some help diagnosing the
>> >> >> >> >> >> > > problem(s)
>> >> >> >> >> >> > > of
>> >> >> >> >> >> > > an
>> >> >> >> >> >> Emax I i just purchased.
>> >> >> >> >> >> > >
>> >> >> >> >> >> > > Here are they symptoms:
>> >> >> >> >> >> > >
>> >> >> >> >> >> > > - No Frequency Cutoff - I calibrated the data slider
>> and
>> >> >> >> >> >> > > it
>> >> >> >> >> registers
>> >> >> >> >> >> the frequency cutoff (FC) going up in numbers but you
>> cannot
>> >> >> >> >> >> hear
>> >> >> >> >> >> any
>> >> >> >> >> >> change.
>> >> >> >> >> >> > >
>> >> >> >> >> >> > > - No Attack in the ADSR or the filter ADSR - cannot
>> hear
>> >> >> >> >> >> > > an
>> >> >> >> >> >> > > increase
>> >> >> >> >>
>> >> >> >> >> >> > > in
>> >> >> >> >> >> attack even when the values increase.
>> >> >> >> >> >> > >
>> >> >> >> >> >> > > - No Volume - volume slider was calibrated and it seems
>>
>> >> >> >> >> >> > > to
>> >> >> work
>> >> >> >> >> >> > > but
>> >> >> >> >> >> moving it up or down does not make a difference...volume
>> >> >> >> >> >> seems
>> >> >> >> >> >> to
>> >> >> >> >> >> be
>> >> >> >> >> >> at
>> >> >> >> >> >> 100%.
>> >> >> >> >> >> > >
>> >> >> >> >> >> > > These are pretty much all the symptoms I've notices so
>> >> >> >> >> >> > > far.
>> >> >> >> >> >> > >
>> >> >> >> >> >> > > Things I've covered so far:
>> >> >> >> >> >> > >
>> >> >> >> >> >> > > - I replaced the 4 SSM 2300 that were in the sampler -
>> it
>> >> >> >> >> >> > > did
>> >> >> >> >> >> > > not
>> >> >> >> >> >> > > seem
>> >> >> >> >> >> to make ANY difference. I replaced the original chips with
>> >> >> >> >> >> ones
>> >> >> >> >> >> marked:
>> >> >> >> >> >> "SSM2300 8652". I purchased these on eBAY. Could this be
>> the
>> >> >> issue?
>> >> >> >> >> >> > >
>> >> >> >> >> >> > > - I went through the recalibration procedure - no
>> change.
>> >> >> >> >> >> > >
>> >> >> >> >> >> > > - I performed the diagnostic tests inside the Master
>> menu
>> >> >> >> >> >> > > (8,
>> >> >> >> >> >> > > 8,
>> >> >> >> >> >> > > YES).
>> >> >> >> >> >> ERAM and Bank RAM checked out OK and all other tests seemed
>>
>> >> >> >> >> >> to
>> >> >> have
>> >> >> >> >> >> passed.
>> >> >> >> >> >> > >
>> >> >> >> >> >> > > Any ideas anyone?
>> >> >> >> >> >> > >
>> >> >> >> >> >> > > Thank you,
>> >> >> >> >> >> > >
>> >> >> >> >> >> > > Preslav
>> >> >> >> >> >> > >
>> >> >> >> >> >> > >
>> >> >> >> >> >> > >
>> >> >> >> >> >> > >
>> >> >> >> >> >> > >
>> >> >> >> >> >> > >
>> >> >> >> >> >> > >
>> ----------------------------------------------------------
>> >> >> >> >> >> > >
>> >> >> >> >> >> > >
>> >> >> >> >> >> > >
>> >> >> >> >> >> > > No virus found in this incoming message.
>> >> >> >> >> >> > > Checked by AVG - www.avg.com
>> >> >> >> >> >> > > Version: 8.5.435 / Virus Database: 271.1.1/2669 -
>> Release
>> >> >> Date:
>> >> >> >> >> >> 02/05/10 07:35:00
>> >> >> >> >> >> > >
>> >> >> >> >> >> > >
>> >> >> >> >> >> > > [Non-text portions of this message have been removed]
>> >> >> >> >> >> > >
>> >> >> >> >> >> >
>> >> >> >> >> >> >
>> >> >> >> >> >> >
>> >> >> >> >> >> >
>> >> >> >> >> >> >
>> >> >> >> >> >> >
>> >> >> >> >> >> >
>> ----------------------------------------------------------
>> >> >> >> >> >> >
>> >> >> >> >> >> >
>> >> >> >> >> >> >
>> >> >> >> >> >> > No virus found in this incoming message.
>> >> >> >> >> >> > Checked by AVG - www.avg.com
>> >> >> >> >> >> > Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release
>> >> >> >> >> >> > Date:
>> >> >> >> >> >> > 02/05/10
>> >> >> >> >> >> 07:35:00
>> >> >> >> >> >> >
>> >> >> >> >> >> >
>> >> >> >> >> >> > [Non-text portions of this message have been removed]
>> >> >> >> >> >> >
>> >> >> >> >> >>
>> >> >> >> >> >> ----------------------------------------------------------
>> >> >> >> >> >>
>> >> >> >> >> >> No virus found in this incoming message.
>> >> >> >> >> >> Checked by AVG - www.avg.com
>> >> >> >> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release
>> >> >> >> >> >> Date:
>> >> >> >> >> >> 02/05/10
>> >> >> >> >> >> 07:35:00
>> >> >> >> >> >>
>> >> >> >> >> >> [Non-text portions of this message have been removed]
>> >> >> >> >> >>
>> >> >> >> >> >>
>> >> >> >> >> >>
>> >> >> >> >> >
>> >> >> >> >> >
>> >> >> >> >> > [Non-text portions of this message have been removed]
>> >> >> >> >> >
>> >> >> >> >> >
>> >> >> >> >> >
>> >> >> >> >> > ------------------------------------
>> >> >> >> >> >
>> >> >> >> >> > Emax and Emax II User's Group Website
>> >> >> >> >> >
>> >> >> >> >> > http://www.silveriafamily.comYahoo! Groups Links
>> >> >> >> >>
>> >> >> >> >> >
>> >> >> >> >> >
>> >> >> >> >> >
>> >> >> >> >>
>> >> >> >> >> ----------------------------------------------------------
>> >> >> >> >>
>> >> >> >> >> No virus found in this incoming message.
>> >> >> >> >> Checked by AVG - www.avg.com
>> >> >> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release
>> Date:
>> >> >> >> >> 02/05/10
>> >> >> >> >> 07:35:00
>> >> >> >> >>
>> >> >> >> >>
>> >> >> >> >>
>> >> >> >> >
>> >> >> >> >
>> >> >> >> > [Non-text portions of this message have been removed]
>> >> >> >> >
>> >> >> >> >
>> >> >> >> >
>> >> >> >> > ------------------------------------
>> >> >> >> >
>> >> >> >> > Emax and Emax II User's Group Website
>> >> >> >> >
>> >> >> >> > http://www.silveriafamily.comYahoo! Groups Links
>> >> >> >> >
>> >> >> >> >
>> >> >> >> >
>> >> >> >>
>> >> >> >> ----------------------------------------------------------
>> >> >> >>
>> >> >> >> No virus found in this incoming message.
>> >> >> >> Checked by AVG - www.avg.com
>> >> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2671 - Release Date:
>> >> >> >> 02/06/10
>> >> >> >> 07:35:00
>> >> >> >>
>> >> >> >>
>> >> >> >>
>> >> >> >
>> >> >> >
>> >> >> > [Non-text portions of this message have been removed]
>> >> >> >
>> >> >> >
>> >> >> >
>> >> >> > ------------------------------------
>> >> >> >
>> >> >> > Emax and Emax II User's Group Website
>> >> >> >
>> >> >> > http://www.silveriafamily.comYahoo! Groups Links
>> >> >> >
>> >> >> >
>> >> >> >
>> >> >>
>> >> >> ----------------------------------------------------------
>> >> >>
>> >> >> No virus found in this incoming message.
>> >> >> Checked by AVG - www.avg.com
>> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2675 - Release Date:
>> >> >> 02/08/10
>> >> >> 07:35:00
>> >> >>
>> >> >>
>> >> >>
>> >> >
>> >> >
>> >> > [Non-text portions of this message have been removed]
>> >> >
>> >> >
>> >> >
>> >> > ------------------------------------
>> >> >
>> >> > Emax and Emax II User's Group Website
>> >> >
>> >> > http://www.silveriafamily.comYahoo! Groups Links
>> >> >
>> >> >
>> >> >
>> >>
>> >> ----------------------------------------------------------
>> >>
>> >> No virus found in this incoming message.
>> >> Checked by AVG - www.avg.com
>> >> Version: 8.5.435 / Virus Database: 271.1.1/2675 - Release Date:
>> 02/08/10
>> >> 07:35:00
>> >>
>> >>
>> >>
>> >
>> >
>> > [Non-text portions of this message have been removed]
>> >
>> >
>> >
>> > ------------------------------------
>> >
>> > Emax and Emax II User's Group Website
>> >
>> > http://www.silveriafamily.comYahoo! Groups Links
>> >
>> >
>> >
>>
>> ----------------------------------------------------------
>>
>> No virus found in this incoming message.
>> Checked by AVG - www.avg.com
>> Version: 8.5.435 / Virus Database: 271.1.1/2676 - Release Date: 02/08/10
>> 19:35:00
>>
>>  
>>
>
>


[Non-text portions of this message have been removed]

Re: [emax] Re: Emax Problem Diagnosis

2010-02-24 by jammie

yes those smp08 are fantastic very fast slew rate the envelopes will be 
snappier as the sample and hold responde quicker to the transients

so it was the 8bit dac for the cv circuit that was at fault there you go 
just goes to show what 20 years of synth servicing does pay off i was glad 
to of helped
 that fix by a repair tech in usa would have cost you $70 per hour

also as see your upgrading chips the tlo82 can be upgraded to to tle7072 i 
have fitted these for the sq80 sq1 eps sampler and the dss1 from the 2448 op 
amps there clean and have a great headroom with out distrortion they are 
direct drop ins as they are now the replacement chip for the tloxx series
Show quoted textHide quoted text
----- Original Message ----- 
From: "Preslav Lefterov" <plefterov@...>
To: <emax@yahoogroups.com>
Sent: Wednesday, February 24, 2010 2:39 PM
Subject: Re: [emax] Re: Emax Problem Diagnosis


> Just an update:
>
> After purchasing the AD7524 (link below) from Digikey in the US and
> replacing it, my Emax works now. Thanks to Jammie for all the help in the
> diagnosis.
>
> Preslav
>
> On Tue, Feb 9, 2010 at 4:30 PM, Preslav Lefterov 
> <plefterov@...>wrote:
>
>> Digikey seems to have them. Would these variations work:
>>
>> *AD7524* :
>> http://search.digikey.com/scripts/DkSearch/dksus.dll?WT.z_header=search_go&lang=en&site=us&keywords=AD7524JNZ-ND&x=0&y=0
>> *TL 082:*
>> http://search.digikey.com/scripts/DkSearch/dksus.dll?WT.z_header=search_go&lang=en&site=us&keywords=TL082CPNS-ND+&x=15&y=15
>>
>> I also thought I'd order the SMP08. These are them correct:
>> http://cgi.ebay.com/Qty-3-Analog-Devices-AD-SMP08F-SMP08-8-ch-S-H-NEW_W0QQitemZ310061621913QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item48311ce299#ht_891wt_1167?
>>
>>
>> Thanks. Will keep you updated with the progress once I replace these ICs.
>>
>>
>> Preslav
>>
>> On Tue, Feb 9, 2010 at 1:35 PM, jammie 
>> <jammie.emma@...>wrote:
>>
>>>
>>>
>>> YOU CAN STILL get them rs or digikey farnell
>>>
>>> ----- Original Message -----
>>> From: "Preslav Lefterov" <plefterov@... <plefterov%40gmail.com>>
>>> To: <emax@yahoogroups.com <emax%40yahoogroups.com>>
>>> Sent: Tuesday, February 09, 2010 2:02 PM
>>> Subject: Re: [emax] Re: Emax Problem Diagnosis
>>>
>>> > Should I try replacing the AD 7524 and/or the TL082? How hard are 
>>> > these
>>> to
>>> > find ?
>>> >
>>> >
>>> > Preslav
>>> >
>>> > On Tue, Feb 9, 2010 at 1:56 AM, jammie 
>>> > <jammie.emma@...<jammie.emma%40blueyonder.co.uk>>
>>>
>>> > wrote:
>>> >
>>> >>
>>> >>
>>> >> yes
>>> >>
>>> >> it could be a broken cv dac or it could be the opamp the tlo82
>>> >>
>>> >> ----- Original Message -----
>>> >> From: "Preslav Lefterov" <plefterov@... 
>>> >> <plefterov%40gmail.com><plefterov%
>>> 40gmail.com>>
>>> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>>> 40yahoogroups.com>>
>>> >> Sent: Monday, February 08, 2010 10:01 PM
>>> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
>>> >>
>>> >> > Jammie,
>>> >> >
>>> >> > Just tested:
>>> >> >
>>> >> > Preset Definition: Realtime controls: Pedal to FC - nothing; Pedal 
>>> >> > to
>>> >> > Pitch
>>> >> > - I hear it modulating the pitch.
>>> >> >
>>> >> > Then I tried MIDI A to FC:
>>> >> >
>>> >> > I assigned MIDI A to FC and modulated that from an external source
>>> >> > (Cubase).
>>> >> > When I assigned Midi A to Pitch it works and modulates the Pitch.
>>> When
>>> >> > I
>>> >> > switch to volume/frequency/pan - I get nothing. Should I be 
>>> >> > measuring
>>>
>>> >> > the
>>> >> > voltage across pin 3 of the ssm2300s while I'm modulating with MIDI 
>>> >> > A
>>> /
>>> >> > Pedal?
>>> >> >
>>> >> >
>>> >> > Preslav
>>> >> >
>>> >> >
>>> >> > On Mon, Feb 8, 2010 at 2:40 PM, jammie
>>> >> > <jammie.emma@... <jammie.emma%40blueyonder.co.uk>
>>> <jammie.emma%40blueyonder.co.uk>>
>>> >>
>>> >> > wrote:
>>> >> >
>>> >> >>
>>> >> >>
>>> >> >> you are not getting any cv voltage its just set to ov
>>> >> >>
>>> >> >> that no voltage
>>> >> >>
>>> >> >> so no voltage is being sent out by the ssm2300
>>> >> >>
>>> >> >> ov means no resonance no volume no filtercut no pan
>>> >> >>
>>> >> >> try setting up an external contreol to the filter cutoff to if it
>>> will
>>> >> >> sweep
>>> >> >>
>>> >> >> ----- Original Message -----
>>> >> >> From: "Preslav Lefterov" 
>>> >> >> <plefterov@...<plefterov%40gmail.com>
>>> >> >> <plefterov%40gmail.com><plefterov%
>>> >> 40gmail.com>>
>>> >> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>>> 40yahoogroups.com> <emax%
>>> >> 40yahoogroups.com>>
>>> >> >> Sent: Monday, February 08, 2010 7:06 PM
>>> >> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
>>> >> >>
>>> >> >> > Jammie,
>>> >> >> >
>>> >> >> > Sorry for the delay. Got the readings:
>>> >> >> >
>>> >> >> > *IC41: *
>>> >> >> >
>>> >> >> > I have +10V on pin8, and -12V on pin4.
>>> >> >> >
>>> >> >> > *IC49:*
>>> >> >> >
>>> >> >> > I have +5V on pin 14
>>> >> >> >
>>> >> >> > *SSM2300s:*
>>> >> >> >
>>> >> >> > On all 4 I consistently have the following readings:
>>> >> >> >
>>> >> >> > pin 7 = -4.87V, pin 16 = +10.0V, pin 3 = 0.00V
>>> >> >> >
>>> >> >> >
>>> >> >> > Any other ideas? You mentioned I should be getting 0-5V on pin 3
>>> >> >> > from
>>> >> >> > the
>>> >> >>
>>> >> >> > CV
>>> >> >> > voltage on all ssm2300s...how can I test that the voltage goes 
>>> >> >> > up
>>> to
>>> >> 5v
>>> >> >> > since now it stays at 0.00v?
>>> >> >> >
>>> >> >> >
>>> >> >> > Thanks,
>>> >> >> >
>>> >> >> > Preslav
>>> >> >> >
>>> >> >> >
>>> >> >> >
>>> >> >> >
>>> >> >> > On Sat, Feb 6, 2010 at 4:04 PM, jammie
>>> >> >> > <jammie.emma@... 
>>> >> >> > <jammie.emma%40blueyonder.co.uk><jammie.emma%
>>> 40blueyonder.co.uk>
>>> >> <jammie.emma%40blueyonder.co.uk>>
>>> >>
>>> >> >>
>>> >> >> > wrote:
>>> >> >> >
>>> >> >> >>
>>> >> >> >>
>>> >> >> >> no pins 8 +10v
>>> >> >> >> pins 4 -12v are of off the tl082 ic41
>>> >> >> >>
>>> >> >> >> pin 3 gnd
>>> >> >> >> pin 14 +5v are from the ic49 ad7524
>>> >> >> >>
>>> >> >> >> i said use pin 3 ground as your reference ground for testing 
>>> >> >> >> the
>>> >> >> >> pins
>>> >>
>>> >> >> >> on
>>> >> >> >> the
>>> >> >> >> tl082
>>> >> >> >>
>>> >> >> >> pin 3 on the ssm2300 is the cv voltage check this to see if you
>>> are
>>> >> >> >> getting
>>> >> >> >>
>>> >> >> >> the cv 0-5v
>>> >> >> >>
>>> >> >> >> the rest of the pins for the ssm2300 are correct
>>> >> >> >>
>>> >> >> >> ----- Original Message -----
>>> >> >> >> From: "Preslav Lefterov"
>>> >> >> >> <plefterov@... <plefterov%40gmail.com><plefterov%
>>> 40gmail.com>
>>> >> >> >> <plefterov%40gmail.com><plefterov%
>>> >> >> 40gmail.com>>
>>> >> >> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>>> 40yahoogroups.com> <emax%
>>> >> 40yahoogroups.com> <emax%
>>> >> >> 40yahoogroups.com>>
>>> >> >> >> Sent: Saturday, February 06, 2010 8:14 PM
>>> >> >> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
>>> >> >> >>
>>> >> >> >> > Jammie,
>>> >> >> >> >
>>> >> >> >> > Ok let me run through this stuff and make sure I understand
>>> >> >> >> > correctly
>>> >> >> >> > (I
>>> >> >> >> > should be able to do all the tests later today or tomorrow):
>>> >> >> >> >
>>> >> >> >> > 1. SSM2300s are fed by the *74HCT273* latching circuit. Is 
>>> >> >> >> > this
>>>
>>> >> >> >> > the
>>> >> >> >> > name
>>> >> >> >> > of
>>> >> >> >> > the actual circuit as per the schematics or is it a specific 
>>> >> >> >> > IC
>>>
>>> >> >> >> > or
>>> >> >> >> > other
>>> >> >> >> > component?
>>> >> >> >> >
>>> >> >> >> >
>>> >> >> >> > 2. I need to check the following pins on *IC49 (AD7524): *
>>> >> >> >> > *
>>> >> >> >> > ----> pin 8 should be +10V
>>> >> >> >> > -----> pin 4 should be -12V
>>> >> >> >> > -----> pin 3 is GROUND
>>> >> >> >> > -----> pin 14 should be +5V
>>> >> >> >> >
>>> >> >> >> > 3. I need to check the following pins on IC41 (tlo82):
>>> >> >> >> > -----> pin 1 should be 0-5V (this is the output to all
>>> SSM2300s)
>>> >> >> >> >
>>> >> >> >> > Which pin on IC41(tlo82) is GROUND?
>>> >> >> >> >
>>> >> >> >> > 4. I need to check the voltages on these pins on all 
>>> >> >> >> > SSM2300s:
>>> >> >> >> >
>>> >> >> >> > ----> pin 7 should be -5V
>>> >> >> >> > ----> pin 8 is GROUND
>>> >> >> >> > ----> pin 16 should be +10V
>>> >> >> >> >
>>> >> >> >> > 5. ICil327 is the -5V regulator, so if I am nto getting this
>>> >> voltage
>>> >> >> to
>>> >> >> >> > the
>>> >> >> >> > SSM2300s I can try replacing this?
>>> >> >> >> >
>>> >> >> >> > 6. Transistor TIP29 / QQ306 is the +10V regulator. It is
>>> attached
>>> >> to
>>> >> >> >> > a
>>> >> >> >> > heatsink ZE323. If I am not getting +10V I can try replacing
>>> this
>>> >> >> >> > transistor?
>>> >> >> >> >
>>> >> >> >> >
>>> >> >> >> > Just wanted to summarize your instructions. I will check all
>>> this
>>> >> >> stuff
>>> >> >> >> as
>>> >> >> >> > soon as I get to the studio (there is a snowstorm here and my
>>> car
>>> >> is
>>> >> >> >> stuck
>>> >> >> >> > currently).
>>> >> >> >> >
>>> >> >> >> >
>>> >> >> >> > Thank you for guiding me through this again.
>>> >> >> >> >
>>> >> >> >> >
>>> >> >> >> > Preslav
>>> >> >> >> >
>>> >> >> >> >
>>> >> >> >> >
>>> >> >> >> > *
>>> >> >> >> >
>>> >> >> >> > On Sat, Feb 6, 2010 at 10:26 AM, jammie
>>> >> >> >> > <jammie.emma@... 
>>> >> >> >> > <jammie.emma%40blueyonder.co.uk><jammie.emma%
>>> 40blueyonder.co.uk>
>>> >> >> >> > <jammie.emma%40blueyonder.co.uk><jammie.emma%
>>> >>
>>> >> >> 40blueyonder.co.uk>>wrote:
>>> >> >>
>>> >> >> >> >
>>> >> >> >> >>
>>> >> >> >> >>
>>> >> >> >> >> the -5v regulator is ic il327
>>> >> >> >> >>
>>> >> >> >> >> the tip29 npn power transister does the 10v it is qq306 it 
>>> >> >> >> >> is
>>> >> >> attached
>>> >> >> >> to
>>> >> >> >> >> t0-220 heatsink ze323
>>> >> >> >> >>
>>> >> >> >> >> ----- Original Message -----
>>> >> >> >> >> From: "Preslav Lefterov"
>>> >> >> >> >> <plefterov@... <plefterov%40gmail.com> <plefterov%
>>> 40gmail.com><plefterov%
>>> >> 40gmail.com>
>>> >> >> >> >> <plefterov%40gmail.com><plefterov%
>>> >> >> >> 40gmail.com>>
>>> >> >> >> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>>> 40yahoogroups.com> <emax%
>>> >> 40yahoogroups.com> <emax%
>>> >> >> 40yahoogroups.com> <emax%
>>> >> >> >> 40yahoogroups.com>>
>>> >> >> >> >> Sent: Saturday, February 06, 2010 1:35 AM
>>> >> >> >> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
>>> >> >> >> >>
>>> >> >> >> >> > Thanks for your help. Here are the readings:
>>> >> >> >> >> >
>>> >> >> >> >> > OR/GR = 12.48V
>>> >> >> >> >> > YE/GR = 5.0V
>>> >> >> >> >> > PU/GR = 12.18 (if i measure with red probe on green wire 
>>> >> >> >> >> > and
>>> >> >> >> >> > black
>>> >> >> >> >> > probe
>>> >> >> >> >> > on
>>> >> >> >> >> > the purple) or -12.18V (if I measure with the red probe on
>>> the
>>> >> >> >> >> > purple
>>> >> >> >> >> > and
>>> >> >> >> >> > black probe on the green)
>>> >> >> >> >> >
>>> >> >> >> >> > The floppy drive works perfectly...it loads the OS and and
>>> >> >> >> >> > samples/presets.
>>> >> >> >> >> >
>>> >> >> >> >> > I appreciate your time.
>>> >> >> >> >> >
>>> >> >> >> >> > Preslav
>>> >> >> >> >> >
>>> >> >> >> >> > On Fri, Feb 5, 2010 at 7:17 PM, jammie
>>> >> >> >> >> > <jammie.emma@...<jammie.emma%40blueyonder.co.uk><jammie.emma%
>>> 40blueyonder.co.uk>
>>> >> >> >> >> > <jammie.emma%40blueyonder.co.uk><jammie.emma%
>>> >> >> 40blueyonder.co.uk>
>>> >> >> >> <jammie.emma%40blueyonder.co.uk>>
>>> >> >> >>
>>> >> >> >> >>
>>> >> >> >> >> > wrote:
>>> >> >> >> >> >
>>> >> >> >> >> >>
>>> >> >> >> >> >>
>>> >> >> >> >> >>
>>> >> >> >> >> >> test each wire conection
>>> >> >> >> >> >>
>>> >> >> >> >> >> orange and green wires red probe on the orange black 
>>> >> >> >> >> >> probe
>>> on
>>> >> >> >> >> >> the
>>> >> >> >> >> >> green
>>> >> >> >> >> >> for
>>> >> >> >> >> >> +12v
>>> >> >> >> >> >>
>>> >> >> >> >> >> yellow and green wires red probe for yellow wire black
>>> probe
>>> >> >> >> >> >> on
>>> >> >> the
>>> >> >> >> >> green
>>> >> >> >> >> >> wire for +5v
>>> >> >> >> >> >>
>>> >> >> >> >> >> purple and green wires red probe on the green wire black
>>> >> >> >> >> >> probe
>>> >> >> >> >> >> on
>>> >> >> >> >> >> the
>>> >> >> >> >> >> purple wire for -12v
>>> >> >> >> >> >>
>>> >> >> >> >> >> test this for me and give me your readings
>>> >> >> >> >> >>
>>> >> >> >> >> >> does the floppy drive work as this is the 5v line
>>> >> >> >> >> >>
>>> >> >> >> >> >> the 5 v on the mother boards for other circuits gets its 
>>> >> >> >> >> >> 5v
>>> >> from
>>> >> >> >> power
>>> >> >> >> >> >> regulators of the +12v supply
>>> >> >> >> >> >>
>>> >> >> >> >> >> ----- Original Message -----
>>> >> >> >> >> >> From: preslavl
>>> >> >> >> >> >> To: emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>>> 40yahoogroups.com> <emax%
>>> >> 40yahoogroups.com> <emax%
>>> >> >> 40yahoogroups.com> <emax%
>>> >> >> >> 40yahoogroups.com> <emax%
>>> >> >> >> >> 40yahoogroups.com>
>>> >> >> >> >> >> Sent: Friday, February 05, 2010 9:37 PM
>>> >> >> >> >> >> Subject: [emax] Re: Emax Problem Diagnosis
>>> >> >> >> >> >>
>>> >> >> >> >> >> So I tried testing the voltages at the connector that 
>>> >> >> >> >> >> goes
>>> >> >> >> >> >> between
>>> >> >> >> the
>>> >> >> >> >> PS
>>> >> >> >> >> >> board and the CPU Board. I tested on the PS side. If I
>>> follow
>>> >> >> >> >> >> the
>>> >> >> >> >> >> color
>>> >> >> >> >> >> coding I read in a message on here somewhere: Yellow 
>>> >> >> >> >> >> (+5V),
>>> >> >> >> >> >> Orange
>>> >> >> >> >> >> (+12V),
>>> >> >> >> >> >> Purple (-12V), and Green (0V/Ground).
>>> >> >> >> >> >>
>>> >> >> >> >> >> I get nowhere near those voltages...now I might be doing
>>> this
>>> >> >> >> >> >> completely
>>> >> >> >> >> >> wrong, but I get +12V at the Green wire, and 0v at the
>>> Yellow
>>> >> >> >> >> >> (where
>>> >> >> >> I
>>> >> >> >> >> >> should be getting +5V). I also get +17V at the Orange
>>> wire...
>>> >> >> >> >> >>
>>> >> >> >> >> >> Again, I'm not sure if I'm testing at the correct points.
>>> By
>>> >> the
>>> >> >> >> >> >> way
>>> >> >> >> >> >> I'm
>>> >> >> >> >> >> still getting sound out of the Emax so it has not 
>>> >> >> >> >> >> exploded
>>> in
>>> >> my
>>> >> >> >> hands
>>> >> >> >> >> as
>>> >> >> >> >> >> of
>>> >> >> >> >> >> yet.
>>> >> >> >> >> >>
>>> >> >> >> >> >> --- In emax@yahoogroups.com 
>>> >> >> >> >> >> <emax%40yahoogroups.com><emax%
>>> 40yahoogroups.com> <emax%
>>> >> 40yahoogroups.com> <emax%
>>> >> >> 40yahoogroups.com> <emax%
>>> >> >> >> 40yahoogroups.com> <emax%
>>> >> >> >>
>>> >> >> >> >> 40yahoogroups.com>, "jammie"
>>> >> >> >> >>
>>> >> >> >> >> >> <jammie.emma@...> wrote:
>>> >> >> >> >> >> >
>>> >> >> >> >> >> > right the cv (control voltages for the filter cutoff 
>>> >> >> >> >> >> > vca
>>> >> >> >> >> >> > and
>>> >> >> >> >> >> > resonance
>>> >> >> >> >> >> are sent by the cv circuit ranging from 0v-5v
>>> >> >> >> >> >> >
>>> >> >> >> >> >> > which is sent by the cpu for control off the filter
>>> >> >> >> >> >> > depending
>>> >>
>>> >> >> >> >> >> > on
>>> >> >> >> >> >> > envelope
>>> >> >> >> >> >> settings or external controllers
>>> >> >> >> >> >> >
>>> >> >> >> >> >> > now the ssm2300 are sample and hold circuits they send
>>> out
>>> >> the
>>> >> >> >> >> >> > digital
>>> >> >> >> >> >> info into analog voltages which are sampled then
>>> transmitted
>>> >> >> >> >> >> as
>>> >>
>>> >> >> >> >> >> a
>>> >> >> >> >> voltage
>>> >> >> >> >> >> in
>>> >> >> >> >> >> the range of 0-5v 0v = 0 resonance 5v = full resonance
>>> >> >> >> >> >> >
>>> >> >> >> >> >> > or cut off or vca volume
>>> >> >> >> >> >> >
>>> >> >> >> >> >> > thats what the first 3 ssm2300 deal with
>>> >> >> >> >> >> >
>>> >> >> >> >> >> > the 4th ssm2300 deals with the digital signal comming
>>> from
>>> >> the
>>> >> >> >> >> >> > dacs
>>> >> >> >> >> >> > this
>>> >> >> >> >> >> is the samples that are transmitted from the ram to the
>>> dacs
>>> >> and
>>> >> >> to
>>> >> >> >> >> >> the
>>> >> >> >> >> >> samplre and hold circuits which send out voltages 0-5v
>>> which
>>> >> >> >> corispond
>>> >> >> >> >> to
>>> >> >> >> >> >> the digital sound into analog format
>>> >> >> >> >> >> >
>>> >> >> >> >> >> > now if you are getting sound out then the ssm2300 for
>>> that
>>> >> >> >> >> >> > part
>>> >> >> >> >> >> > of
>>> >> >> >> >> >> > the
>>> >> >> >> >> >> circuit is working it seems to be the cv circuit that you
>>> are
>>> >> >> >> >> >> having
>>> >> >> >> a
>>> >> >> >> >> >> problem with not being sent into the ssm2300 to be made
>>> into
>>> >> the
>>> >> >> >> >> >> analog
>>> >> >> >> >> >> control voltages
>>> >> >> >> >> >> >
>>> >> >> >> >> >> > ----- Original Message -----
>>> >> >> >> >> >> > From: preslavl
>>> >> >> >> >> >> > To: emax@yahoogroups.com <emax%40yahoogroups.com> 
>>> >> >> >> >> >> > <emax%
>>> 40yahoogroups.com> <emax%
>>> >> 40yahoogroups.com> <emax%
>>> >> >> 40yahoogroups.com> <emax%
>>> >> >> >> 40yahoogroups.com> <emax%
>>> >> >> >> >> 40yahoogroups.com>
>>> >> >> >> >> >> > Sent: Friday, February 05, 2010 7:18 PM
>>> >> >> >> >> >> > Subject: [emax] Re: Emax Problem Diagnosis
>>> >> >> >> >> >> >
>>> >> >> >> >> >> >
>>> >> >> >> >> >> >
>>> >> >> >> >> >> > Let me make sure I understand you correctly:
>>> >> >> >> >> >> >
>>> >> >> >> >> >> > What you describe is one test: checking that the 2300s
>>> are
>>> >> >> >> >> >> > getting
>>> >> >> >> >> >> > the
>>> >> >> >> >> >> correct voltage from the 5v supply? And I should be 
>>> >> >> >> >> >> getting
>>>
>>> >> >> >> >> >> +/-
>>> >> >> 12V
>>> >> >> >> >> >> and
>>> >> >> >> >> >> ground? Are there testpoints visible or is it pretty
>>> obvious
>>> >> >> >> >> >> where
>>> >> >>
>>> >> >> >> >> >> to
>>> >> >> >> >> >> test
>>> >> >> >> >> >> it?
>>> >> >> >> >> >> >
>>> >> >> >> >> >> > Thanks for the quick reply
>>> >> >> >> >> >> >
>>> >> >> >> >> >> > --- In emax@yahoogroups.com 
>>> >> >> >> >> >> > <emax%40yahoogroups.com><emax%
>>> 40yahoogroups.com> <emax%
>>> >> 40yahoogroups.com> <emax%
>>> >> >> 40yahoogroups.com> <emax%
>>> >> >> >> 40yahoogroups.com> <emax%
>>> >> >> >>
>>> >> >> >> >> 40yahoogroups.com>, "jammie"
>>> >> >> >> >>
>>> >> >> >> >> >> <jammie.emma@> wrote:
>>> >> >> >> >> >> > >
>>> >> >> >> >> >> > > check the 5 v supply as this is the control voltage 
>>> >> >> >> >> >> > > of
>>> >> >> >> >> >> > > the
>>> >> >> >> filters
>>> >> >> >> >> >> > >
>>> >> >> >> >> >> > > the cv control gets sent to 1 of the 2300 for fc 1 
>>> >> >> >> >> >> > > for
>>> >> >> >> >> >> > > resonance
>>> >> >> >> 1
>>> >> >> >> >> is
>>> >> >> >> >> >> for the vca and thhe other is for the dacs for the 8 note
>>> >> >> polyphony
>>> >> >> >> >> >> each
>>> >> >> >> >> >> octal sample and hold circuits for each of the functions
>>> >> >> >> >> >> > >
>>> >> >> >> >> >> > > check to see that you are getting the corect voltage
>>> for
>>> >> >> >> operation
>>> >> >> >> >> of
>>> >> >> >> >> >> the 2300 or 4051 or smp08
>>> >> >> >> >> >> > >
>>> >> >> >> >> >> > > if i was to change them then i would upgrade them to
>>> the
>>> >> >> >> >> >> > > newer
>>> >> >> >> >> faster
>>> >> >> >> >> >> slew rate the smp08 are the best and are from analog
>>> devices
>>> >> and
>>> >> >> >> >> >> are
>>> >> >> >> >> >> direct
>>> >> >> >> >> >> replacements for the ssm2300 which are 4051 equivelents
>>> made
>>> >> >> >> >> >> by
>>> >> >> emu
>>> >> >> >> >> >> > >
>>> >> >> >> >> >> > > the smp08 they have a faster slew rate and have 
>>> >> >> >> >> >> > > faster
>>> >> >> >> >> >> > > transient
>>> >> >> >> >> >> response with less distortion
>>> >> >> >> >> >> > >
>>> >> >> >> >> >> > >
>>> >> >> >> >> >> > > you should be getting 12vdc vdd and grnd
>>> >> >> >> >> >> > >
>>> >> >> >> >> >> > > ----- Original Message -----
>>> >> >> >> >> >> > > From: preslavl
>>> >> >> >> >> >> > > To: emax@yahoogroups.com 
>>> >> >> >> >> >> > > <emax%40yahoogroups.com><emax%
>>> 40yahoogroups.com> <emax%
>>> >> 40yahoogroups.com> <emax%
>>> >> >> 40yahoogroups.com> <emax%
>>> >> >> >> 40yahoogroups.com> <emax%
>>> >> >> >> >> 40yahoogroups.com>
>>> >> >> >> >> >> > > Sent: Friday, February 05, 2010 5:54 PM
>>> >> >> >> >> >> > > Subject: [emax] Emax Problem Diagnosis
>>> >> >> >> >> >> > >
>>> >> >> >> >> >> > >
>>> >> >> >> >> >> > >
>>> >> >> >> >> >> > > Hello,
>>> >> >> >> >> >> > >
>>> >> >> >> >> >> > > I wanted to see if I can get some help diagnosing the
>>> >> >> >> >> >> > > problem(s)
>>> >> >> >> >> >> > > of
>>> >> >> >> >> >> > > an
>>> >> >> >> >> >> Emax I i just purchased.
>>> >> >> >> >> >> > >
>>> >> >> >> >> >> > > Here are they symptoms:
>>> >> >> >> >> >> > >
>>> >> >> >> >> >> > > - No Frequency Cutoff - I calibrated the data slider
>>> and
>>> >> >> >> >> >> > > it
>>> >> >> >> >> registers
>>> >> >> >> >> >> the frequency cutoff (FC) going up in numbers but you
>>> cannot
>>> >> >> >> >> >> hear
>>> >> >> >> >> >> any
>>> >> >> >> >> >> change.
>>> >> >> >> >> >> > >
>>> >> >> >> >> >> > > - No Attack in the ADSR or the filter ADSR - cannot
>>> hear
>>> >> >> >> >> >> > > an
>>> >> >> >> >> >> > > increase
>>> >> >> >> >>
>>> >> >> >> >> >> > > in
>>> >> >> >> >> >> attack even when the values increase.
>>> >> >> >> >> >> > >
>>> >> >> >> >> >> > > - No Volume - volume slider was calibrated and it 
>>> >> >> >> >> >> > > seems
>>>
>>> >> >> >> >> >> > > to
>>> >> >> work
>>> >> >> >> >> >> > > but
>>> >> >> >> >> >> moving it up or down does not make a difference...volume
>>> >> >> >> >> >> seems
>>> >> >> >> >> >> to
>>> >> >> >> >> >> be
>>> >> >> >> >> >> at
>>> >> >> >> >> >> 100%.
>>> >> >> >> >> >> > >
>>> >> >> >> >> >> > > These are pretty much all the symptoms I've notices 
>>> >> >> >> >> >> > > so
>>> >> >> >> >> >> > > far.
>>> >> >> >> >> >> > >
>>> >> >> >> >> >> > > Things I've covered so far:
>>> >> >> >> >> >> > >
>>> >> >> >> >> >> > > - I replaced the 4 SSM 2300 that were in the 
>>> >> >> >> >> >> > > sampler -
>>> it
>>> >> >> >> >> >> > > did
>>> >> >> >> >> >> > > not
>>> >> >> >> >> >> > > seem
>>> >> >> >> >> >> to make ANY difference. I replaced the original chips 
>>> >> >> >> >> >> with
>>> >> >> >> >> >> ones
>>> >> >> >> >> >> marked:
>>> >> >> >> >> >> "SSM2300 8652". I purchased these on eBAY. Could this be
>>> the
>>> >> >> issue?
>>> >> >> >> >> >> > >
>>> >> >> >> >> >> > > - I went through the recalibration procedure - no
>>> change.
>>> >> >> >> >> >> > >
>>> >> >> >> >> >> > > - I performed the diagnostic tests inside the Master
>>> menu
>>> >> >> >> >> >> > > (8,
>>> >> >> >> >> >> > > 8,
>>> >> >> >> >> >> > > YES).
>>> >> >> >> >> >> ERAM and Bank RAM checked out OK and all other tests 
>>> >> >> >> >> >> seemed
>>>
>>> >> >> >> >> >> to
>>> >> >> have
>>> >> >> >> >> >> passed.
>>> >> >> >> >> >> > >
>>> >> >> >> >> >> > > Any ideas anyone?
>>> >> >> >> >> >> > >
>>> >> >> >> >> >> > > Thank you,
>>> >> >> >> >> >> > >
>>> >> >> >> >> >> > > Preslav
>>> >> >> >> >> >> > >
>>> >> >> >> >> >> > >
>>> >> >> >> >> >> > >
>>> >> >> >> >> >> > >
>>> >> >> >> >> >> > >
>>> >> >> >> >> >> > >
>>> >> >> >> >> >> > >
>>> ----------------------------------------------------------
>>> >> >> >> >> >> > >
>>> >> >> >> >> >> > >
>>> >> >> >> >> >> > >
>>> >> >> >> >> >> > > No virus found in this incoming message.
>>> >> >> >> >> >> > > Checked by AVG - www.avg.com
>>> >> >> >> >> >> > > Version: 8.5.435 / Virus Database: 271.1.1/2669 -
>>> Release
>>> >> >> Date:
>>> >> >> >> >> >> 02/05/10 07:35:00
>>> >> >> >> >> >> > >
>>> >> >> >> >> >> > >
>>> >> >> >> >> >> > > [Non-text portions of this message have been removed]
>>> >> >> >> >> >> > >
>>> >> >> >> >> >> >
>>> >> >> >> >> >> >
>>> >> >> >> >> >> >
>>> >> >> >> >> >> >
>>> >> >> >> >> >> >
>>> >> >> >> >> >> >
>>> >> >> >> >> >> >
>>> ----------------------------------------------------------
>>> >> >> >> >> >> >
>>> >> >> >> >> >> >
>>> >> >> >> >> >> >
>>> >> >> >> >> >> > No virus found in this incoming message.
>>> >> >> >> >> >> > Checked by AVG - www.avg.com
>>> >> >> >> >> >> > Version: 8.5.435 / Virus Database: 271.1.1/2669 - 
>>> >> >> >> >> >> > Release
>>> >> >> >> >> >> > Date:
>>> >> >> >> >> >> > 02/05/10
>>> >> >> >> >> >> 07:35:00
>>> >> >> >> >> >> >
>>> >> >> >> >> >> >
>>> >> >> >> >> >> > [Non-text portions of this message have been removed]
>>> >> >> >> >> >> >
>>> >> >> >> >> >>
>>> >> >> >> >> >> ----------------------------------------------------------
>>> >> >> >> >> >>
>>> >> >> >> >> >> No virus found in this incoming message.
>>> >> >> >> >> >> Checked by AVG - www.avg.com
>>> >> >> >> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release
>>> >> >> >> >> >> Date:
>>> >> >> >> >> >> 02/05/10
>>> >> >> >> >> >> 07:35:00
>>> >> >> >> >> >>
>>> >> >> >> >> >> [Non-text portions of this message have been removed]
>>> >> >> >> >> >>
>>> >> >> >> >> >>
>>> >> >> >> >> >>
>>> >> >> >> >> >
>>> >> >> >> >> >
>>> >> >> >> >> > [Non-text portions of this message have been removed]
>>> >> >> >> >> >
>>> >> >> >> >> >
>>> >> >> >> >> >
>>> >> >> >> >> > ------------------------------------
>>> >> >> >> >> >
>>> >> >> >> >> > Emax and Emax II User's Group Website
>>> >> >> >> >> >
>>> >> >> >> >> > http://www.silveriafamily.comYahoo! Groups Links
>>> >> >> >> >>
>>> >> >> >> >> >
>>> >> >> >> >> >
>>> >> >> >> >> >
>>> >> >> >> >>
>>> >> >> >> >> ----------------------------------------------------------
>>> >> >> >> >>
>>> >> >> >> >> No virus found in this incoming message.
>>> >> >> >> >> Checked by AVG - www.avg.com
>>> >> >> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release
>>> Date:
>>> >> >> >> >> 02/05/10
>>> >> >> >> >> 07:35:00
>>> >> >> >> >>
>>> >> >> >> >>
>>> >> >> >> >>
>>> >> >> >> >
>>> >> >> >> >
>>> >> >> >> > [Non-text portions of this message have been removed]
>>> >> >> >> >
>>> >> >> >> >
>>> >> >> >> >
>>> >> >> >> > ------------------------------------
>>> >> >> >> >
>>> >> >> >> > Emax and Emax II User's Group Website
>>> >> >> >> >
>>> >> >> >> > http://www.silveriafamily.comYahoo! Groups Links
>>> >> >> >> >
>>> >> >> >> >
>>> >> >> >> >
>>> >> >> >>
>>> >> >> >> ----------------------------------------------------------
>>> >> >> >>
>>> >> >> >> No virus found in this incoming message.
>>> >> >> >> Checked by AVG - www.avg.com
>>> >> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2671 - Release Date:
>>> >> >> >> 02/06/10
>>> >> >> >> 07:35:00
>>> >> >> >>
>>> >> >> >>
>>> >> >> >>
>>> >> >> >
>>> >> >> >
>>> >> >> > [Non-text portions of this message have been removed]
>>> >> >> >
>>> >> >> >
>>> >> >> >
>>> >> >> > ------------------------------------
>>> >> >> >
>>> >> >> > Emax and Emax II User's Group Website
>>> >> >> >
>>> >> >> > http://www.silveriafamily.comYahoo! Groups Links
>>> >> >> >
>>> >> >> >
>>> >> >> >
>>> >> >>
>>> >> >> ----------------------------------------------------------
>>> >> >>
>>> >> >> No virus found in this incoming message.
>>> >> >> Checked by AVG - www.avg.com
>>> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2675 - Release Date:
>>> >> >> 02/08/10
>>> >> >> 07:35:00
>>> >> >>
>>> >> >>
>>> >> >>
>>> >> >
>>> >> >
>>> >> > [Non-text portions of this message have been removed]
>>> >> >
>>> >> >
>>> >> >
>>> >> > ------------------------------------
>>> >> >
>>> >> > Emax and Emax II User's Group Website
>>> >> >
>>> >> > http://www.silveriafamily.comYahoo! Groups Links
>>> >> >
>>> >> >
>>> >> >
>>> >>
>>> >> ----------------------------------------------------------
>>> >>
>>> >> No virus found in this incoming message.
>>> >> Checked by AVG - www.avg.com
>>> >> Version: 8.5.435 / Virus Database: 271.1.1/2675 - Release Date:
>>> 02/08/10
>>> >> 07:35:00
>>> >>
>>> >>
>>> >>
>>> >
>>> >
>>> > [Non-text portions of this message have been removed]
>>> >
>>> >
>>> >
>>> > ------------------------------------
>>> >
>>> > Emax and Emax II User's Group Website
>>> >
>>> > http://www.silveriafamily.comYahoo! Groups Links
>>> >
>>> >
>>> >
>>>
>>> ----------------------------------------------------------
>>>
>>> No virus found in this incoming message.
>>> Checked by AVG - www.avg.com
>>> Version: 8.5.435 / Virus Database: 271.1.1/2676 - Release Date: 02/08/10
>>> 19:35:00
>>>
>>>
>>>
>>
>>
>
>
> [Non-text portions of this message have been removed]
>
>
>
> ------------------------------------
>
> Emax and Emax II User's Group Website
>
> http://www.silveriafamily.comYahoo! Groups Links
>
>
>


--------------------------------------------------------------------------------



No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 8.5.435 / Virus Database: 271.1.1/2706 - Release Date: 02/23/10 
19:34:00

Re: [english 100%] Re: [emax] Re: Emax Problem Diagnosis

2010-02-24 by Malte Krug

OFF TOPIC


@Jammie: I appreciate and respect your expertise in helping us all with  
our beloved old samplers, but is it possible for you to use some  
punctuation marks in your mailings?

For me, being a non-native english speaker, it's sometimes difficult to  
get to the point of your postings.

Again, no offense, just asking,

cu
Malte





Am 24.02.2010, 16:12 Uhr, schrieb jammie <jammie.emma@...>:
Show quoted textHide quoted text
> yes those smp08 are fantastic very fast slew rate the envelopes will be
> snappier as the sample and hold responde quicker to the transients
>
> so it was the 8bit dac for the cv circuit that was at fault there you go
> just goes to show what 20 years of synth servicing does pay off i was  
> glad
> to of helped
>  that fix by a repair tech in usa would have cost you $70 per hour
>
> also as see your upgrading chips the tlo82 can be upgraded to to tle7072  
> i
> have fitted these for the sq80 sq1 eps sampler and the dss1 from the  
> 2448 op
> amps there clean and have a great headroom with out distrortion they are
> direct drop ins as they are now the replacement chip for the tloxx series
> ----- Original Message -----
> From: "Preslav Lefterov" <plefterov@...>
> To: <emax@yahoogroups.com>
> Sent: Wednesday, February 24, 2010 2:39 PM
> Subject: Re: [emax] Re: Emax Problem Diagnosis
>
>
>> Just an update:
>>
>> After purchasing the AD7524 (link below) from Digikey in the US and
>> replacing it, my Emax works now. Thanks to Jammie for all the help in  
>> the
>> diagnosis.
>>
>> Preslav
>>
>> On Tue, Feb 9, 2010 at 4:30 PM, Preslav Lefterov
>> <plefterov@...>wrote:
>>
>>> Digikey seems to have them. Would these variations work:
>>>
>>> *AD7524* :
>>> http://search.digikey.com/scripts/DkSearch/dksus.dll?WT.z_header=search_go&lang=en&site=us&keywords=AD7524JNZ-ND&x=0&y=0
>>> *TL 082:*
>>> http://search.digikey.com/scripts/DkSearch/dksus.dll?WT.z_header=search_go&lang=en&site=us&keywords=TL082CPNS-ND+&x=15&y=15
>>>
>>> I also thought I'd order the SMP08. These are them correct:
>>> http://cgi.ebay.com/Qty-3-Analog-Devices-AD-SMP08F-SMP08-8-ch-S-H-NEW_W0QQitemZ310061621913QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item48311ce299#ht_891wt_1167?
>>>
>>>
>>> Thanks. Will keep you updated with the progress once I replace these  
>>> ICs.
>>>
>>>
>>> Preslav
>>>
>>> On Tue, Feb 9, 2010 at 1:35 PM, jammie
>>> <jammie.emma@...>wrote:
>>>
>>>>
>>>>
>>>> YOU CAN STILL get them rs or digikey farnell
>>>>
>>>> ----- Original Message -----
>>>> From: "Preslav Lefterov" <plefterov@... <plefterov%40gmail.com>>
>>>> To: <emax@yahoogroups.com <emax%40yahoogroups.com>>
>>>> Sent: Tuesday, February 09, 2010 2:02 PM
>>>> Subject: Re: [emax] Re: Emax Problem Diagnosis
>>>>
>>>> > Should I try replacing the AD 7524 and/or the TL082? How hard are
>>>> > these
>>>> to
>>>> > find ?
>>>> >
>>>> >
>>>> > Preslav
>>>> >
>>>> > On Tue, Feb 9, 2010 at 1:56 AM, jammie
>>>> > <jammie.emma@...<jammie.emma%40blueyonder.co.uk>>
>>>>
>>>> > wrote:
>>>> >
>>>> >>
>>>> >>
>>>> >> yes
>>>> >>
>>>> >> it could be a broken cv dac or it could be the opamp the tlo82
>>>> >>
>>>> >> ----- Original Message -----
>>>> >> From: "Preslav Lefterov" <plefterov@...
>>>> >> <plefterov%40gmail.com><plefterov%
>>>> 40gmail.com>>
>>>> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>>>> 40yahoogroups.com>>
>>>> >> Sent: Monday, February 08, 2010 10:01 PM
>>>> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
>>>> >>
>>>> >> > Jammie,
>>>> >> >
>>>> >> > Just tested:
>>>> >> >
>>>> >> > Preset Definition: Realtime controls: Pedal to FC - nothing;  
>>>> Pedal
>>>> >> > to
>>>> >> > Pitch
>>>> >> > - I hear it modulating the pitch.
>>>> >> >
>>>> >> > Then I tried MIDI A to FC:
>>>> >> >
>>>> >> > I assigned MIDI A to FC and modulated that from an external  
>>>> source
>>>> >> > (Cubase).
>>>> >> > When I assigned Midi A to Pitch it works and modulates the Pitch.
>>>> When
>>>> >> > I
>>>> >> > switch to volume/frequency/pan - I get nothing. Should I be
>>>> >> > measuring
>>>>
>>>> >> > the
>>>> >> > voltage across pin 3 of the ssm2300s while I'm modulating with  
>>>> MIDI
>>>> >> > A
>>>> /
>>>> >> > Pedal?
>>>> >> >
>>>> >> >
>>>> >> > Preslav
>>>> >> >
>>>> >> >
>>>> >> > On Mon, Feb 8, 2010 at 2:40 PM, jammie
>>>> >> > <jammie.emma@... <jammie.emma%40blueyonder.co.uk>
>>>> <jammie.emma%40blueyonder.co.uk>>
>>>> >>
>>>> >> > wrote:
>>>> >> >
>>>> >> >>
>>>> >> >>
>>>> >> >> you are not getting any cv voltage its just set to ov
>>>> >> >>
>>>> >> >> that no voltage
>>>> >> >>
>>>> >> >> so no voltage is being sent out by the ssm2300
>>>> >> >>
>>>> >> >> ov means no resonance no volume no filtercut no pan
>>>> >> >>
>>>> >> >> try setting up an external contreol to the filter cutoff to if  
>>>> it
>>>> will
>>>> >> >> sweep
>>>> >> >>
>>>> >> >> ----- Original Message -----
>>>> >> >> From: "Preslav Lefterov"
>>>> >> >> <plefterov@...<plefterov%40gmail.com>
>>>> >> >> <plefterov%40gmail.com><plefterov%
>>>> >> 40gmail.com>>
>>>> >> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>>>> 40yahoogroups.com> <emax%
>>>> >> 40yahoogroups.com>>
>>>> >> >> Sent: Monday, February 08, 2010 7:06 PM
>>>> >> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
>>>> >> >>
>>>> >> >> > Jammie,
>>>> >> >> >
>>>> >> >> > Sorry for the delay. Got the readings:
>>>> >> >> >
>>>> >> >> > *IC41: *
>>>> >> >> >
>>>> >> >> > I have +10V on pin8, and -12V on pin4.
>>>> >> >> >
>>>> >> >> > *IC49:*
>>>> >> >> >
>>>> >> >> > I have +5V on pin 14
>>>> >> >> >
>>>> >> >> > *SSM2300s:*
>>>> >> >> >
>>>> >> >> > On all 4 I consistently have the following readings:
>>>> >> >> >
>>>> >> >> > pin 7 = -4.87V, pin 16 = +10.0V, pin 3 = 0.00V
>>>> >> >> >
>>>> >> >> >
>>>> >> >> > Any other ideas? You mentioned I should be getting 0-5V on  
>>>> pin 3
>>>> >> >> > from
>>>> >> >> > the
>>>> >> >>
>>>> >> >> > CV
>>>> >> >> > voltage on all ssm2300s...how can I test that the voltage goes
>>>> >> >> > up
>>>> to
>>>> >> 5v
>>>> >> >> > since now it stays at 0.00v?
>>>> >> >> >
>>>> >> >> >
>>>> >> >> > Thanks,
>>>> >> >> >
>>>> >> >> > Preslav
>>>> >> >> >
>>>> >> >> >
>>>> >> >> >
>>>> >> >> >
>>>> >> >> > On Sat, Feb 6, 2010 at 4:04 PM, jammie
>>>> >> >> > <jammie.emma@...
>>>> >> >> > <jammie.emma%40blueyonder.co.uk><jammie.emma%
>>>> 40blueyonder.co.uk>
>>>> >> <jammie.emma%40blueyonder.co.uk>>
>>>> >>
>>>> >> >>
>>>> >> >> > wrote:
>>>> >> >> >
>>>> >> >> >>
>>>> >> >> >>
>>>> >> >> >> no pins 8 +10v
>>>> >> >> >> pins 4 -12v are of off the tl082 ic41
>>>> >> >> >>
>>>> >> >> >> pin 3 gnd
>>>> >> >> >> pin 14 +5v are from the ic49 ad7524
>>>> >> >> >>
>>>> >> >> >> i said use pin 3 ground as your reference ground for testing
>>>> >> >> >> the
>>>> >> >> >> pins
>>>> >>
>>>> >> >> >> on
>>>> >> >> >> the
>>>> >> >> >> tl082
>>>> >> >> >>
>>>> >> >> >> pin 3 on the ssm2300 is the cv voltage check this to see if  
>>>> you
>>>> are
>>>> >> >> >> getting
>>>> >> >> >>
>>>> >> >> >> the cv 0-5v
>>>> >> >> >>
>>>> >> >> >> the rest of the pins for the ssm2300 are correct
>>>> >> >> >>
>>>> >> >> >> ----- Original Message -----
>>>> >> >> >> From: "Preslav Lefterov"
>>>> >> >> >> <plefterov@... <plefterov%40gmail.com><plefterov%
>>>> 40gmail.com>
>>>> >> >> >> <plefterov%40gmail.com><plefterov%
>>>> >> >> 40gmail.com>>
>>>> >> >> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>>>> 40yahoogroups.com> <emax%
>>>> >> 40yahoogroups.com> <emax%
>>>> >> >> 40yahoogroups.com>>
>>>> >> >> >> Sent: Saturday, February 06, 2010 8:14 PM
>>>> >> >> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
>>>> >> >> >>
>>>> >> >> >> > Jammie,
>>>> >> >> >> >
>>>> >> >> >> > Ok let me run through this stuff and make sure I understand
>>>> >> >> >> > correctly
>>>> >> >> >> > (I
>>>> >> >> >> > should be able to do all the tests later today or  
>>>> tomorrow):
>>>> >> >> >> >
>>>> >> >> >> > 1. SSM2300s are fed by the *74HCT273* latching circuit. Is
>>>> >> >> >> > this
>>>>
>>>> >> >> >> > the
>>>> >> >> >> > name
>>>> >> >> >> > of
>>>> >> >> >> > the actual circuit as per the schematics or is it a  
>>>> specific
>>>> >> >> >> > IC
>>>>
>>>> >> >> >> > or
>>>> >> >> >> > other
>>>> >> >> >> > component?
>>>> >> >> >> >
>>>> >> >> >> >
>>>> >> >> >> > 2. I need to check the following pins on *IC49 (AD7524): *
>>>> >> >> >> > *
>>>> >> >> >> > ----> pin 8 should be +10V
>>>> >> >> >> > -----> pin 4 should be -12V
>>>> >> >> >> > -----> pin 3 is GROUND
>>>> >> >> >> > -----> pin 14 should be +5V
>>>> >> >> >> >
>>>> >> >> >> > 3. I need to check the following pins on IC41 (tlo82):
>>>> >> >> >> > -----> pin 1 should be 0-5V (this is the output to all
>>>> SSM2300s)
>>>> >> >> >> >
>>>> >> >> >> > Which pin on IC41(tlo82) is GROUND?
>>>> >> >> >> >
>>>> >> >> >> > 4. I need to check the voltages on these pins on all
>>>> >> >> >> > SSM2300s:
>>>> >> >> >> >
>>>> >> >> >> > ----> pin 7 should be -5V
>>>> >> >> >> > ----> pin 8 is GROUND
>>>> >> >> >> > ----> pin 16 should be +10V
>>>> >> >> >> >
>>>> >> >> >> > 5. ICil327 is the -5V regulator, so if I am nto getting  
>>>> this
>>>> >> voltage
>>>> >> >> to
>>>> >> >> >> > the
>>>> >> >> >> > SSM2300s I can try replacing this?
>>>> >> >> >> >
>>>> >> >> >> > 6. Transistor TIP29 / QQ306 is the +10V regulator. It is
>>>> attached
>>>> >> to
>>>> >> >> >> > a
>>>> >> >> >> > heatsink ZE323. If I am not getting +10V I can try  
>>>> replacing
>>>> this
>>>> >> >> >> > transistor?
>>>> >> >> >> >
>>>> >> >> >> >
>>>> >> >> >> > Just wanted to summarize your instructions. I will check  
>>>> all
>>>> this
>>>> >> >> stuff
>>>> >> >> >> as
>>>> >> >> >> > soon as I get to the studio (there is a snowstorm here and  
>>>> my
>>>> car
>>>> >> is
>>>> >> >> >> stuck
>>>> >> >> >> > currently).
>>>> >> >> >> >
>>>> >> >> >> >
>>>> >> >> >> > Thank you for guiding me through this again.
>>>> >> >> >> >
>>>> >> >> >> >
>>>> >> >> >> > Preslav
>>>> >> >> >> >
>>>> >> >> >> >
>>>> >> >> >> >
>>>> >> >> >> > *
>>>> >> >> >> >
>>>> >> >> >> > On Sat, Feb 6, 2010 at 10:26 AM, jammie
>>>> >> >> >> > <jammie.emma@...
>>>> >> >> >> > <jammie.emma%40blueyonder.co.uk><jammie.emma%
>>>> 40blueyonder.co.uk>
>>>> >> >> >> > <jammie.emma%40blueyonder.co.uk><jammie.emma%
>>>> >>
>>>> >> >> 40blueyonder.co.uk>>wrote:
>>>> >> >>
>>>> >> >> >> >
>>>> >> >> >> >>
>>>> >> >> >> >>
>>>> >> >> >> >> the -5v regulator is ic il327
>>>> >> >> >> >>
>>>> >> >> >> >> the tip29 npn power transister does the 10v it is qq306 it
>>>> >> >> >> >> is
>>>> >> >> attached
>>>> >> >> >> to
>>>> >> >> >> >> t0-220 heatsink ze323
>>>> >> >> >> >>
>>>> >> >> >> >> ----- Original Message -----
>>>> >> >> >> >> From: "Preslav Lefterov"
>>>> >> >> >> >> <plefterov@... <plefterov%40gmail.com> <plefterov%
>>>> 40gmail.com><plefterov%
>>>> >> 40gmail.com>
>>>> >> >> >> >> <plefterov%40gmail.com><plefterov%
>>>> >> >> >> 40gmail.com>>
>>>> >> >> >> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>>>> 40yahoogroups.com> <emax%
>>>> >> 40yahoogroups.com> <emax%
>>>> >> >> 40yahoogroups.com> <emax%
>>>> >> >> >> 40yahoogroups.com>>
>>>> >> >> >> >> Sent: Saturday, February 06, 2010 1:35 AM
>>>> >> >> >> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
>>>> >> >> >> >>
>>>> >> >> >> >> > Thanks for your help. Here are the readings:
>>>> >> >> >> >> >
>>>> >> >> >> >> > OR/GR = 12.48V
>>>> >> >> >> >> > YE/GR = 5.0V
>>>> >> >> >> >> > PU/GR = 12.18 (if i measure with red probe on green wire
>>>> >> >> >> >> > and
>>>> >> >> >> >> > black
>>>> >> >> >> >> > probe
>>>> >> >> >> >> > on
>>>> >> >> >> >> > the purple) or -12.18V (if I measure with the red probe  
>>>> on
>>>> the
>>>> >> >> >> >> > purple
>>>> >> >> >> >> > and
>>>> >> >> >> >> > black probe on the green)
>>>> >> >> >> >> >
>>>> >> >> >> >> > The floppy drive works perfectly...it loads the OS and  
>>>> and
>>>> >> >> >> >> > samples/presets.
>>>> >> >> >> >> >
>>>> >> >> >> >> > I appreciate your time.
>>>> >> >> >> >> >
>>>> >> >> >> >> > Preslav
>>>> >> >> >> >> >
>>>> >> >> >> >> > On Fri, Feb 5, 2010 at 7:17 PM, jammie
>>>> >> >> >> >> >  
>>>> <jammie.emma@...<jammie.emma%40blueyonder.co.uk><jammie.emma%
>>>> 40blueyonder.co.uk>
>>>> >> >> >> >> > <jammie.emma%40blueyonder.co.uk><jammie.emma%
>>>> >> >> 40blueyonder.co.uk>
>>>> >> >> >> <jammie.emma%40blueyonder.co.uk>>
>>>> >> >> >>
>>>> >> >> >> >>
>>>> >> >> >> >> > wrote:
>>>> >> >> >> >> >
>>>> >> >> >> >> >>
>>>> >> >> >> >> >>
>>>> >> >> >> >> >>
>>>> >> >> >> >> >> test each wire conection
>>>> >> >> >> >> >>
>>>> >> >> >> >> >> orange and green wires red probe on the orange black
>>>> >> >> >> >> >> probe
>>>> on
>>>> >> >> >> >> >> the
>>>> >> >> >> >> >> green
>>>> >> >> >> >> >> for
>>>> >> >> >> >> >> +12v
>>>> >> >> >> >> >>
>>>> >> >> >> >> >> yellow and green wires red probe for yellow wire black
>>>> probe
>>>> >> >> >> >> >> on
>>>> >> >> the
>>>> >> >> >> >> green
>>>> >> >> >> >> >> wire for +5v
>>>> >> >> >> >> >>
>>>> >> >> >> >> >> purple and green wires red probe on the green wire  
>>>> black
>>>> >> >> >> >> >> probe
>>>> >> >> >> >> >> on
>>>> >> >> >> >> >> the
>>>> >> >> >> >> >> purple wire for -12v
>>>> >> >> >> >> >>
>>>> >> >> >> >> >> test this for me and give me your readings
>>>> >> >> >> >> >>
>>>> >> >> >> >> >> does the floppy drive work as this is the 5v line
>>>> >> >> >> >> >>
>>>> >> >> >> >> >> the 5 v on the mother boards for other circuits gets  
>>>> its
>>>> >> >> >> >> >> 5v
>>>> >> from
>>>> >> >> >> power
>>>> >> >> >> >> >> regulators of the +12v supply
>>>> >> >> >> >> >>
>>>> >> >> >> >> >> ----- Original Message -----
>>>> >> >> >> >> >> From: preslavl
>>>> >> >> >> >> >> To: emax@yahoogroups.com <emax%40yahoogroups.com>  
>>>> <emax%
>>>> 40yahoogroups.com> <emax%
>>>> >> 40yahoogroups.com> <emax%
>>>> >> >> 40yahoogroups.com> <emax%
>>>> >> >> >> 40yahoogroups.com> <emax%
>>>> >> >> >> >> 40yahoogroups.com>
>>>> >> >> >> >> >> Sent: Friday, February 05, 2010 9:37 PM
>>>> >> >> >> >> >> Subject: [emax] Re: Emax Problem Diagnosis
>>>> >> >> >> >> >>
>>>> >> >> >> >> >> So I tried testing the voltages at the connector that
>>>> >> >> >> >> >> goes
>>>> >> >> >> >> >> between
>>>> >> >> >> the
>>>> >> >> >> >> PS
>>>> >> >> >> >> >> board and the CPU Board. I tested on the PS side. If I
>>>> follow
>>>> >> >> >> >> >> the
>>>> >> >> >> >> >> color
>>>> >> >> >> >> >> coding I read in a message on here somewhere: Yellow
>>>> >> >> >> >> >> (+5V),
>>>> >> >> >> >> >> Orange
>>>> >> >> >> >> >> (+12V),
>>>> >> >> >> >> >> Purple (-12V), and Green (0V/Ground).
>>>> >> >> >> >> >>
>>>> >> >> >> >> >> I get nowhere near those voltages...now I might be  
>>>> doing
>>>> this
>>>> >> >> >> >> >> completely
>>>> >> >> >> >> >> wrong, but I get +12V at the Green wire, and 0v at the
>>>> Yellow
>>>> >> >> >> >> >> (where
>>>> >> >> >> I
>>>> >> >> >> >> >> should be getting +5V). I also get +17V at the Orange
>>>> wire...
>>>> >> >> >> >> >>
>>>> >> >> >> >> >> Again, I'm not sure if I'm testing at the correct  
>>>> points.
>>>> By
>>>> >> the
>>>> >> >> >> >> >> way
>>>> >> >> >> >> >> I'm
>>>> >> >> >> >> >> still getting sound out of the Emax so it has not
>>>> >> >> >> >> >> exploded
>>>> in
>>>> >> my
>>>> >> >> >> hands
>>>> >> >> >> >> as
>>>> >> >> >> >> >> of
>>>> >> >> >> >> >> yet.
>>>> >> >> >> >> >>
>>>> >> >> >> >> >> --- In emax@yahoogroups.com
>>>> >> >> >> >> >> <emax%40yahoogroups.com><emax%
>>>> 40yahoogroups.com> <emax%
>>>> >> 40yahoogroups.com> <emax%
>>>> >> >> 40yahoogroups.com> <emax%
>>>> >> >> >> 40yahoogroups.com> <emax%
>>>> >> >> >>
>>>> >> >> >> >> 40yahoogroups.com>, "jammie"
>>>> >> >> >> >>
>>>> >> >> >> >> >> <jammie.emma@...> wrote:
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> > right the cv (control voltages for the filter cutoff
>>>> >> >> >> >> >> > vca
>>>> >> >> >> >> >> > and
>>>> >> >> >> >> >> > resonance
>>>> >> >> >> >> >> are sent by the cv circuit ranging from 0v-5v
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> > which is sent by the cpu for control off the filter
>>>> >> >> >> >> >> > depending
>>>> >>
>>>> >> >> >> >> >> > on
>>>> >> >> >> >> >> > envelope
>>>> >> >> >> >> >> settings or external controllers
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> > now the ssm2300 are sample and hold circuits they  
>>>> send
>>>> out
>>>> >> the
>>>> >> >> >> >> >> > digital
>>>> >> >> >> >> >> info into analog voltages which are sampled then
>>>> transmitted
>>>> >> >> >> >> >> as
>>>> >>
>>>> >> >> >> >> >> a
>>>> >> >> >> >> voltage
>>>> >> >> >> >> >> in
>>>> >> >> >> >> >> the range of 0-5v 0v = 0 resonance 5v = full resonance
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> > or cut off or vca volume
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> > thats what the first 3 ssm2300 deal with
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> > the 4th ssm2300 deals with the digital signal comming
>>>> from
>>>> >> the
>>>> >> >> >> >> >> > dacs
>>>> >> >> >> >> >> > this
>>>> >> >> >> >> >> is the samples that are transmitted from the ram to the
>>>> dacs
>>>> >> and
>>>> >> >> to
>>>> >> >> >> >> >> the
>>>> >> >> >> >> >> samplre and hold circuits which send out voltages 0-5v
>>>> which
>>>> >> >> >> corispond
>>>> >> >> >> >> to
>>>> >> >> >> >> >> the digital sound into analog format
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> > now if you are getting sound out then the ssm2300 for
>>>> that
>>>> >> >> >> >> >> > part
>>>> >> >> >> >> >> > of
>>>> >> >> >> >> >> > the
>>>> >> >> >> >> >> circuit is working it seems to be the cv circuit that  
>>>> you
>>>> are
>>>> >> >> >> >> >> having
>>>> >> >> >> a
>>>> >> >> >> >> >> problem with not being sent into the ssm2300 to be made
>>>> into
>>>> >> the
>>>> >> >> >> >> >> analog
>>>> >> >> >> >> >> control voltages
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> > ----- Original Message -----
>>>> >> >> >> >> >> > From: preslavl
>>>> >> >> >> >> >> > To: emax@yahoogroups.com <emax%40yahoogroups.com>
>>>> >> >> >> >> >> > <emax%
>>>> 40yahoogroups.com> <emax%
>>>> >> 40yahoogroups.com> <emax%
>>>> >> >> 40yahoogroups.com> <emax%
>>>> >> >> >> 40yahoogroups.com> <emax%
>>>> >> >> >> >> 40yahoogroups.com>
>>>> >> >> >> >> >> > Sent: Friday, February 05, 2010 7:18 PM
>>>> >> >> >> >> >> > Subject: [emax] Re: Emax Problem Diagnosis
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> > Let me make sure I understand you correctly:
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> > What you describe is one test: checking that the  
>>>> 2300s
>>>> are
>>>> >> >> >> >> >> > getting
>>>> >> >> >> >> >> > the
>>>> >> >> >> >> >> correct voltage from the 5v supply? And I should be
>>>> >> >> >> >> >> getting
>>>>
>>>> >> >> >> >> >> +/-
>>>> >> >> 12V
>>>> >> >> >> >> >> and
>>>> >> >> >> >> >> ground? Are there testpoints visible or is it pretty
>>>> obvious
>>>> >> >> >> >> >> where
>>>> >> >>
>>>> >> >> >> >> >> to
>>>> >> >> >> >> >> test
>>>> >> >> >> >> >> it?
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> > Thanks for the quick reply
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> > --- In emax@yahoogroups.com
>>>> >> >> >> >> >> > <emax%40yahoogroups.com><emax%
>>>> 40yahoogroups.com> <emax%
>>>> >> 40yahoogroups.com> <emax%
>>>> >> >> 40yahoogroups.com> <emax%
>>>> >> >> >> 40yahoogroups.com> <emax%
>>>> >> >> >>
>>>> >> >> >> >> 40yahoogroups.com>, "jammie"
>>>> >> >> >> >>
>>>> >> >> >> >> >> <jammie.emma@> wrote:
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > check the 5 v supply as this is the control voltage
>>>> >> >> >> >> >> > > of
>>>> >> >> >> >> >> > > the
>>>> >> >> >> filters
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > the cv control gets sent to 1 of the 2300 for fc 1
>>>> >> >> >> >> >> > > for
>>>> >> >> >> >> >> > > resonance
>>>> >> >> >> 1
>>>> >> >> >> >> is
>>>> >> >> >> >> >> for the vca and thhe other is for the dacs for the 8  
>>>> note
>>>> >> >> polyphony
>>>> >> >> >> >> >> each
>>>> >> >> >> >> >> octal sample and hold circuits for each of the  
>>>> functions
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > check to see that you are getting the corect  
>>>> voltage
>>>> for
>>>> >> >> >> operation
>>>> >> >> >> >> of
>>>> >> >> >> >> >> the 2300 or 4051 or smp08
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > if i was to change them then i would upgrade them  
>>>> to
>>>> the
>>>> >> >> >> >> >> > > newer
>>>> >> >> >> >> faster
>>>> >> >> >> >> >> slew rate the smp08 are the best and are from analog
>>>> devices
>>>> >> and
>>>> >> >> >> >> >> are
>>>> >> >> >> >> >> direct
>>>> >> >> >> >> >> replacements for the ssm2300 which are 4051 equivelents
>>>> made
>>>> >> >> >> >> >> by
>>>> >> >> emu
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > the smp08 they have a faster slew rate and have
>>>> >> >> >> >> >> > > faster
>>>> >> >> >> >> >> > > transient
>>>> >> >> >> >> >> response with less distortion
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > you should be getting 12vdc vdd and grnd
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > ----- Original Message -----
>>>> >> >> >> >> >> > > From: preslavl
>>>> >> >> >> >> >> > > To: emax@yahoogroups.com
>>>> >> >> >> >> >> > > <emax%40yahoogroups.com><emax%
>>>> 40yahoogroups.com> <emax%
>>>> >> 40yahoogroups.com> <emax%
>>>> >> >> 40yahoogroups.com> <emax%
>>>> >> >> >> 40yahoogroups.com> <emax%
>>>> >> >> >> >> 40yahoogroups.com>
>>>> >> >> >> >> >> > > Sent: Friday, February 05, 2010 5:54 PM
>>>> >> >> >> >> >> > > Subject: [emax] Emax Problem Diagnosis
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > Hello,
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > I wanted to see if I can get some help diagnosing  
>>>> the
>>>> >> >> >> >> >> > > problem(s)
>>>> >> >> >> >> >> > > of
>>>> >> >> >> >> >> > > an
>>>> >> >> >> >> >> Emax I i just purchased.
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > Here are they symptoms:
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > - No Frequency Cutoff - I calibrated the data  
>>>> slider
>>>> and
>>>> >> >> >> >> >> > > it
>>>> >> >> >> >> registers
>>>> >> >> >> >> >> the frequency cutoff (FC) going up in numbers but you
>>>> cannot
>>>> >> >> >> >> >> hear
>>>> >> >> >> >> >> any
>>>> >> >> >> >> >> change.
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > - No Attack in the ADSR or the filter ADSR - cannot
>>>> hear
>>>> >> >> >> >> >> > > an
>>>> >> >> >> >> >> > > increase
>>>> >> >> >> >>
>>>> >> >> >> >> >> > > in
>>>> >> >> >> >> >> attack even when the values increase.
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > - No Volume - volume slider was calibrated and it
>>>> >> >> >> >> >> > > seems
>>>>
>>>> >> >> >> >> >> > > to
>>>> >> >> work
>>>> >> >> >> >> >> > > but
>>>> >> >> >> >> >> moving it up or down does not make a  
>>>> difference...volume
>>>> >> >> >> >> >> seems
>>>> >> >> >> >> >> to
>>>> >> >> >> >> >> be
>>>> >> >> >> >> >> at
>>>> >> >> >> >> >> 100%.
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > These are pretty much all the symptoms I've notices
>>>> >> >> >> >> >> > > so
>>>> >> >> >> >> >> > > far.
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > Things I've covered so far:
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > - I replaced the 4 SSM 2300 that were in the
>>>> >> >> >> >> >> > > sampler -
>>>> it
>>>> >> >> >> >> >> > > did
>>>> >> >> >> >> >> > > not
>>>> >> >> >> >> >> > > seem
>>>> >> >> >> >> >> to make ANY difference. I replaced the original chips
>>>> >> >> >> >> >> with
>>>> >> >> >> >> >> ones
>>>> >> >> >> >> >> marked:
>>>> >> >> >> >> >> "SSM2300 8652". I purchased these on eBAY. Could this  
>>>> be
>>>> the
>>>> >> >> issue?
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > - I went through the recalibration procedure - no
>>>> change.
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > - I performed the diagnostic tests inside the  
>>>> Master
>>>> menu
>>>> >> >> >> >> >> > > (8,
>>>> >> >> >> >> >> > > 8,
>>>> >> >> >> >> >> > > YES).
>>>> >> >> >> >> >> ERAM and Bank RAM checked out OK and all other tests
>>>> >> >> >> >> >> seemed
>>>>
>>>> >> >> >> >> >> to
>>>> >> >> have
>>>> >> >> >> >> >> passed.
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > Any ideas anyone?
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > Thank you,
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > Preslav
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > >
>>>> ----------------------------------------------------------
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > No virus found in this incoming message.
>>>> >> >> >> >> >> > > Checked by AVG - www.avg.com
>>>> >> >> >> >> >> > > Version: 8.5.435 / Virus Database: 271.1.1/2669 -
>>>> Release
>>>> >> >> Date:
>>>> >> >> >> >> >> 02/05/10 07:35:00
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > [Non-text portions of this message have been  
>>>> removed]
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> >
>>>> ----------------------------------------------------------
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> > No virus found in this incoming message.
>>>> >> >> >> >> >> > Checked by AVG - www.avg.com
>>>> >> >> >> >> >> > Version: 8.5.435 / Virus Database: 271.1.1/2669 -
>>>> >> >> >> >> >> > Release
>>>> >> >> >> >> >> > Date:
>>>> >> >> >> >> >> > 02/05/10
>>>> >> >> >> >> >> 07:35:00
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> > [Non-text portions of this message have been removed]
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >>
>>>> >> >> >> >> >>  
>>>> ----------------------------------------------------------
>>>> >> >> >> >> >>
>>>> >> >> >> >> >> No virus found in this incoming message.
>>>> >> >> >> >> >> Checked by AVG - www.avg.com
>>>> >> >> >> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2669 -  
>>>> Release
>>>> >> >> >> >> >> Date:
>>>> >> >> >> >> >> 02/05/10
>>>> >> >> >> >> >> 07:35:00
>>>> >> >> >> >> >>
>>>> >> >> >> >> >> [Non-text portions of this message have been removed]
>>>> >> >> >> >> >>
>>>> >> >> >> >> >>
>>>> >> >> >> >> >>
>>>> >> >> >> >> >
>>>> >> >> >> >> >
>>>> >> >> >> >> > [Non-text portions of this message have been removed]
>>>> >> >> >> >> >
>>>> >> >> >> >> >
>>>> >> >> >> >> >
>>>> >> >> >> >> > ------------------------------------
>>>> >> >> >> >> >
>>>> >> >> >> >> > Emax and Emax II User's Group Website
>>>> >> >> >> >> >
>>>> >> >> >> >> > http://www.silveriafamily.comYahoo! Groups Links
>>>> >> >> >> >>
>>>> >> >> >> >> >
>>>> >> >> >> >> >
>>>> >> >> >> >> >
>>>> >> >> >> >>
>>>> >> >> >> >> ----------------------------------------------------------
>>>> >> >> >> >>
>>>> >> >> >> >> No virus found in this incoming message.
>>>> >> >> >> >> Checked by AVG - www.avg.com
>>>> >> >> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release
>>>> Date:
>>>> >> >> >> >> 02/05/10
>>>> >> >> >> >> 07:35:00
>>>> >> >> >> >>
>>>> >> >> >> >>
>>>> >> >> >> >>
>>>> >> >> >> >
>>>> >> >> >> >
>>>> >> >> >> > [Non-text portions of this message have been removed]
>>>> >> >> >> >
>>>> >> >> >> >
>>>> >> >> >> >
>>>> >> >> >> > ------------------------------------
>>>> >> >> >> >
>>>> >> >> >> > Emax and Emax II User's Group Website
>>>> >> >> >> >
>>>> >> >> >> > http://www.silveriafamily.comYahoo! Groups Links
>>>> >> >> >> >
>>>> >> >> >> >
>>>> >> >> >> >
>>>> >> >> >>
>>>> >> >> >> ----------------------------------------------------------
>>>> >> >> >>
>>>> >> >> >> No virus found in this incoming message.
>>>> >> >> >> Checked by AVG - www.avg.com
>>>> >> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2671 - Release  
>>>> Date:
>>>> >> >> >> 02/06/10
>>>> >> >> >> 07:35:00
>>>> >> >> >>
>>>> >> >> >>
>>>> >> >> >>
>>>> >> >> >
>>>> >> >> >
>>>> >> >> > [Non-text portions of this message have been removed]
>>>> >> >> >
>>>> >> >> >
>>>> >> >> >
>>>> >> >> > ------------------------------------
>>>> >> >> >
>>>> >> >> > Emax and Emax II User's Group Website
>>>> >> >> >
>>>> >> >> > http://www.silveriafamily.comYahoo! Groups Links
>>>> >> >> >
>>>> >> >> >
>>>> >> >> >
>>>> >> >>
>>>> >> >> ----------------------------------------------------------
>>>> >> >>
>>>> >> >> No virus found in this incoming message.
>>>> >> >> Checked by AVG - www.avg.com
>>>> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2675 - Release Date:
>>>> >> >> 02/08/10
>>>> >> >> 07:35:00
>>>> >> >>
>>>> >> >>
>>>> >> >>
>>>> >> >
>>>> >> >
>>>> >> > [Non-text portions of this message have been removed]
>>>> >> >
>>>> >> >
>>>> >> >
>>>> >> > ------------------------------------
>>>> >> >
>>>> >> > Emax and Emax II User's Group Website
>>>> >> >
>>>> >> > http://www.silveriafamily.comYahoo! Groups Links
>>>> >> >
>>>> >> >
>>>> >> >
>>>> >>
>>>> >> ----------------------------------------------------------
>>>> >>
>>>> >> No virus found in this incoming message.
>>>> >> Checked by AVG - www.avg.com
>>>> >> Version: 8.5.435 / Virus Database: 271.1.1/2675 - Release Date:
>>>> 02/08/10
>>>> >> 07:35:00
>>>> >>
>>>> >>
>>>> >>
>>>> >
>>>> >
>>>> > [Non-text portions of this message have been removed]
>>>> >
>>>> >
>>>> >
>>>> > ------------------------------------
>>>> >
>>>> > Emax and Emax II User's Group Website
>>>> >
>>>> > http://www.silveriafamily.comYahoo! Groups Links
>>>> >
>>>> >
>>>> >
>>>>
>>>> ----------------------------------------------------------
>>>>
>>>> No virus found in this incoming message.
>>>> Checked by AVG - www.avg.com
>>>> Version: 8.5.435 / Virus Database: 271.1.1/2676 - Release Date:  
>>>> 02/08/10
>>>> 19:35:00
>>>>
>>>>
>>>>
>>>
>>>
>>
>>
>> [Non-text portions of this message have been removed]
>>
>>
>>
>> ------------------------------------
>>
>> Emax and Emax II User's Group Website
>>
>> http://www.silveriafamily.comYahoo! Groups Links
>>
>>
>>
>
>
> --------------------------------------------------------------------------------
>
>
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 8.5.435 / Virus Database: 271.1.1/2706 - Release Date: 02/23/10
> 19:34:00
>
>

Re: [emax] Re: Emax Problem Diagnosis

2010-02-24 by Malte Krug

OFF TOPIC


@Jammie: I appreciate and respect your expertise in helping us all with
our beloved old samplers, but is it possible for you to use some
punctuation marks in your mailings?

For me, being a non-native english speaker, it's sometimes difficult to
get to the point of your postings.

Again, no offense, just asking,

cu
Malte





Am 24.02.2010, 16:12 Uhr, schrieb jammie <jammie.emma@...>:
Show quoted textHide quoted text
> yes those smp08 are fantastic very fast slew rate the envelopes will be
> snappier as the sample and hold responde quicker to the transients
>
> so it was the 8bit dac for the cv circuit that was at fault there you go
> just goes to show what 20 years of synth servicing does pay off i was  
> glad
> to of helped
>  that fix by a repair tech in usa would have cost you $70 per hour
>
> also as see your upgrading chips the tlo82 can be upgraded to to tle7072  
> i
> have fitted these for the sq80 sq1 eps sampler and the dss1 from the  
> 2448 op
> amps there clean and have a great headroom with out distrortion they are
> direct drop ins as they are now the replacement chip for the tloxx series
> ----- Original Message -----
> From: "Preslav Lefterov" <plefterov@...>
> To: <emax@yahoogroups.com>
> Sent: Wednesday, February 24, 2010 2:39 PM
> Subject: Re: [emax] Re: Emax Problem Diagnosis
>
>
>> Just an update:
>>
>> After purchasing the AD7524 (link below) from Digikey in the US and
>> replacing it, my Emax works now. Thanks to Jammie for all the help in  
>> the
>> diagnosis.
>>
>> Preslav
>>
>> On Tue, Feb 9, 2010 at 4:30 PM, Preslav Lefterov
>> <plefterov@...>wrote:
>>
>>> Digikey seems to have them. Would these variations work:
>>>
>>> *AD7524* :
>>> http://search.digikey.com/scripts/DkSearch/dksus.dll?WT.z_header=search_go&lang=en&site=us&keywords=AD7524JNZ-ND&x=0&y=0
>>> *TL 082:*
>>> http://search.digikey.com/scripts/DkSearch/dksus.dll?WT.z_header=search_go&lang=en&site=us&keywords=TL082CPNS-ND+&x=15&y=15
>>>
>>> I also thought I'd order the SMP08. These are them correct:
>>> http://cgi.ebay.com/Qty-3-Analog-Devices-AD-SMP08F-SMP08-8-ch-S-H-NEW_W0QQitemZ310061621913QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item48311ce299#ht_891wt_1167?
>>>
>>>
>>> Thanks. Will keep you updated with the progress once I replace these  
>>> ICs.
>>>
>>>
>>> Preslav
>>>
>>> On Tue, Feb 9, 2010 at 1:35 PM, jammie
>>> <jammie.emma@...>wrote:
>>>
>>>>
>>>>
>>>> YOU CAN STILL get them rs or digikey farnell
>>>>
>>>> ----- Original Message -----
>>>> From: "Preslav Lefterov" <plefterov@... <plefterov%40gmail.com>>
>>>> To: <emax@yahoogroups.com <emax%40yahoogroups.com>>
>>>> Sent: Tuesday, February 09, 2010 2:02 PM
>>>> Subject: Re: [emax] Re: Emax Problem Diagnosis
>>>>
>>>> > Should I try replacing the AD 7524 and/or the TL082? How hard are
>>>> > these
>>>> to
>>>> > find ?
>>>> >
>>>> >
>>>> > Preslav
>>>> >
>>>> > On Tue, Feb 9, 2010 at 1:56 AM, jammie
>>>> > <jammie.emma@...<jammie.emma%40blueyonder.co.uk>>
>>>>
>>>> > wrote:
>>>> >
>>>> >>
>>>> >>
>>>> >> yes
>>>> >>
>>>> >> it could be a broken cv dac or it could be the opamp the tlo82
>>>> >>
>>>> >> ----- Original Message -----
>>>> >> From: "Preslav Lefterov" <plefterov@...
>>>> >> <plefterov%40gmail.com><plefterov%
>>>> 40gmail.com>>
>>>> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>>>> 40yahoogroups.com>>
>>>> >> Sent: Monday, February 08, 2010 10:01 PM
>>>> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
>>>> >>
>>>> >> > Jammie,
>>>> >> >
>>>> >> > Just tested:
>>>> >> >
>>>> >> > Preset Definition: Realtime controls: Pedal to FC - nothing;  
>>>> Pedal
>>>> >> > to
>>>> >> > Pitch
>>>> >> > - I hear it modulating the pitch.
>>>> >> >
>>>> >> > Then I tried MIDI A to FC:
>>>> >> >
>>>> >> > I assigned MIDI A to FC and modulated that from an external  
>>>> source
>>>> >> > (Cubase).
>>>> >> > When I assigned Midi A to Pitch it works and modulates the Pitch.
>>>> When
>>>> >> > I
>>>> >> > switch to volume/frequency/pan - I get nothing. Should I be
>>>> >> > measuring
>>>>
>>>> >> > the
>>>> >> > voltage across pin 3 of the ssm2300s while I'm modulating with  
>>>> MIDI
>>>> >> > A
>>>> /
>>>> >> > Pedal?
>>>> >> >
>>>> >> >
>>>> >> > Preslav
>>>> >> >
>>>> >> >
>>>> >> > On Mon, Feb 8, 2010 at 2:40 PM, jammie
>>>> >> > <jammie.emma@... <jammie.emma%40blueyonder.co.uk>
>>>> <jammie.emma%40blueyonder.co.uk>>
>>>> >>
>>>> >> > wrote:
>>>> >> >
>>>> >> >>
>>>> >> >>
>>>> >> >> you are not getting any cv voltage its just set to ov
>>>> >> >>
>>>> >> >> that no voltage
>>>> >> >>
>>>> >> >> so no voltage is being sent out by the ssm2300
>>>> >> >>
>>>> >> >> ov means no resonance no volume no filtercut no pan
>>>> >> >>
>>>> >> >> try setting up an external contreol to the filter cutoff to if  
>>>> it
>>>> will
>>>> >> >> sweep
>>>> >> >>
>>>> >> >> ----- Original Message -----
>>>> >> >> From: "Preslav Lefterov"
>>>> >> >> <plefterov@...<plefterov%40gmail.com>
>>>> >> >> <plefterov%40gmail.com><plefterov%
>>>> >> 40gmail.com>>
>>>> >> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>>>> 40yahoogroups.com> <emax%
>>>> >> 40yahoogroups.com>>
>>>> >> >> Sent: Monday, February 08, 2010 7:06 PM
>>>> >> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
>>>> >> >>
>>>> >> >> > Jammie,
>>>> >> >> >
>>>> >> >> > Sorry for the delay. Got the readings:
>>>> >> >> >
>>>> >> >> > *IC41: *
>>>> >> >> >
>>>> >> >> > I have +10V on pin8, and -12V on pin4.
>>>> >> >> >
>>>> >> >> > *IC49:*
>>>> >> >> >
>>>> >> >> > I have +5V on pin 14
>>>> >> >> >
>>>> >> >> > *SSM2300s:*
>>>> >> >> >
>>>> >> >> > On all 4 I consistently have the following readings:
>>>> >> >> >
>>>> >> >> > pin 7 = -4.87V, pin 16 = +10.0V, pin 3 = 0.00V
>>>> >> >> >
>>>> >> >> >
>>>> >> >> > Any other ideas? You mentioned I should be getting 0-5V on  
>>>> pin 3
>>>> >> >> > from
>>>> >> >> > the
>>>> >> >>
>>>> >> >> > CV
>>>> >> >> > voltage on all ssm2300s...how can I test that the voltage goes
>>>> >> >> > up
>>>> to
>>>> >> 5v
>>>> >> >> > since now it stays at 0.00v?
>>>> >> >> >
>>>> >> >> >
>>>> >> >> > Thanks,
>>>> >> >> >
>>>> >> >> > Preslav
>>>> >> >> >
>>>> >> >> >
>>>> >> >> >
>>>> >> >> >
>>>> >> >> > On Sat, Feb 6, 2010 at 4:04 PM, jammie
>>>> >> >> > <jammie.emma@...
>>>> >> >> > <jammie.emma%40blueyonder.co.uk><jammie.emma%
>>>> 40blueyonder.co.uk>
>>>> >> <jammie.emma%40blueyonder.co.uk>>
>>>> >>
>>>> >> >>
>>>> >> >> > wrote:
>>>> >> >> >
>>>> >> >> >>
>>>> >> >> >>
>>>> >> >> >> no pins 8 +10v
>>>> >> >> >> pins 4 -12v are of off the tl082 ic41
>>>> >> >> >>
>>>> >> >> >> pin 3 gnd
>>>> >> >> >> pin 14 +5v are from the ic49 ad7524
>>>> >> >> >>
>>>> >> >> >> i said use pin 3 ground as your reference ground for testing
>>>> >> >> >> the
>>>> >> >> >> pins
>>>> >>
>>>> >> >> >> on
>>>> >> >> >> the
>>>> >> >> >> tl082
>>>> >> >> >>
>>>> >> >> >> pin 3 on the ssm2300 is the cv voltage check this to see if  
>>>> you
>>>> are
>>>> >> >> >> getting
>>>> >> >> >>
>>>> >> >> >> the cv 0-5v
>>>> >> >> >>
>>>> >> >> >> the rest of the pins for the ssm2300 are correct
>>>> >> >> >>
>>>> >> >> >> ----- Original Message -----
>>>> >> >> >> From: "Preslav Lefterov"
>>>> >> >> >> <plefterov@... <plefterov%40gmail.com><plefterov%
>>>> 40gmail.com>
>>>> >> >> >> <plefterov%40gmail.com><plefterov%
>>>> >> >> 40gmail.com>>
>>>> >> >> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>>>> 40yahoogroups.com> <emax%
>>>> >> 40yahoogroups.com> <emax%
>>>> >> >> 40yahoogroups.com>>
>>>> >> >> >> Sent: Saturday, February 06, 2010 8:14 PM
>>>> >> >> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
>>>> >> >> >>
>>>> >> >> >> > Jammie,
>>>> >> >> >> >
>>>> >> >> >> > Ok let me run through this stuff and make sure I understand
>>>> >> >> >> > correctly
>>>> >> >> >> > (I
>>>> >> >> >> > should be able to do all the tests later today or  
>>>> tomorrow):
>>>> >> >> >> >
>>>> >> >> >> > 1. SSM2300s are fed by the *74HCT273* latching circuit. Is
>>>> >> >> >> > this
>>>>
>>>> >> >> >> > the
>>>> >> >> >> > name
>>>> >> >> >> > of
>>>> >> >> >> > the actual circuit as per the schematics or is it a  
>>>> specific
>>>> >> >> >> > IC
>>>>
>>>> >> >> >> > or
>>>> >> >> >> > other
>>>> >> >> >> > component?
>>>> >> >> >> >
>>>> >> >> >> >
>>>> >> >> >> > 2. I need to check the following pins on *IC49 (AD7524): *
>>>> >> >> >> > *
>>>> >> >> >> > ----> pin 8 should be +10V
>>>> >> >> >> > -----> pin 4 should be -12V
>>>> >> >> >> > -----> pin 3 is GROUND
>>>> >> >> >> > -----> pin 14 should be +5V
>>>> >> >> >> >
>>>> >> >> >> > 3. I need to check the following pins on IC41 (tlo82):
>>>> >> >> >> > -----> pin 1 should be 0-5V (this is the output to all
>>>> SSM2300s)
>>>> >> >> >> >
>>>> >> >> >> > Which pin on IC41(tlo82) is GROUND?
>>>> >> >> >> >
>>>> >> >> >> > 4. I need to check the voltages on these pins on all
>>>> >> >> >> > SSM2300s:
>>>> >> >> >> >
>>>> >> >> >> > ----> pin 7 should be -5V
>>>> >> >> >> > ----> pin 8 is GROUND
>>>> >> >> >> > ----> pin 16 should be +10V
>>>> >> >> >> >
>>>> >> >> >> > 5. ICil327 is the -5V regulator, so if I am nto getting  
>>>> this
>>>> >> voltage
>>>> >> >> to
>>>> >> >> >> > the
>>>> >> >> >> > SSM2300s I can try replacing this?
>>>> >> >> >> >
>>>> >> >> >> > 6. Transistor TIP29 / QQ306 is the +10V regulator. It is
>>>> attached
>>>> >> to
>>>> >> >> >> > a
>>>> >> >> >> > heatsink ZE323. If I am not getting +10V I can try  
>>>> replacing
>>>> this
>>>> >> >> >> > transistor?
>>>> >> >> >> >
>>>> >> >> >> >
>>>> >> >> >> > Just wanted to summarize your instructions. I will check  
>>>> all
>>>> this
>>>> >> >> stuff
>>>> >> >> >> as
>>>> >> >> >> > soon as I get to the studio (there is a snowstorm here and  
>>>> my
>>>> car
>>>> >> is
>>>> >> >> >> stuck
>>>> >> >> >> > currently).
>>>> >> >> >> >
>>>> >> >> >> >
>>>> >> >> >> > Thank you for guiding me through this again.
>>>> >> >> >> >
>>>> >> >> >> >
>>>> >> >> >> > Preslav
>>>> >> >> >> >
>>>> >> >> >> >
>>>> >> >> >> >
>>>> >> >> >> > *
>>>> >> >> >> >
>>>> >> >> >> > On Sat, Feb 6, 2010 at 10:26 AM, jammie
>>>> >> >> >> > <jammie.emma@...
>>>> >> >> >> > <jammie.emma%40blueyonder.co.uk><jammie.emma%
>>>> 40blueyonder.co.uk>
>>>> >> >> >> > <jammie.emma%40blueyonder.co.uk><jammie.emma%
>>>> >>
>>>> >> >> 40blueyonder.co.uk>>wrote:
>>>> >> >>
>>>> >> >> >> >
>>>> >> >> >> >>
>>>> >> >> >> >>
>>>> >> >> >> >> the -5v regulator is ic il327
>>>> >> >> >> >>
>>>> >> >> >> >> the tip29 npn power transister does the 10v it is qq306 it
>>>> >> >> >> >> is
>>>> >> >> attached
>>>> >> >> >> to
>>>> >> >> >> >> t0-220 heatsink ze323
>>>> >> >> >> >>
>>>> >> >> >> >> ----- Original Message -----
>>>> >> >> >> >> From: "Preslav Lefterov"
>>>> >> >> >> >> <plefterov@... <plefterov%40gmail.com> <plefterov%
>>>> 40gmail.com><plefterov%
>>>> >> 40gmail.com>
>>>> >> >> >> >> <plefterov%40gmail.com><plefterov%
>>>> >> >> >> 40gmail.com>>
>>>> >> >> >> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>>>> 40yahoogroups.com> <emax%
>>>> >> 40yahoogroups.com> <emax%
>>>> >> >> 40yahoogroups.com> <emax%
>>>> >> >> >> 40yahoogroups.com>>
>>>> >> >> >> >> Sent: Saturday, February 06, 2010 1:35 AM
>>>> >> >> >> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
>>>> >> >> >> >>
>>>> >> >> >> >> > Thanks for your help. Here are the readings:
>>>> >> >> >> >> >
>>>> >> >> >> >> > OR/GR = 12.48V
>>>> >> >> >> >> > YE/GR = 5.0V
>>>> >> >> >> >> > PU/GR = 12.18 (if i measure with red probe on green wire
>>>> >> >> >> >> > and
>>>> >> >> >> >> > black
>>>> >> >> >> >> > probe
>>>> >> >> >> >> > on
>>>> >> >> >> >> > the purple) or -12.18V (if I measure with the red probe  
>>>> on
>>>> the
>>>> >> >> >> >> > purple
>>>> >> >> >> >> > and
>>>> >> >> >> >> > black probe on the green)
>>>> >> >> >> >> >
>>>> >> >> >> >> > The floppy drive works perfectly...it loads the OS and  
>>>> and
>>>> >> >> >> >> > samples/presets.
>>>> >> >> >> >> >
>>>> >> >> >> >> > I appreciate your time.
>>>> >> >> >> >> >
>>>> >> >> >> >> > Preslav
>>>> >> >> >> >> >
>>>> >> >> >> >> > On Fri, Feb 5, 2010 at 7:17 PM, jammie
>>>> >> >> >> >> >  
>>>> <jammie.emma@...<jammie.emma%40blueyonder.co.uk><jammie.emma%
>>>> 40blueyonder.co.uk>
>>>> >> >> >> >> > <jammie.emma%40blueyonder.co.uk><jammie.emma%
>>>> >> >> 40blueyonder.co.uk>
>>>> >> >> >> <jammie.emma%40blueyonder.co.uk>>
>>>> >> >> >>
>>>> >> >> >> >>
>>>> >> >> >> >> > wrote:
>>>> >> >> >> >> >
>>>> >> >> >> >> >>
>>>> >> >> >> >> >>
>>>> >> >> >> >> >>
>>>> >> >> >> >> >> test each wire conection
>>>> >> >> >> >> >>
>>>> >> >> >> >> >> orange and green wires red probe on the orange black
>>>> >> >> >> >> >> probe
>>>> on
>>>> >> >> >> >> >> the
>>>> >> >> >> >> >> green
>>>> >> >> >> >> >> for
>>>> >> >> >> >> >> +12v
>>>> >> >> >> >> >>
>>>> >> >> >> >> >> yellow and green wires red probe for yellow wire black
>>>> probe
>>>> >> >> >> >> >> on
>>>> >> >> the
>>>> >> >> >> >> green
>>>> >> >> >> >> >> wire for +5v
>>>> >> >> >> >> >>
>>>> >> >> >> >> >> purple and green wires red probe on the green wire  
>>>> black
>>>> >> >> >> >> >> probe
>>>> >> >> >> >> >> on
>>>> >> >> >> >> >> the
>>>> >> >> >> >> >> purple wire for -12v
>>>> >> >> >> >> >>
>>>> >> >> >> >> >> test this for me and give me your readings
>>>> >> >> >> >> >>
>>>> >> >> >> >> >> does the floppy drive work as this is the 5v line
>>>> >> >> >> >> >>
>>>> >> >> >> >> >> the 5 v on the mother boards for other circuits gets  
>>>> its
>>>> >> >> >> >> >> 5v
>>>> >> from
>>>> >> >> >> power
>>>> >> >> >> >> >> regulators of the +12v supply
>>>> >> >> >> >> >>
>>>> >> >> >> >> >> ----- Original Message -----
>>>> >> >> >> >> >> From: preslavl
>>>> >> >> >> >> >> To: emax@yahoogroups.com <emax%40yahoogroups.com>  
>>>> <emax%
>>>> 40yahoogroups.com> <emax%
>>>> >> 40yahoogroups.com> <emax%
>>>> >> >> 40yahoogroups.com> <emax%
>>>> >> >> >> 40yahoogroups.com> <emax%
>>>> >> >> >> >> 40yahoogroups.com>
>>>> >> >> >> >> >> Sent: Friday, February 05, 2010 9:37 PM
>>>> >> >> >> >> >> Subject: [emax] Re: Emax Problem Diagnosis
>>>> >> >> >> >> >>
>>>> >> >> >> >> >> So I tried testing the voltages at the connector that
>>>> >> >> >> >> >> goes
>>>> >> >> >> >> >> between
>>>> >> >> >> the
>>>> >> >> >> >> PS
>>>> >> >> >> >> >> board and the CPU Board. I tested on the PS side. If I
>>>> follow
>>>> >> >> >> >> >> the
>>>> >> >> >> >> >> color
>>>> >> >> >> >> >> coding I read in a message on here somewhere: Yellow
>>>> >> >> >> >> >> (+5V),
>>>> >> >> >> >> >> Orange
>>>> >> >> >> >> >> (+12V),
>>>> >> >> >> >> >> Purple (-12V), and Green (0V/Ground).
>>>> >> >> >> >> >>
>>>> >> >> >> >> >> I get nowhere near those voltages...now I might be  
>>>> doing
>>>> this
>>>> >> >> >> >> >> completely
>>>> >> >> >> >> >> wrong, but I get +12V at the Green wire, and 0v at the
>>>> Yellow
>>>> >> >> >> >> >> (where
>>>> >> >> >> I
>>>> >> >> >> >> >> should be getting +5V). I also get +17V at the Orange
>>>> wire...
>>>> >> >> >> >> >>
>>>> >> >> >> >> >> Again, I'm not sure if I'm testing at the correct  
>>>> points.
>>>> By
>>>> >> the
>>>> >> >> >> >> >> way
>>>> >> >> >> >> >> I'm
>>>> >> >> >> >> >> still getting sound out of the Emax so it has not
>>>> >> >> >> >> >> exploded
>>>> in
>>>> >> my
>>>> >> >> >> hands
>>>> >> >> >> >> as
>>>> >> >> >> >> >> of
>>>> >> >> >> >> >> yet.
>>>> >> >> >> >> >>
>>>> >> >> >> >> >> --- In emax@yahoogroups.com
>>>> >> >> >> >> >> <emax%40yahoogroups.com><emax%
>>>> 40yahoogroups.com> <emax%
>>>> >> 40yahoogroups.com> <emax%
>>>> >> >> 40yahoogroups.com> <emax%
>>>> >> >> >> 40yahoogroups.com> <emax%
>>>> >> >> >>
>>>> >> >> >> >> 40yahoogroups.com>, "jammie"
>>>> >> >> >> >>
>>>> >> >> >> >> >> <jammie.emma@...> wrote:
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> > right the cv (control voltages for the filter cutoff
>>>> >> >> >> >> >> > vca
>>>> >> >> >> >> >> > and
>>>> >> >> >> >> >> > resonance
>>>> >> >> >> >> >> are sent by the cv circuit ranging from 0v-5v
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> > which is sent by the cpu for control off the filter
>>>> >> >> >> >> >> > depending
>>>> >>
>>>> >> >> >> >> >> > on
>>>> >> >> >> >> >> > envelope
>>>> >> >> >> >> >> settings or external controllers
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> > now the ssm2300 are sample and hold circuits they  
>>>> send
>>>> out
>>>> >> the
>>>> >> >> >> >> >> > digital
>>>> >> >> >> >> >> info into analog voltages which are sampled then
>>>> transmitted
>>>> >> >> >> >> >> as
>>>> >>
>>>> >> >> >> >> >> a
>>>> >> >> >> >> voltage
>>>> >> >> >> >> >> in
>>>> >> >> >> >> >> the range of 0-5v 0v = 0 resonance 5v = full resonance
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> > or cut off or vca volume
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> > thats what the first 3 ssm2300 deal with
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> > the 4th ssm2300 deals with the digital signal comming
>>>> from
>>>> >> the
>>>> >> >> >> >> >> > dacs
>>>> >> >> >> >> >> > this
>>>> >> >> >> >> >> is the samples that are transmitted from the ram to the
>>>> dacs
>>>> >> and
>>>> >> >> to
>>>> >> >> >> >> >> the
>>>> >> >> >> >> >> samplre and hold circuits which send out voltages 0-5v
>>>> which
>>>> >> >> >> corispond
>>>> >> >> >> >> to
>>>> >> >> >> >> >> the digital sound into analog format
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> > now if you are getting sound out then the ssm2300 for
>>>> that
>>>> >> >> >> >> >> > part
>>>> >> >> >> >> >> > of
>>>> >> >> >> >> >> > the
>>>> >> >> >> >> >> circuit is working it seems to be the cv circuit that  
>>>> you
>>>> are
>>>> >> >> >> >> >> having
>>>> >> >> >> a
>>>> >> >> >> >> >> problem with not being sent into the ssm2300 to be made
>>>> into
>>>> >> the
>>>> >> >> >> >> >> analog
>>>> >> >> >> >> >> control voltages
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> > ----- Original Message -----
>>>> >> >> >> >> >> > From: preslavl
>>>> >> >> >> >> >> > To: emax@yahoogroups.com <emax%40yahoogroups.com>
>>>> >> >> >> >> >> > <emax%
>>>> 40yahoogroups.com> <emax%
>>>> >> 40yahoogroups.com> <emax%
>>>> >> >> 40yahoogroups.com> <emax%
>>>> >> >> >> 40yahoogroups.com> <emax%
>>>> >> >> >> >> 40yahoogroups.com>
>>>> >> >> >> >> >> > Sent: Friday, February 05, 2010 7:18 PM
>>>> >> >> >> >> >> > Subject: [emax] Re: Emax Problem Diagnosis
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> > Let me make sure I understand you correctly:
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> > What you describe is one test: checking that the  
>>>> 2300s
>>>> are
>>>> >> >> >> >> >> > getting
>>>> >> >> >> >> >> > the
>>>> >> >> >> >> >> correct voltage from the 5v supply? And I should be
>>>> >> >> >> >> >> getting
>>>>
>>>> >> >> >> >> >> +/-
>>>> >> >> 12V
>>>> >> >> >> >> >> and
>>>> >> >> >> >> >> ground? Are there testpoints visible or is it pretty
>>>> obvious
>>>> >> >> >> >> >> where
>>>> >> >>
>>>> >> >> >> >> >> to
>>>> >> >> >> >> >> test
>>>> >> >> >> >> >> it?
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> > Thanks for the quick reply
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> > --- In emax@yahoogroups.com
>>>> >> >> >> >> >> > <emax%40yahoogroups.com><emax%
>>>> 40yahoogroups.com> <emax%
>>>> >> 40yahoogroups.com> <emax%
>>>> >> >> 40yahoogroups.com> <emax%
>>>> >> >> >> 40yahoogroups.com> <emax%
>>>> >> >> >>
>>>> >> >> >> >> 40yahoogroups.com>, "jammie"
>>>> >> >> >> >>
>>>> >> >> >> >> >> <jammie.emma@> wrote:
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > check the 5 v supply as this is the control voltage
>>>> >> >> >> >> >> > > of
>>>> >> >> >> >> >> > > the
>>>> >> >> >> filters
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > the cv control gets sent to 1 of the 2300 for fc 1
>>>> >> >> >> >> >> > > for
>>>> >> >> >> >> >> > > resonance
>>>> >> >> >> 1
>>>> >> >> >> >> is
>>>> >> >> >> >> >> for the vca and thhe other is for the dacs for the 8  
>>>> note
>>>> >> >> polyphony
>>>> >> >> >> >> >> each
>>>> >> >> >> >> >> octal sample and hold circuits for each of the  
>>>> functions
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > check to see that you are getting the corect  
>>>> voltage
>>>> for
>>>> >> >> >> operation
>>>> >> >> >> >> of
>>>> >> >> >> >> >> the 2300 or 4051 or smp08
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > if i was to change them then i would upgrade them  
>>>> to
>>>> the
>>>> >> >> >> >> >> > > newer
>>>> >> >> >> >> faster
>>>> >> >> >> >> >> slew rate the smp08 are the best and are from analog
>>>> devices
>>>> >> and
>>>> >> >> >> >> >> are
>>>> >> >> >> >> >> direct
>>>> >> >> >> >> >> replacements for the ssm2300 which are 4051 equivelents
>>>> made
>>>> >> >> >> >> >> by
>>>> >> >> emu
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > the smp08 they have a faster slew rate and have
>>>> >> >> >> >> >> > > faster
>>>> >> >> >> >> >> > > transient
>>>> >> >> >> >> >> response with less distortion
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > you should be getting 12vdc vdd and grnd
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > ----- Original Message -----
>>>> >> >> >> >> >> > > From: preslavl
>>>> >> >> >> >> >> > > To: emax@yahoogroups.com
>>>> >> >> >> >> >> > > <emax%40yahoogroups.com><emax%
>>>> 40yahoogroups.com> <emax%
>>>> >> 40yahoogroups.com> <emax%
>>>> >> >> 40yahoogroups.com> <emax%
>>>> >> >> >> 40yahoogroups.com> <emax%
>>>> >> >> >> >> 40yahoogroups.com>
>>>> >> >> >> >> >> > > Sent: Friday, February 05, 2010 5:54 PM
>>>> >> >> >> >> >> > > Subject: [emax] Emax Problem Diagnosis
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > Hello,
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > I wanted to see if I can get some help diagnosing  
>>>> the
>>>> >> >> >> >> >> > > problem(s)
>>>> >> >> >> >> >> > > of
>>>> >> >> >> >> >> > > an
>>>> >> >> >> >> >> Emax I i just purchased.
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > Here are they symptoms:
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > - No Frequency Cutoff - I calibrated the data  
>>>> slider
>>>> and
>>>> >> >> >> >> >> > > it
>>>> >> >> >> >> registers
>>>> >> >> >> >> >> the frequency cutoff (FC) going up in numbers but you
>>>> cannot
>>>> >> >> >> >> >> hear
>>>> >> >> >> >> >> any
>>>> >> >> >> >> >> change.
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > - No Attack in the ADSR or the filter ADSR - cannot
>>>> hear
>>>> >> >> >> >> >> > > an
>>>> >> >> >> >> >> > > increase
>>>> >> >> >> >>
>>>> >> >> >> >> >> > > in
>>>> >> >> >> >> >> attack even when the values increase.
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > - No Volume - volume slider was calibrated and it
>>>> >> >> >> >> >> > > seems
>>>>
>>>> >> >> >> >> >> > > to
>>>> >> >> work
>>>> >> >> >> >> >> > > but
>>>> >> >> >> >> >> moving it up or down does not make a  
>>>> difference...volume
>>>> >> >> >> >> >> seems
>>>> >> >> >> >> >> to
>>>> >> >> >> >> >> be
>>>> >> >> >> >> >> at
>>>> >> >> >> >> >> 100%.
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > These are pretty much all the symptoms I've notices
>>>> >> >> >> >> >> > > so
>>>> >> >> >> >> >> > > far.
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > Things I've covered so far:
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > - I replaced the 4 SSM 2300 that were in the
>>>> >> >> >> >> >> > > sampler -
>>>> it
>>>> >> >> >> >> >> > > did
>>>> >> >> >> >> >> > > not
>>>> >> >> >> >> >> > > seem
>>>> >> >> >> >> >> to make ANY difference. I replaced the original chips
>>>> >> >> >> >> >> with
>>>> >> >> >> >> >> ones
>>>> >> >> >> >> >> marked:
>>>> >> >> >> >> >> "SSM2300 8652". I purchased these on eBAY. Could this  
>>>> be
>>>> the
>>>> >> >> issue?
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > - I went through the recalibration procedure - no
>>>> change.
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > - I performed the diagnostic tests inside the  
>>>> Master
>>>> menu
>>>> >> >> >> >> >> > > (8,
>>>> >> >> >> >> >> > > 8,
>>>> >> >> >> >> >> > > YES).
>>>> >> >> >> >> >> ERAM and Bank RAM checked out OK and all other tests
>>>> >> >> >> >> >> seemed
>>>>
>>>> >> >> >> >> >> to
>>>> >> >> have
>>>> >> >> >> >> >> passed.
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > Any ideas anyone?
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > Thank you,
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > Preslav
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > >
>>>> ----------------------------------------------------------
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > No virus found in this incoming message.
>>>> >> >> >> >> >> > > Checked by AVG - www.avg.com
>>>> >> >> >> >> >> > > Version: 8.5.435 / Virus Database: 271.1.1/2669 -
>>>> Release
>>>> >> >> Date:
>>>> >> >> >> >> >> 02/05/10 07:35:00
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> > > [Non-text portions of this message have been  
>>>> removed]
>>>> >> >> >> >> >> > >
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> >
>>>> ----------------------------------------------------------
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> > No virus found in this incoming message.
>>>> >> >> >> >> >> > Checked by AVG - www.avg.com
>>>> >> >> >> >> >> > Version: 8.5.435 / Virus Database: 271.1.1/2669 -
>>>> >> >> >> >> >> > Release
>>>> >> >> >> >> >> > Date:
>>>> >> >> >> >> >> > 02/05/10
>>>> >> >> >> >> >> 07:35:00
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >> > [Non-text portions of this message have been removed]
>>>> >> >> >> >> >> >
>>>> >> >> >> >> >>
>>>> >> >> >> >> >>  
>>>> ----------------------------------------------------------
>>>> >> >> >> >> >>
>>>> >> >> >> >> >> No virus found in this incoming message.
>>>> >> >> >> >> >> Checked by AVG - www.avg.com
>>>> >> >> >> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2669 -  
>>>> Release
>>>> >> >> >> >> >> Date:
>>>> >> >> >> >> >> 02/05/10
>>>> >> >> >> >> >> 07:35:00
>>>> >> >> >> >> >>
>>>> >> >> >> >> >> [Non-text portions of this message have been removed]
>>>> >> >> >> >> >>
>>>> >> >> >> >> >>
>>>> >> >> >> >> >>
>>>> >> >> >> >> >
>>>> >> >> >> >> >
>>>> >> >> >> >> > [Non-text portions of this message have been removed]
>>>> >> >> >> >> >
>>>> >> >> >> >> >
>>>> >> >> >> >> >
>>>> >> >> >> >> > ------------------------------------
>>>> >> >> >> >> >
>>>> >> >> >> >> > Emax and Emax II User's Group Website
>>>> >> >> >> >> >
>>>> >> >> >> >> > http://www.silveriafamily.comYahoo! Groups Links
>>>> >> >> >> >>
>>>> >> >> >> >> >
>>>> >> >> >> >> >
>>>> >> >> >> >> >
>>>> >> >> >> >>
>>>> >> >> >> >> ----------------------------------------------------------
>>>> >> >> >> >>
>>>> >> >> >> >> No virus found in this incoming message.
>>>> >> >> >> >> Checked by AVG - www.avg.com
>>>> >> >> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release
>>>> Date:
>>>> >> >> >> >> 02/05/10
>>>> >> >> >> >> 07:35:00
>>>> >> >> >> >>
>>>> >> >> >> >>
>>>> >> >> >> >>
>>>> >> >> >> >
>>>> >> >> >> >
>>>> >> >> >> > [Non-text portions of this message have been removed]
>>>> >> >> >> >
>>>> >> >> >> >
>>>> >> >> >> >
>>>> >> >> >> > ------------------------------------
>>>> >> >> >> >
>>>> >> >> >> > Emax and Emax II User's Group Website
>>>> >> >> >> >
>>>> >> >> >> > http://www.silveriafamily.comYahoo! Groups Links
>>>> >> >> >> >
>>>> >> >> >> >
>>>> >> >> >> >
>>>> >> >> >>
>>>> >> >> >> ----------------------------------------------------------
>>>> >> >> >>
>>>> >> >> >> No virus found in this incoming message.
>>>> >> >> >> Checked by AVG - www.avg.com
>>>> >> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2671 - Release  
>>>> Date:
>>>> >> >> >> 02/06/10
>>>> >> >> >> 07:35:00
>>>> >> >> >>
>>>> >> >> >>
>>>> >> >> >>
>>>> >> >> >
>>>> >> >> >
>>>> >> >> > [Non-text portions of this message have been removed]
>>>> >> >> >
>>>> >> >> >
>>>> >> >> >
>>>> >> >> > ------------------------------------
>>>> >> >> >
>>>> >> >> > Emax and Emax II User's Group Website
>>>> >> >> >
>>>> >> >> > http://www.silveriafamily.comYahoo! Groups Links
>>>> >> >> >
>>>> >> >> >
>>>> >> >> >
>>>> >> >>
>>>> >> >> ----------------------------------------------------------
>>>> >> >>
>>>> >> >> No virus found in this incoming message.
>>>> >> >> Checked by AVG - www.avg.com
>>>> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2675 - Release Date:
>>>> >> >> 02/08/10
>>>> >> >> 07:35:00
>>>> >> >>
>>>> >> >>
>>>> >> >>
>>>> >> >
>>>> >> >
>>>> >> > [Non-text portions of this message have been removed]
>>>> >> >
>>>> >> >
>>>> >> >
>>>> >> > ------------------------------------
>>>> >> >
>>>> >> > Emax and Emax II User's Group Website
>>>> >> >
>>>> >> > http://www.silveriafamily.comYahoo! Groups Links
>>>> >> >
>>>> >> >
>>>> >> >
>>>> >>
>>>> >> ----------------------------------------------------------
>>>> >>
>>>> >> No virus found in this incoming message.
>>>> >> Checked by AVG - www.avg.com
>>>> >> Version: 8.5.435 / Virus Database: 271.1.1/2675 - Release Date:
>>>> 02/08/10
>>>> >> 07:35:00
>>>> >>
>>>> >>
>>>> >>
>>>> >
>>>> >
>>>> > [Non-text portions of this message have been removed]
>>>> >
>>>> >
>>>> >
>>>> > ------------------------------------
>>>> >
>>>> > Emax and Emax II User's Group Website
>>>> >
>>>> > http://www.silveriafamily.comYahoo! Groups Links
>>>> >
>>>> >
>>>> >
>>>>
>>>> ----------------------------------------------------------
>>>>
>>>> No virus found in this incoming message.
>>>> Checked by AVG - www.avg.com
>>>> Version: 8.5.435 / Virus Database: 271.1.1/2676 - Release Date:  
>>>> 02/08/10
>>>> 19:35:00
>>>>
>>>>
>>>>
>>>
>>>
>>
>>
>> [Non-text portions of this message have been removed]
>>
>>
>>
>> ------------------------------------
>>
>> Emax and Emax II User's Group Website
>>
>> http://www.silveriafamily.comYahoo! Groups Links
>>
>>
>>
>
>
> --------------------------------------------------------------------------------
>
>
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 8.5.435 / Virus Database: 271.1.1/2706 - Release Date: 02/23/10
> 19:34:00
>

Re: [emax] Re: Emax Problem Diagnosis

2010-02-24 by Preslav Lefterov

jammie you are indeed the man. i actually got a new replacement of the tlo82
from that link i posted from digikey. it wasn't the tle7072 but I might have
to try that. Still haven't purchased the smp08's but will take care of that.
I guess I will have some spare SSMs. thanks again for the help.



On Wed, Feb 24, 2010 at 10:12 AM, jammie <jammie.emma@...>wrote:

>
>
> yes those smp08 are fantastic very fast slew rate the envelopes will be
> snappier as the sample and hold responde quicker to the transients
>
> so it was the 8bit dac for the cv circuit that was at fault there you go
> just goes to show what 20 years of synth servicing does pay off i was glad
> to of helped
> that fix by a repair tech in usa would have cost you $70 per hour
>
> also as see your upgrading chips the tlo82 can be upgraded to to tle7072 i
> have fitted these for the sq80 sq1 eps sampler and the dss1 from the 2448
> op
> amps there clean and have a great headroom with out distrortion they are
> direct drop ins as they are now the replacement chip for the tloxx series
>
> ----- Original Message -----
> From: "Preslav Lefterov" <plefterov@... <plefterov%40gmail.com>>
> To: <emax@yahoogroups.com <emax%40yahoogroups.com>>
> Sent: Wednesday, February 24, 2010 2:39 PM
> Subject: Re: [emax] Re: Emax Problem Diagnosis
>
> > Just an update:
> >
> > After purchasing the AD7524 (link below) from Digikey in the US and
> > replacing it, my Emax works now. Thanks to Jammie for all the help in the
> > diagnosis.
> >
> > Preslav
> >
> > On Tue, Feb 9, 2010 at 4:30 PM, Preslav Lefterov
> > <plefterov@... <plefterov%40gmail.com>>wrote:
> >
> >> Digikey seems to have them. Would these variations work:
> >>
> >> *AD7524* :
> >>
> http://search.digikey.com/scripts/DkSearch/dksus.dll?WT.z_header=search_go&lang=en&site=us&keywords=AD7524JNZ-ND&x=0&y=0
> >> *TL 082:*
> >>
> http://search.digikey.com/scripts/DkSearch/dksus.dll?WT.z_header=search_go&lang=en&site=us&keywords=TL082CPNS-ND+&x=15&y=15
> >>
> >> I also thought I'd order the SMP08. These are them correct:
> >>
> http://cgi.ebay.com/Qty-3-Analog-Devices-AD-SMP08F-SMP08-8-ch-S-H-NEW_W0QQitemZ310061621913QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item48311ce299#ht_891wt_1167?
> >>
> >>
> >> Thanks. Will keep you updated with the progress once I replace these
> ICs.
> >>
> >>
> >> Preslav
> >>
> >> On Tue, Feb 9, 2010 at 1:35 PM, jammie
> >> <jammie.emma@... <jammie.emma%40blueyonder.co.uk>>wrote:
> >>
> >>>
> >>>
> >>> YOU CAN STILL get them rs or digikey farnell
> >>>
> >>> ----- Original Message -----
> >>> From: "Preslav Lefterov" <plefterov@... <plefterov%40gmail.com><plefterov%
> 40gmail.com>>
> >>> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com>>
> >>> Sent: Tuesday, February 09, 2010 2:02 PM
> >>> Subject: Re: [emax] Re: Emax Problem Diagnosis
> >>>
> >>> > Should I try replacing the AD 7524 and/or the TL082? How hard are
> >>> > these
> >>> to
> >>> > find ?
> >>> >
> >>> >
> >>> > Preslav
> >>> >
> >>> > On Tue, Feb 9, 2010 at 1:56 AM, jammie
> >>> > <jammie.emma@....uk <jammie.emma%40blueyonder.co.uk>
> <jammie.emma%40blueyonder.co.uk>>
> >>>
> >>> > wrote:
> >>> >
> >>> >>
> >>> >>
> >>> >> yes
> >>> >>
> >>> >> it could be a broken cv dac or it could be the opamp the tlo82
> >>> >>
> >>> >> ----- Original Message -----
> >>> >> From: "Preslav Lefterov" <plefterov@...<plefterov%40gmail.com>
> >>> >> <plefterov%40gmail.com><plefterov%
> >>> 40gmail.com>>
> >>> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com> <emax%
> >>> 40yahoogroups.com>>
> >>> >> Sent: Monday, February 08, 2010 10:01 PM
> >>> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
> >>> >>
> >>> >> > Jammie,
> >>> >> >
> >>> >> > Just tested:
> >>> >> >
> >>> >> > Preset Definition: Realtime controls: Pedal to FC - nothing; Pedal
>
> >>> >> > to
> >>> >> > Pitch
> >>> >> > - I hear it modulating the pitch.
> >>> >> >
> >>> >> > Then I tried MIDI A to FC:
> >>> >> >
> >>> >> > I assigned MIDI A to FC and modulated that from an external source
> >>> >> > (Cubase).
> >>> >> > When I assigned Midi A to Pitch it works and modulates the Pitch.
> >>> When
> >>> >> > I
> >>> >> > switch to volume/frequency/pan - I get nothing. Should I be
> >>> >> > measuring
> >>>
> >>> >> > the
> >>> >> > voltage across pin 3 of the ssm2300s while I'm modulating with
> MIDI
> >>> >> > A
> >>> /
> >>> >> > Pedal?
> >>> >> >
> >>> >> >
> >>> >> > Preslav
> >>> >> >
> >>> >> >
> >>> >> > On Mon, Feb 8, 2010 at 2:40 PM, jammie
> >>> >> > <jammie.emma@blueyonder.co.uk <jammie.emma%40blueyonder.co.uk><jammie.emma%
> 40blueyonder.co.uk>
> >>> <jammie.emma%40blueyonder.co.uk>>
> >>> >>
> >>> >> > wrote:
> >>> >> >
> >>> >> >>
> >>> >> >>
> >>> >> >> you are not getting any cv voltage its just set to ov
> >>> >> >>
> >>> >> >> that no voltage
> >>> >> >>
> >>> >> >> so no voltage is being sent out by the ssm2300
> >>> >> >>
> >>> >> >> ov means no resonance no volume no filtercut no pan
> >>> >> >>
> >>> >> >> try setting up an external contreol to the filter cutoff to if it
> >>> will
> >>> >> >> sweep
> >>> >> >>
> >>> >> >> ----- Original Message -----
> >>> >> >> From: "Preslav Lefterov"
> >>> >> >> <plefterov@... <plefterov%40gmail.com><plefterov%
> 40gmail.com>
> >>> >> >> <plefterov%40gmail.com><plefterov%
> >>> >> 40gmail.com>>
> >>> >> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com> <emax%
> >>> 40yahoogroups.com> <emax%
> >>> >> 40yahoogroups.com>>
> >>> >> >> Sent: Monday, February 08, 2010 7:06 PM
> >>> >> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
> >>> >> >>
> >>> >> >> > Jammie,
> >>> >> >> >
> >>> >> >> > Sorry for the delay. Got the readings:
> >>> >> >> >
> >>> >> >> > *IC41: *
> >>> >> >> >
> >>> >> >> > I have +10V on pin8, and -12V on pin4.
> >>> >> >> >
> >>> >> >> > *IC49:*
> >>> >> >> >
> >>> >> >> > I have +5V on pin 14
> >>> >> >> >
> >>> >> >> > *SSM2300s:*
> >>> >> >> >
> >>> >> >> > On all 4 I consistently have the following readings:
> >>> >> >> >
> >>> >> >> > pin 7 = -4.87V, pin 16 = +10.0V, pin 3 = 0.00V
> >>> >> >> >
> >>> >> >> >
> >>> >> >> > Any other ideas? You mentioned I should be getting 0-5V on pin
> 3
> >>> >> >> > from
> >>> >> >> > the
> >>> >> >>
> >>> >> >> > CV
> >>> >> >> > voltage on all ssm2300s...how can I test that the voltage goes
> >>> >> >> > up
> >>> to
> >>> >> 5v
> >>> >> >> > since now it stays at 0.00v?
> >>> >> >> >
> >>> >> >> >
> >>> >> >> > Thanks,
> >>> >> >> >
> >>> >> >> > Preslav
> >>> >> >> >
> >>> >> >> >
> >>> >> >> >
> >>> >> >> >
> >>> >> >> > On Sat, Feb 6, 2010 at 4:04 PM, jammie
> >>> >> >> > <jammie.emma@... <jammie.emma%40blueyonder.co.uk>
> >>> >> >> > <jammie.emma%40blueyonder.co.uk><jammie.emma%
> >>> 40blueyonder.co.uk>
> >>> >> <jammie.emma%40blueyonder.co.uk>>
> >>> >>
> >>> >> >>
> >>> >> >> > wrote:
> >>> >> >> >
> >>> >> >> >>
> >>> >> >> >>
> >>> >> >> >> no pins 8 +10v
> >>> >> >> >> pins 4 -12v are of off the tl082 ic41
> >>> >> >> >>
> >>> >> >> >> pin 3 gnd
> >>> >> >> >> pin 14 +5v are from the ic49 ad7524
> >>> >> >> >>
> >>> >> >> >> i said use pin 3 ground as your reference ground for testing
> >>> >> >> >> the
> >>> >> >> >> pins
> >>> >>
> >>> >> >> >> on
> >>> >> >> >> the
> >>> >> >> >> tl082
> >>> >> >> >>
> >>> >> >> >> pin 3 on the ssm2300 is the cv voltage check this to see if
> you
> >>> are
> >>> >> >> >> getting
> >>> >> >> >>
> >>> >> >> >> the cv 0-5v
> >>> >> >> >>
> >>> >> >> >> the rest of the pins for the ssm2300 are correct
> >>> >> >> >>
> >>> >> >> >> ----- Original Message -----
> >>> >> >> >> From: "Preslav Lefterov"
> >>> >> >> >> <plefterov@... <plefterov%40gmail.com> <plefterov%
> 40gmail.com><plefterov%
> >>> 40gmail.com>
> >>> >> >> >> <plefterov%40gmail.com><plefterov%
> >>> >> >> 40gmail.com>>
> >>> >> >> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com> <emax%
> >>> 40yahoogroups.com> <emax%
> >>> >> 40yahoogroups.com> <emax%
> >>> >> >> 40yahoogroups.com>>
> >>> >> >> >> Sent: Saturday, February 06, 2010 8:14 PM
> >>> >> >> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
> >>> >> >> >>
> >>> >> >> >> > Jammie,
> >>> >> >> >> >
> >>> >> >> >> > Ok let me run through this stuff and make sure I understand
> >>> >> >> >> > correctly
> >>> >> >> >> > (I
> >>> >> >> >> > should be able to do all the tests later today or tomorrow):
> >>> >> >> >> >
> >>> >> >> >> > 1. SSM2300s are fed by the *74HCT273* latching circuit. Is
> >>> >> >> >> > this
> >>>
> >>> >> >> >> > the
> >>> >> >> >> > name
> >>> >> >> >> > of
> >>> >> >> >> > the actual circuit as per the schematics or is it a specific
>
> >>> >> >> >> > IC
> >>>
> >>> >> >> >> > or
> >>> >> >> >> > other
> >>> >> >> >> > component?
> >>> >> >> >> >
> >>> >> >> >> >
> >>> >> >> >> > 2. I need to check the following pins on *IC49 (AD7524): *
> >>> >> >> >> > *
> >>> >> >> >> > ----> pin 8 should be +10V
> >>> >> >> >> > -----> pin 4 should be -12V
> >>> >> >> >> > -----> pin 3 is GROUND
> >>> >> >> >> > -----> pin 14 should be +5V
> >>> >> >> >> >
> >>> >> >> >> > 3. I need to check the following pins on IC41 (tlo82):
> >>> >> >> >> > -----> pin 1 should be 0-5V (this is the output to all
> >>> SSM2300s)
> >>> >> >> >> >
> >>> >> >> >> > Which pin on IC41(tlo82) is GROUND?
> >>> >> >> >> >
> >>> >> >> >> > 4. I need to check the voltages on these pins on all
> >>> >> >> >> > SSM2300s:
> >>> >> >> >> >
> >>> >> >> >> > ----> pin 7 should be -5V
> >>> >> >> >> > ----> pin 8 is GROUND
> >>> >> >> >> > ----> pin 16 should be +10V
> >>> >> >> >> >
> >>> >> >> >> > 5. ICil327 is the -5V regulator, so if I am nto getting this
> >>> >> voltage
> >>> >> >> to
> >>> >> >> >> > the
> >>> >> >> >> > SSM2300s I can try replacing this?
> >>> >> >> >> >
> >>> >> >> >> > 6. Transistor TIP29 / QQ306 is the +10V regulator. It is
> >>> attached
> >>> >> to
> >>> >> >> >> > a
> >>> >> >> >> > heatsink ZE323. If I am not getting +10V I can try replacing
> >>> this
> >>> >> >> >> > transistor?
> >>> >> >> >> >
> >>> >> >> >> >
> >>> >> >> >> > Just wanted to summarize your instructions. I will check all
> >>> this
> >>> >> >> stuff
> >>> >> >> >> as
> >>> >> >> >> > soon as I get to the studio (there is a snowstorm here and
> my
> >>> car
> >>> >> is
> >>> >> >> >> stuck
> >>> >> >> >> > currently).
> >>> >> >> >> >
> >>> >> >> >> >
> >>> >> >> >> > Thank you for guiding me through this again.
> >>> >> >> >> >
> >>> >> >> >> >
> >>> >> >> >> > Preslav
> >>> >> >> >> >
> >>> >> >> >> >
> >>> >> >> >> >
> >>> >> >> >> > *
> >>> >> >> >> >
> >>> >> >> >> > On Sat, Feb 6, 2010 at 10:26 AM, jammie
> >>> >> >> >> > <jammie.emma@...<jammie.emma%40blueyonder.co.uk>
> >>> >> >> >> > <jammie.emma%40blueyonder.co.uk><jammie.emma%
> >>> 40blueyonder.co.uk>
> >>> >> >> >> > <jammie.emma%40blueyonder.co.uk><jammie.emma%
> >>> >>
> >>> >> >> 40blueyonder.co.uk>>wrote:
> >>> >> >>
> >>> >> >> >> >
> >>> >> >> >> >>
> >>> >> >> >> >>
> >>> >> >> >> >> the -5v regulator is ic il327
> >>> >> >> >> >>
> >>> >> >> >> >> the tip29 npn power transister does the 10v it is qq306 it
> >>> >> >> >> >> is
> >>> >> >> attached
> >>> >> >> >> to
> >>> >> >> >> >> t0-220 heatsink ze323
> >>> >> >> >> >>
> >>> >> >> >> >> ----- Original Message -----
> >>> >> >> >> >> From: "Preslav Lefterov"
> >>> >> >> >> >> <plefterov@gmail.com <plefterov%40gmail.com> <plefterov%
> 40gmail.com> <plefterov%
> >>> 40gmail.com><plefterov%
> >>> >> 40gmail.com>
> >>> >> >> >> >> <plefterov%40gmail.com><plefterov%
> >>> >> >> >> 40gmail.com>>
> >>> >> >> >> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
> 40yahoogroups.com> <emax%
> >>> 40yahoogroups.com> <emax%
> >>> >> 40yahoogroups.com> <emax%
> >>> >> >> 40yahoogroups.com> <emax%
> >>> >> >> >> 40yahoogroups.com>>
> >>> >> >> >> >> Sent: Saturday, February 06, 2010 1:35 AM
> >>> >> >> >> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
> >>> >> >> >> >>
> >>> >> >> >> >> > Thanks for your help. Here are the readings:
> >>> >> >> >> >> >
> >>> >> >> >> >> > OR/GR = 12.48V
> >>> >> >> >> >> > YE/GR = 5.0V
> >>> >> >> >> >> > PU/GR = 12.18 (if i measure with red probe on green wire
> >>> >> >> >> >> > and
> >>> >> >> >> >> > black
> >>> >> >> >> >> > probe
> >>> >> >> >> >> > on
> >>> >> >> >> >> > the purple) or -12.18V (if I measure with the red probe
> on
> >>> the
> >>> >> >> >> >> > purple
> >>> >> >> >> >> > and
> >>> >> >> >> >> > black probe on the green)
> >>> >> >> >> >> >
> >>> >> >> >> >> > The floppy drive works perfectly...it loads the OS and
> and
> >>> >> >> >> >> > samples/presets.
> >>> >> >> >> >> >
> >>> >> >> >> >> > I appreciate your time.
> >>> >> >> >> >> >
> >>> >> >> >> >> > Preslav
> >>> >> >> >> >> >
> >>> >> >> >> >> > On Fri, Feb 5, 2010 at 7:17 PM, jammie
> >>> >> >> >> >> > <jammie.emma@...<jammie.emma%40blueyonder.co.uk>
> <jammie.emma%40blueyonder.co.uk><jammie.emma%
> >>> 40blueyonder.co.uk>
> >>> >> >> >> >> > <jammie.emma%40blueyonder.co.uk><jammie.emma%
> >>> >> >> 40blueyonder.co.uk>
> >>> >> >> >> <jammie.emma%40blueyonder.co.uk>>
> >>> >> >> >>
> >>> >> >> >> >>
> >>> >> >> >> >> > wrote:
> >>> >> >> >> >> >
> >>> >> >> >> >> >>
> >>> >> >> >> >> >>
> >>> >> >> >> >> >>
> >>> >> >> >> >> >> test each wire conection
> >>> >> >> >> >> >>
> >>> >> >> >> >> >> orange and green wires red probe on the orange black
> >>> >> >> >> >> >> probe
> >>> on
> >>> >> >> >> >> >> the
> >>> >> >> >> >> >> green
> >>> >> >> >> >> >> for
> >>> >> >> >> >> >> +12v
> >>> >> >> >> >> >>
> >>> >> >> >> >> >> yellow and green wires red probe for yellow wire black
> >>> probe
> >>> >> >> >> >> >> on
> >>> >> >> the
> >>> >> >> >> >> green
> >>> >> >> >> >> >> wire for +5v
> >>> >> >> >> >> >>
> >>> >> >> >> >> >> purple and green wires red probe on the green wire black
> >>> >> >> >> >> >> probe
> >>> >> >> >> >> >> on
> >>> >> >> >> >> >> the
> >>> >> >> >> >> >> purple wire for -12v
> >>> >> >> >> >> >>
> >>> >> >> >> >> >> test this for me and give me your readings
> >>> >> >> >> >> >>
> >>> >> >> >> >> >> does the floppy drive work as this is the 5v line
> >>> >> >> >> >> >>
> >>> >> >> >> >> >> the 5 v on the mother boards for other circuits gets its
>
> >>> >> >> >> >> >> 5v
> >>> >> from
> >>> >> >> >> power
> >>> >> >> >> >> >> regulators of the +12v supply
> >>> >> >> >> >> >>
> >>> >> >> >> >> >> ----- Original Message -----
> >>> >> >> >> >> >> From: preslavl
> >>> >> >> >> >> >> To: emax@yahoogroups.com <emax%40yahoogroups.com><emax%
> 40yahoogroups.com> <emax%
> >>> 40yahoogroups.com> <emax%
> >>> >> 40yahoogroups.com> <emax%
> >>> >> >> 40yahoogroups.com> <emax%
> >>> >> >> >> 40yahoogroups.com> <emax%
> >>> >> >> >> >> 40yahoogroups.com>
> >>> >> >> >> >> >> Sent: Friday, February 05, 2010 9:37 PM
> >>> >> >> >> >> >> Subject: [emax] Re: Emax Problem Diagnosis
> >>> >> >> >> >> >>
> >>> >> >> >> >> >> So I tried testing the voltages at the connector that
> >>> >> >> >> >> >> goes
> >>> >> >> >> >> >> between
> >>> >> >> >> the
> >>> >> >> >> >> PS
> >>> >> >> >> >> >> board and the CPU Board. I tested on the PS side. If I
> >>> follow
> >>> >> >> >> >> >> the
> >>> >> >> >> >> >> color
> >>> >> >> >> >> >> coding I read in a message on here somewhere: Yellow
> >>> >> >> >> >> >> (+5V),
> >>> >> >> >> >> >> Orange
> >>> >> >> >> >> >> (+12V),
> >>> >> >> >> >> >> Purple (-12V), and Green (0V/Ground).
> >>> >> >> >> >> >>
> >>> >> >> >> >> >> I get nowhere near those voltages...now I might be doing
> >>> this
> >>> >> >> >> >> >> completely
> >>> >> >> >> >> >> wrong, but I get +12V at the Green wire, and 0v at the
> >>> Yellow
> >>> >> >> >> >> >> (where
> >>> >> >> >> I
> >>> >> >> >> >> >> should be getting +5V). I also get +17V at the Orange
> >>> wire...
> >>> >> >> >> >> >>
> >>> >> >> >> >> >> Again, I'm not sure if I'm testing at the correct
> points.
> >>> By
> >>> >> the
> >>> >> >> >> >> >> way
> >>> >> >> >> >> >> I'm
> >>> >> >> >> >> >> still getting sound out of the Emax so it has not
> >>> >> >> >> >> >> exploded
> >>> in
> >>> >> my
> >>> >> >> >> hands
> >>> >> >> >> >> as
> >>> >> >> >> >> >> of
> >>> >> >> >> >> >> yet.
> >>> >> >> >> >> >>
> >>> >> >> >> >> >> --- In emax@yahoogroups.com <emax%40yahoogroups.com>
> >>> >> >> >> >> >> <emax%40yahoogroups.com><emax%
> >>> 40yahoogroups.com> <emax%
> >>> >> 40yahoogroups.com> <emax%
> >>> >> >> 40yahoogroups.com> <emax%
> >>> >> >> >> 40yahoogroups.com> <emax%
> >>> >> >> >>
> >>> >> >> >> >> 40yahoogroups.com>, "jammie"
> >>> >> >> >> >>
> >>> >> >> >> >> >> <jammie.emma@...> wrote:
> >>> >> >> >> >> >> >
> >>> >> >> >> >> >> > right the cv (control voltages for the filter cutoff
> >>> >> >> >> >> >> > vca
> >>> >> >> >> >> >> > and
> >>> >> >> >> >> >> > resonance
> >>> >> >> >> >> >> are sent by the cv circuit ranging from 0v-5v
> >>> >> >> >> >> >> >
> >>> >> >> >> >> >> > which is sent by the cpu for control off the filter
> >>> >> >> >> >> >> > depending
> >>> >>
> >>> >> >> >> >> >> > on
> >>> >> >> >> >> >> > envelope
> >>> >> >> >> >> >> settings or external controllers
> >>> >> >> >> >> >> >
> >>> >> >> >> >> >> > now the ssm2300 are sample and hold circuits they send
> >>> out
> >>> >> the
> >>> >> >> >> >> >> > digital
> >>> >> >> >> >> >> info into analog voltages which are sampled then
> >>> transmitted
> >>> >> >> >> >> >> as
> >>> >>
> >>> >> >> >> >> >> a
> >>> >> >> >> >> voltage
> >>> >> >> >> >> >> in
> >>> >> >> >> >> >> the range of 0-5v 0v = 0 resonance 5v = full resonance
> >>> >> >> >> >> >> >
> >>> >> >> >> >> >> > or cut off or vca volume
> >>> >> >> >> >> >> >
> >>> >> >> >> >> >> > thats what the first 3 ssm2300 deal with
> >>> >> >> >> >> >> >
> >>> >> >> >> >> >> > the 4th ssm2300 deals with the digital signal comming
> >>> from
> >>> >> the
> >>> >> >> >> >> >> > dacs
> >>> >> >> >> >> >> > this
> >>> >> >> >> >> >> is the samples that are transmitted from the ram to the
> >>> dacs
> >>> >> and
> >>> >> >> to
> >>> >> >> >> >> >> the
> >>> >> >> >> >> >> samplre and hold circuits which send out voltages 0-5v
> >>> which
> >>> >> >> >> corispond
> >>> >> >> >> >> to
> >>> >> >> >> >> >> the digital sound into analog format
> >>> >> >> >> >> >> >
> >>> >> >> >> >> >> > now if you are getting sound out then the ssm2300 for
> >>> that
> >>> >> >> >> >> >> > part
> >>> >> >> >> >> >> > of
> >>> >> >> >> >> >> > the
> >>> >> >> >> >> >> circuit is working it seems to be the cv circuit that
> you
> >>> are
> >>> >> >> >> >> >> having
> >>> >> >> >> a
> >>> >> >> >> >> >> problem with not being sent into the ssm2300 to be made
> >>> into
> >>> >> the
> >>> >> >> >> >> >> analog
> >>> >> >> >> >> >> control voltages
> >>> >> >> >> >> >> >
> >>> >> >> >> >> >> > ----- Original Message -----
> >>> >> >> >> >> >> > From: preslavl
> >>> >> >> >> >> >> > To: emax@yahoogroups.com <emax%40yahoogroups.com><emax%
> 40yahoogroups.com>
> >>> >> >> >> >> >> > <emax%
> >>> 40yahoogroups.com> <emax%
> >>> >> 40yahoogroups.com> <emax%
> >>> >> >> 40yahoogroups.com> <emax%
> >>> >> >> >> 40yahoogroups.com> <emax%
> >>> >> >> >> >> 40yahoogroups.com>
> >>> >> >> >> >> >> > Sent: Friday, February 05, 2010 7:18 PM
> >>> >> >> >> >> >> > Subject: [emax] Re: Emax Problem Diagnosis
> >>> >> >> >> >> >> >
> >>> >> >> >> >> >> >
> >>> >> >> >> >> >> >
> >>> >> >> >> >> >> > Let me make sure I understand you correctly:
> >>> >> >> >> >> >> >
> >>> >> >> >> >> >> > What you describe is one test: checking that the 2300s
> >>> are
> >>> >> >> >> >> >> > getting
> >>> >> >> >> >> >> > the
> >>> >> >> >> >> >> correct voltage from the 5v supply? And I should be
> >>> >> >> >> >> >> getting
> >>>
> >>> >> >> >> >> >> +/-
> >>> >> >> 12V
> >>> >> >> >> >> >> and
> >>> >> >> >> >> >> ground? Are there testpoints visible or is it pretty
> >>> obvious
> >>> >> >> >> >> >> where
> >>> >> >>
> >>> >> >> >> >> >> to
> >>> >> >> >> >> >> test
> >>> >> >> >> >> >> it?
> >>> >> >> >> >> >> >
> >>> >> >> >> >> >> > Thanks for the quick reply
> >>> >> >> >> >> >> >
> >>> >> >> >> >> >> > --- In emax@yahoogroups.com <emax%40yahoogroups.com>
> >>> >> >> >> >> >> > <emax%40yahoogroups.com><emax%
> >>> 40yahoogroups.com> <emax%
> >>> >> 40yahoogroups.com> <emax%
> >>> >> >> 40yahoogroups.com> <emax%
> >>> >> >> >> 40yahoogroups.com> <emax%
> >>> >> >> >>
> >>> >> >> >> >> 40yahoogroups.com>, "jammie"
> >>> >> >> >> >>
> >>> >> >> >> >> >> <jammie.emma@> wrote:
> >>> >> >> >> >> >> > >
> >>> >> >> >> >> >> > > check the 5 v supply as this is the control voltage
> >>> >> >> >> >> >> > > of
> >>> >> >> >> >> >> > > the
> >>> >> >> >> filters
> >>> >> >> >> >> >> > >
> >>> >> >> >> >> >> > > the cv control gets sent to 1 of the 2300 for fc 1
> >>> >> >> >> >> >> > > for
> >>> >> >> >> >> >> > > resonance
> >>> >> >> >> 1
> >>> >> >> >> >> is
> >>> >> >> >> >> >> for the vca and thhe other is for the dacs for the 8
> note
> >>> >> >> polyphony
> >>> >> >> >> >> >> each
> >>> >> >> >> >> >> octal sample and hold circuits for each of the functions
> >>> >> >> >> >> >> > >
> >>> >> >> >> >> >> > > check to see that you are getting the corect voltage
> >>> for
> >>> >> >> >> operation
> >>> >> >> >> >> of
> >>> >> >> >> >> >> the 2300 or 4051 or smp08
> >>> >> >> >> >> >> > >
> >>> >> >> >> >> >> > > if i was to change them then i would upgrade them to
> >>> the
> >>> >> >> >> >> >> > > newer
> >>> >> >> >> >> faster
> >>> >> >> >> >> >> slew rate the smp08 are the best and are from analog
> >>> devices
> >>> >> and
> >>> >> >> >> >> >> are
> >>> >> >> >> >> >> direct
> >>> >> >> >> >> >> replacements for the ssm2300 which are 4051 equivelents
> >>> made
> >>> >> >> >> >> >> by
> >>> >> >> emu
> >>> >> >> >> >> >> > >
> >>> >> >> >> >> >> > > the smp08 they have a faster slew rate and have
> >>> >> >> >> >> >> > > faster
> >>> >> >> >> >> >> > > transient
> >>> >> >> >> >> >> response with less distortion
> >>> >> >> >> >> >> > >
> >>> >> >> >> >> >> > >
> >>> >> >> >> >> >> > > you should be getting 12vdc vdd and grnd
> >>> >> >> >> >> >> > >
> >>> >> >> >> >> >> > > ----- Original Message -----
> >>> >> >> >> >> >> > > From: preslavl
> >>> >> >> >> >> >> > > To: emax@yahoogroups.com <emax%40yahoogroups.com>
> >>> >> >> >> >> >> > > <emax%40yahoogroups.com><emax%
> >>> 40yahoogroups.com> <emax%
> >>> >> 40yahoogroups.com> <emax%
> >>> >> >> 40yahoogroups.com> <emax%
> >>> >> >> >> 40yahoogroups.com> <emax%
> >>> >> >> >> >> 40yahoogroups.com>
> >>> >> >> >> >> >> > > Sent: Friday, February 05, 2010 5:54 PM
> >>> >> >> >> >> >> > > Subject: [emax] Emax Problem Diagnosis
> >>> >> >> >> >> >> > >
> >>> >> >> >> >> >> > >
> >>> >> >> >> >> >> > >
> >>> >> >> >> >> >> > > Hello,
> >>> >> >> >> >> >> > >
> >>> >> >> >> >> >> > > I wanted to see if I can get some help diagnosing
> the
> >>> >> >> >> >> >> > > problem(s)
> >>> >> >> >> >> >> > > of
> >>> >> >> >> >> >> > > an
> >>> >> >> >> >> >> Emax I i just purchased.
> >>> >> >> >> >> >> > >
> >>> >> >> >> >> >> > > Here are they symptoms:
> >>> >> >> >> >> >> > >
> >>> >> >> >> >> >> > > - No Frequency Cutoff - I calibrated the data slider
> >>> and
> >>> >> >> >> >> >> > > it
> >>> >> >> >> >> registers
> >>> >> >> >> >> >> the frequency cutoff (FC) going up in numbers but you
> >>> cannot
> >>> >> >> >> >> >> hear
> >>> >> >> >> >> >> any
> >>> >> >> >> >> >> change.
> >>> >> >> >> >> >> > >
> >>> >> >> >> >> >> > > - No Attack in the ADSR or the filter ADSR - cannot
> >>> hear
> >>> >> >> >> >> >> > > an
> >>> >> >> >> >> >> > > increase
> >>> >> >> >> >>
> >>> >> >> >> >> >> > > in
> >>> >> >> >> >> >> attack even when the values increase.
> >>> >> >> >> >> >> > >
> >>> >> >> >> >> >> > > - No Volume - volume slider was calibrated and it
> >>> >> >> >> >> >> > > seems
> >>>
> >>> >> >> >> >> >> > > to
> >>> >> >> work
> >>> >> >> >> >> >> > > but
> >>> >> >> >> >> >> moving it up or down does not make a difference...volume
> >>> >> >> >> >> >> seems
> >>> >> >> >> >> >> to
> >>> >> >> >> >> >> be
> >>> >> >> >> >> >> at
> >>> >> >> >> >> >> 100%.
> >>> >> >> >> >> >> > >
> >>> >> >> >> >> >> > > These are pretty much all the symptoms I've notices
> >>> >> >> >> >> >> > > so
> >>> >> >> >> >> >> > > far.
> >>> >> >> >> >> >> > >
> >>> >> >> >> >> >> > > Things I've covered so far:
> >>> >> >> >> >> >> > >
> >>> >> >> >> >> >> > > - I replaced the 4 SSM 2300 that were in the
> >>> >> >> >> >> >> > > sampler -
> >>> it
> >>> >> >> >> >> >> > > did
> >>> >> >> >> >> >> > > not
> >>> >> >> >> >> >> > > seem
> >>> >> >> >> >> >> to make ANY difference. I replaced the original chips
> >>> >> >> >> >> >> with
> >>> >> >> >> >> >> ones
> >>> >> >> >> >> >> marked:
> >>> >> >> >> >> >> "SSM2300 8652". I purchased these on eBAY. Could this be
> >>> the
> >>> >> >> issue?
> >>> >> >> >> >> >> > >
> >>> >> >> >> >> >> > > - I went through the recalibration procedure - no
> >>> change.
> >>> >> >> >> >> >> > >
> >>> >> >> >> >> >> > > - I performed the diagnostic tests inside the Master
> >>> menu
> >>> >> >> >> >> >> > > (8,
> >>> >> >> >> >> >> > > 8,
> >>> >> >> >> >> >> > > YES).
> >>> >> >> >> >> >> ERAM and Bank RAM checked out OK and all other tests
> >>> >> >> >> >> >> seemed
> >>>
> >>> >> >> >> >> >> to
> >>> >> >> have
> >>> >> >> >> >> >> passed.
> >>> >> >> >> >> >> > >
> >>> >> >> >> >> >> > > Any ideas anyone?
> >>> >> >> >> >> >> > >
> >>> >> >> >> >> >> > > Thank you,
> >>> >> >> >> >> >> > >
> >>> >> >> >> >> >> > > Preslav
> >>> >> >> >> >> >> > >
> >>> >> >> >> >> >> > >
> >>> >> >> >> >> >> > >
> >>> >> >> >> >> >> > >
> >>> >> >> >> >> >> > >
> >>> >> >> >> >> >> > >
> >>> >> >> >> >> >> > >
> >>> ----------------------------------------------------------
> >>> >> >> >> >> >> > >
> >>> >> >> >> >> >> > >
> >>> >> >> >> >> >> > >
> >>> >> >> >> >> >> > > No virus found in this incoming message.
> >>> >> >> >> >> >> > > Checked by AVG - www.avg.com
> >>> >> >> >> >> >> > > Version: 8.5.435 / Virus Database: 271.1.1/2669 -
> >>> Release
> >>> >> >> Date:
> >>> >> >> >> >> >> 02/05/10 07:35:00
> >>> >> >> >> >> >> > >
> >>> >> >> >> >> >> > >
> >>> >> >> >> >> >> > > [Non-text portions of this message have been
> removed]
> >>> >> >> >> >> >> > >
> >>> >> >> >> >> >> >
> >>> >> >> >> >> >> >
> >>> >> >> >> >> >> >
> >>> >> >> >> >> >> >
> >>> >> >> >> >> >> >
> >>> >> >> >> >> >> >
> >>> >> >> >> >> >> >
> >>> ----------------------------------------------------------
> >>> >> >> >> >> >> >
> >>> >> >> >> >> >> >
> >>> >> >> >> >> >> >
> >>> >> >> >> >> >> > No virus found in this incoming message.
> >>> >> >> >> >> >> > Checked by AVG - www.avg.com
> >>> >> >> >> >> >> > Version: 8.5.435 / Virus Database: 271.1.1/2669 -
> >>> >> >> >> >> >> > Release
> >>> >> >> >> >> >> > Date:
> >>> >> >> >> >> >> > 02/05/10
> >>> >> >> >> >> >> 07:35:00
> >>> >> >> >> >> >> >
> >>> >> >> >> >> >> >
> >>> >> >> >> >> >> > [Non-text portions of this message have been removed]
> >>> >> >> >> >> >> >
> >>> >> >> >> >> >>
> >>> >> >> >> >> >>
> ----------------------------------------------------------
> >>> >> >> >> >> >>
> >>> >> >> >> >> >> No virus found in this incoming message.
> >>> >> >> >> >> >> Checked by AVG - www.avg.com
> >>> >> >> >> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2669 -
> Release
> >>> >> >> >> >> >> Date:
> >>> >> >> >> >> >> 02/05/10
> >>> >> >> >> >> >> 07:35:00
> >>> >> >> >> >> >>
> >>> >> >> >> >> >> [Non-text portions of this message have been removed]
> >>> >> >> >> >> >>
> >>> >> >> >> >> >>
> >>> >> >> >> >> >>
> >>> >> >> >> >> >
> >>> >> >> >> >> >
> >>> >> >> >> >> > [Non-text portions of this message have been removed]
> >>> >> >> >> >> >
> >>> >> >> >> >> >
> >>> >> >> >> >> >
> >>> >> >> >> >> > ------------------------------------
> >>> >> >> >> >> >
> >>> >> >> >> >> > Emax and Emax II User's Group Website
> >>> >> >> >> >> >
> >>> >> >> >> >> > http://www.silveriafamily.comYahoo! Groups Links
> >>> >> >> >> >>
> >>> >> >> >> >> >
> >>> >> >> >> >> >
> >>> >> >> >> >> >
> >>> >> >> >> >>
> >>> >> >> >> >> ----------------------------------------------------------
> >>> >> >> >> >>
> >>> >> >> >> >> No virus found in this incoming message.
> >>> >> >> >> >> Checked by AVG - www.avg.com
> >>> >> >> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release
> >>> Date:
> >>> >> >> >> >> 02/05/10
> >>> >> >> >> >> 07:35:00
> >>> >> >> >> >>
> >>> >> >> >> >>
> >>> >> >> >> >>
> >>> >> >> >> >
> >>> >> >> >> >
> >>> >> >> >> > [Non-text portions of this message have been removed]
> >>> >> >> >> >
> >>> >> >> >> >
> >>> >> >> >> >
> >>> >> >> >> > ------------------------------------
> >>> >> >> >> >
> >>> >> >> >> > Emax and Emax II User's Group Website
> >>> >> >> >> >
> >>> >> >> >> > http://www.silveriafamily.comYahoo! Groups Links
> >>> >> >> >> >
> >>> >> >> >> >
> >>> >> >> >> >
> >>> >> >> >>
> >>> >> >> >> ----------------------------------------------------------
> >>> >> >> >>
> >>> >> >> >> No virus found in this incoming message.
> >>> >> >> >> Checked by AVG - www.avg.com
> >>> >> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2671 - Release
> Date:
> >>> >> >> >> 02/06/10
> >>> >> >> >> 07:35:00
> >>> >> >> >>
> >>> >> >> >>
> >>> >> >> >>
> >>> >> >> >
> >>> >> >> >
> >>> >> >> > [Non-text portions of this message have been removed]
> >>> >> >> >
> >>> >> >> >
> >>> >> >> >
> >>> >> >> > ------------------------------------
> >>> >> >> >
> >>> >> >> > Emax and Emax II User's Group Website
> >>> >> >> >
> >>> >> >> > http://www.silveriafamily.comYahoo! Groups Links
> >>> >> >> >
> >>> >> >> >
> >>> >> >> >
> >>> >> >>
> >>> >> >> ----------------------------------------------------------
> >>> >> >>
> >>> >> >> No virus found in this incoming message.
> >>> >> >> Checked by AVG - www.avg.com
> >>> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2675 - Release Date:
> >>> >> >> 02/08/10
> >>> >> >> 07:35:00
> >>> >> >>
> >>> >> >>
> >>> >> >>
> >>> >> >
> >>> >> >
> >>> >> > [Non-text portions of this message have been removed]
> >>> >> >
> >>> >> >
> >>> >> >
> >>> >> > ------------------------------------
> >>> >> >
> >>> >> > Emax and Emax II User's Group Website
> >>> >> >
> >>> >> > http://www.silveriafamily.comYahoo! Groups Links
> >>> >> >
> >>> >> >
> >>> >> >
> >>> >>
> >>> >> ----------------------------------------------------------
> >>> >>
> >>> >> No virus found in this incoming message.
> >>> >> Checked by AVG - www.avg.com
> >>> >> Version: 8.5.435 / Virus Database: 271.1.1/2675 - Release Date:
> >>> 02/08/10
> >>> >> 07:35:00
> >>> >>
> >>> >>
> >>> >>
> >>> >
> >>> >
> >>> > [Non-text portions of this message have been removed]
> >>> >
> >>> >
> >>> >
> >>> > ------------------------------------
> >>> >
> >>> > Emax and Emax II User's Group Website
> >>> >
> >>> > http://www.silveriafamily.comYahoo! Groups Links
> >>> >
> >>> >
> >>> >
> >>>
> >>> ----------------------------------------------------------
> >>>
> >>> No virus found in this incoming message.
> >>> Checked by AVG - www.avg.com
> >>> Version: 8.5.435 / Virus Database: 271.1.1/2676 - Release Date:
> 02/08/10
> >>> 19:35:00
> >>>
> >>>
> >>>
> >>
> >>
> >
> >
> > [Non-text portions of this message have been removed]
> >
> >
> >
> > ------------------------------------
> >
> > Emax and Emax II User's Group Website
> >
> > http://www.silveriafamily.comYahoo! Groups Links
> >
> >
> >
>
> ----------------------------------------------------------
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 8.5.435 / Virus Database: 271.1.1/2706 - Release Date: 02/23/10
> 19:34:00
>
>  
>


[Non-text portions of this message have been removed]

Re: [english 100%] Re: [emax] Re: Emax Problem Diagnosis

2010-02-24 by jammie

even tho i speak english im crap at punctuation always have been sorry thats 
why i try to do as many small paragraphs as possible
Show quoted textHide quoted text
----- Original Message ----- 
From: "Malte Krug" <pajacke@...>
To: <emax@yahoogroups.com>
Sent: Wednesday, February 24, 2010 3:57 PM
Subject: Re: [english 100%] Re: [emax] Re: Emax Problem Diagnosis


> OFF TOPIC
>
>
> @Jammie: I appreciate and respect your expertise in helping us all with
> our beloved old samplers, but is it possible for you to use some
> punctuation marks in your mailings?
>
> For me, being a non-native english speaker, it's sometimes difficult to
> get to the point of your postings.
>
> Again, no offense, just asking,
>
> cu
> Malte
>
>
>
>
>
> Am 24.02.2010, 16:12 Uhr, schrieb jammie <jammie.emma@...>:
>
>> yes those smp08 are fantastic very fast slew rate the envelopes will be
>> snappier as the sample and hold responde quicker to the transients
>>
>> so it was the 8bit dac for the cv circuit that was at fault there you go
>> just goes to show what 20 years of synth servicing does pay off i was
>> glad
>> to of helped
>>  that fix by a repair tech in usa would have cost you $70 per hour
>>
>> also as see your upgrading chips the tlo82 can be upgraded to to tle7072
>> i
>> have fitted these for the sq80 sq1 eps sampler and the dss1 from the
>> 2448 op
>> amps there clean and have a great headroom with out distrortion they are
>> direct drop ins as they are now the replacement chip for the tloxx series
>> ----- Original Message -----
>> From: "Preslav Lefterov" <plefterov@...>
>> To: <emax@yahoogroups.com>
>> Sent: Wednesday, February 24, 2010 2:39 PM
>> Subject: Re: [emax] Re: Emax Problem Diagnosis
>>
>>
>>> Just an update:
>>>
>>> After purchasing the AD7524 (link below) from Digikey in the US and
>>> replacing it, my Emax works now. Thanks to Jammie for all the help in
>>> the
>>> diagnosis.
>>>
>>> Preslav
>>>
>>> On Tue, Feb 9, 2010 at 4:30 PM, Preslav Lefterov
>>> <plefterov@...>wrote:
>>>
>>>> Digikey seems to have them. Would these variations work:
>>>>
>>>> *AD7524* :
>>>> http://search.digikey.com/scripts/DkSearch/dksus.dll?WT.z_header=search_go&lang=en&site=us&keywords=AD7524JNZ-ND&x=0&y=0
>>>> *TL 082:*
>>>> http://search.digikey.com/scripts/DkSearch/dksus.dll?WT.z_header=search_go&lang=en&site=us&keywords=TL082CPNS-ND+&x=15&y=15
>>>>
>>>> I also thought I'd order the SMP08. These are them correct:
>>>> http://cgi.ebay.com/Qty-3-Analog-Devices-AD-SMP08F-SMP08-8-ch-S-H-NEW_W0QQitemZ310061621913QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item48311ce299#ht_891wt_1167?
>>>>
>>>>
>>>> Thanks. Will keep you updated with the progress once I replace these
>>>> ICs.
>>>>
>>>>
>>>> Preslav
>>>>
>>>> On Tue, Feb 9, 2010 at 1:35 PM, jammie
>>>> <jammie.emma@...>wrote:
>>>>
>>>>>
>>>>>
>>>>> YOU CAN STILL get them rs or digikey farnell
>>>>>
>>>>> ----- Original Message -----
>>>>> From: "Preslav Lefterov" <plefterov@... <plefterov%40gmail.com>>
>>>>> To: <emax@yahoogroups.com <emax%40yahoogroups.com>>
>>>>> Sent: Tuesday, February 09, 2010 2:02 PM
>>>>> Subject: Re: [emax] Re: Emax Problem Diagnosis
>>>>>
>>>>> > Should I try replacing the AD 7524 and/or the TL082? How hard are
>>>>> > these
>>>>> to
>>>>> > find ?
>>>>> >
>>>>> >
>>>>> > Preslav
>>>>> >
>>>>> > On Tue, Feb 9, 2010 at 1:56 AM, jammie
>>>>> > <jammie.emma@...<jammie.emma%40blueyonder.co.uk>>
>>>>>
>>>>> > wrote:
>>>>> >
>>>>> >>
>>>>> >>
>>>>> >> yes
>>>>> >>
>>>>> >> it could be a broken cv dac or it could be the opamp the tlo82
>>>>> >>
>>>>> >> ----- Original Message -----
>>>>> >> From: "Preslav Lefterov" <plefterov@...
>>>>> >> <plefterov%40gmail.com><plefterov%
>>>>> 40gmail.com>>
>>>>> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>>>>> 40yahoogroups.com>>
>>>>> >> Sent: Monday, February 08, 2010 10:01 PM
>>>>> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
>>>>> >>
>>>>> >> > Jammie,
>>>>> >> >
>>>>> >> > Just tested:
>>>>> >> >
>>>>> >> > Preset Definition: Realtime controls: Pedal to FC - nothing;
>>>>> Pedal
>>>>> >> > to
>>>>> >> > Pitch
>>>>> >> > - I hear it modulating the pitch.
>>>>> >> >
>>>>> >> > Then I tried MIDI A to FC:
>>>>> >> >
>>>>> >> > I assigned MIDI A to FC and modulated that from an external
>>>>> source
>>>>> >> > (Cubase).
>>>>> >> > When I assigned Midi A to Pitch it works and modulates the Pitch.
>>>>> When
>>>>> >> > I
>>>>> >> > switch to volume/frequency/pan - I get nothing. Should I be
>>>>> >> > measuring
>>>>>
>>>>> >> > the
>>>>> >> > voltage across pin 3 of the ssm2300s while I'm modulating with
>>>>> MIDI
>>>>> >> > A
>>>>> /
>>>>> >> > Pedal?
>>>>> >> >
>>>>> >> >
>>>>> >> > Preslav
>>>>> >> >
>>>>> >> >
>>>>> >> > On Mon, Feb 8, 2010 at 2:40 PM, jammie
>>>>> >> > <jammie.emma@... <jammie.emma%40blueyonder.co.uk>
>>>>> <jammie.emma%40blueyonder.co.uk>>
>>>>> >>
>>>>> >> > wrote:
>>>>> >> >
>>>>> >> >>
>>>>> >> >>
>>>>> >> >> you are not getting any cv voltage its just set to ov
>>>>> >> >>
>>>>> >> >> that no voltage
>>>>> >> >>
>>>>> >> >> so no voltage is being sent out by the ssm2300
>>>>> >> >>
>>>>> >> >> ov means no resonance no volume no filtercut no pan
>>>>> >> >>
>>>>> >> >> try setting up an external contreol to the filter cutoff to if
>>>>> it
>>>>> will
>>>>> >> >> sweep
>>>>> >> >>
>>>>> >> >> ----- Original Message -----
>>>>> >> >> From: "Preslav Lefterov"
>>>>> >> >> <plefterov@...<plefterov%40gmail.com>
>>>>> >> >> <plefterov%40gmail.com><plefterov%
>>>>> >> 40gmail.com>>
>>>>> >> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>>>>> 40yahoogroups.com> <emax%
>>>>> >> 40yahoogroups.com>>
>>>>> >> >> Sent: Monday, February 08, 2010 7:06 PM
>>>>> >> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
>>>>> >> >>
>>>>> >> >> > Jammie,
>>>>> >> >> >
>>>>> >> >> > Sorry for the delay. Got the readings:
>>>>> >> >> >
>>>>> >> >> > *IC41: *
>>>>> >> >> >
>>>>> >> >> > I have +10V on pin8, and -12V on pin4.
>>>>> >> >> >
>>>>> >> >> > *IC49:*
>>>>> >> >> >
>>>>> >> >> > I have +5V on pin 14
>>>>> >> >> >
>>>>> >> >> > *SSM2300s:*
>>>>> >> >> >
>>>>> >> >> > On all 4 I consistently have the following readings:
>>>>> >> >> >
>>>>> >> >> > pin 7 = -4.87V, pin 16 = +10.0V, pin 3 = 0.00V
>>>>> >> >> >
>>>>> >> >> >
>>>>> >> >> > Any other ideas? You mentioned I should be getting 0-5V on
>>>>> pin 3
>>>>> >> >> > from
>>>>> >> >> > the
>>>>> >> >>
>>>>> >> >> > CV
>>>>> >> >> > voltage on all ssm2300s...how can I test that the voltage goes
>>>>> >> >> > up
>>>>> to
>>>>> >> 5v
>>>>> >> >> > since now it stays at 0.00v?
>>>>> >> >> >
>>>>> >> >> >
>>>>> >> >> > Thanks,
>>>>> >> >> >
>>>>> >> >> > Preslav
>>>>> >> >> >
>>>>> >> >> >
>>>>> >> >> >
>>>>> >> >> >
>>>>> >> >> > On Sat, Feb 6, 2010 at 4:04 PM, jammie
>>>>> >> >> > <jammie.emma@...
>>>>> >> >> > <jammie.emma%40blueyonder.co.uk><jammie.emma%
>>>>> 40blueyonder.co.uk>
>>>>> >> <jammie.emma%40blueyonder.co.uk>>
>>>>> >>
>>>>> >> >>
>>>>> >> >> > wrote:
>>>>> >> >> >
>>>>> >> >> >>
>>>>> >> >> >>
>>>>> >> >> >> no pins 8 +10v
>>>>> >> >> >> pins 4 -12v are of off the tl082 ic41
>>>>> >> >> >>
>>>>> >> >> >> pin 3 gnd
>>>>> >> >> >> pin 14 +5v are from the ic49 ad7524
>>>>> >> >> >>
>>>>> >> >> >> i said use pin 3 ground as your reference ground for testing
>>>>> >> >> >> the
>>>>> >> >> >> pins
>>>>> >>
>>>>> >> >> >> on
>>>>> >> >> >> the
>>>>> >> >> >> tl082
>>>>> >> >> >>
>>>>> >> >> >> pin 3 on the ssm2300 is the cv voltage check this to see if
>>>>> you
>>>>> are
>>>>> >> >> >> getting
>>>>> >> >> >>
>>>>> >> >> >> the cv 0-5v
>>>>> >> >> >>
>>>>> >> >> >> the rest of the pins for the ssm2300 are correct
>>>>> >> >> >>
>>>>> >> >> >> ----- Original Message -----
>>>>> >> >> >> From: "Preslav Lefterov"
>>>>> >> >> >> <plefterov@... <plefterov%40gmail.com><plefterov%
>>>>> 40gmail.com>
>>>>> >> >> >> <plefterov%40gmail.com><plefterov%
>>>>> >> >> 40gmail.com>>
>>>>> >> >> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>>>>> 40yahoogroups.com> <emax%
>>>>> >> 40yahoogroups.com> <emax%
>>>>> >> >> 40yahoogroups.com>>
>>>>> >> >> >> Sent: Saturday, February 06, 2010 8:14 PM
>>>>> >> >> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
>>>>> >> >> >>
>>>>> >> >> >> > Jammie,
>>>>> >> >> >> >
>>>>> >> >> >> > Ok let me run through this stuff and make sure I understand
>>>>> >> >> >> > correctly
>>>>> >> >> >> > (I
>>>>> >> >> >> > should be able to do all the tests later today or
>>>>> tomorrow):
>>>>> >> >> >> >
>>>>> >> >> >> > 1. SSM2300s are fed by the *74HCT273* latching circuit. Is
>>>>> >> >> >> > this
>>>>>
>>>>> >> >> >> > the
>>>>> >> >> >> > name
>>>>> >> >> >> > of
>>>>> >> >> >> > the actual circuit as per the schematics or is it a
>>>>> specific
>>>>> >> >> >> > IC
>>>>>
>>>>> >> >> >> > or
>>>>> >> >> >> > other
>>>>> >> >> >> > component?
>>>>> >> >> >> >
>>>>> >> >> >> >
>>>>> >> >> >> > 2. I need to check the following pins on *IC49 (AD7524): *
>>>>> >> >> >> > *
>>>>> >> >> >> > ----> pin 8 should be +10V
>>>>> >> >> >> > -----> pin 4 should be -12V
>>>>> >> >> >> > -----> pin 3 is GROUND
>>>>> >> >> >> > -----> pin 14 should be +5V
>>>>> >> >> >> >
>>>>> >> >> >> > 3. I need to check the following pins on IC41 (tlo82):
>>>>> >> >> >> > -----> pin 1 should be 0-5V (this is the output to all
>>>>> SSM2300s)
>>>>> >> >> >> >
>>>>> >> >> >> > Which pin on IC41(tlo82) is GROUND?
>>>>> >> >> >> >
>>>>> >> >> >> > 4. I need to check the voltages on these pins on all
>>>>> >> >> >> > SSM2300s:
>>>>> >> >> >> >
>>>>> >> >> >> > ----> pin 7 should be -5V
>>>>> >> >> >> > ----> pin 8 is GROUND
>>>>> >> >> >> > ----> pin 16 should be +10V
>>>>> >> >> >> >
>>>>> >> >> >> > 5. ICil327 is the -5V regulator, so if I am nto getting
>>>>> this
>>>>> >> voltage
>>>>> >> >> to
>>>>> >> >> >> > the
>>>>> >> >> >> > SSM2300s I can try replacing this?
>>>>> >> >> >> >
>>>>> >> >> >> > 6. Transistor TIP29 / QQ306 is the +10V regulator. It is
>>>>> attached
>>>>> >> to
>>>>> >> >> >> > a
>>>>> >> >> >> > heatsink ZE323. If I am not getting +10V I can try
>>>>> replacing
>>>>> this
>>>>> >> >> >> > transistor?
>>>>> >> >> >> >
>>>>> >> >> >> >
>>>>> >> >> >> > Just wanted to summarize your instructions. I will check
>>>>> all
>>>>> this
>>>>> >> >> stuff
>>>>> >> >> >> as
>>>>> >> >> >> > soon as I get to the studio (there is a snowstorm here and
>>>>> my
>>>>> car
>>>>> >> is
>>>>> >> >> >> stuck
>>>>> >> >> >> > currently).
>>>>> >> >> >> >
>>>>> >> >> >> >
>>>>> >> >> >> > Thank you for guiding me through this again.
>>>>> >> >> >> >
>>>>> >> >> >> >
>>>>> >> >> >> > Preslav
>>>>> >> >> >> >
>>>>> >> >> >> >
>>>>> >> >> >> >
>>>>> >> >> >> > *
>>>>> >> >> >> >
>>>>> >> >> >> > On Sat, Feb 6, 2010 at 10:26 AM, jammie
>>>>> >> >> >> > <jammie.emma@...
>>>>> >> >> >> > <jammie.emma%40blueyonder.co.uk><jammie.emma%
>>>>> 40blueyonder.co.uk>
>>>>> >> >> >> > <jammie.emma%40blueyonder.co.uk><jammie.emma%
>>>>> >>
>>>>> >> >> 40blueyonder.co.uk>>wrote:
>>>>> >> >>
>>>>> >> >> >> >
>>>>> >> >> >> >>
>>>>> >> >> >> >>
>>>>> >> >> >> >> the -5v regulator is ic il327
>>>>> >> >> >> >>
>>>>> >> >> >> >> the tip29 npn power transister does the 10v it is qq306 it
>>>>> >> >> >> >> is
>>>>> >> >> attached
>>>>> >> >> >> to
>>>>> >> >> >> >> t0-220 heatsink ze323
>>>>> >> >> >> >>
>>>>> >> >> >> >> ----- Original Message -----
>>>>> >> >> >> >> From: "Preslav Lefterov"
>>>>> >> >> >> >> <plefterov@... <plefterov%40gmail.com> <plefterov%
>>>>> 40gmail.com><plefterov%
>>>>> >> 40gmail.com>
>>>>> >> >> >> >> <plefterov%40gmail.com><plefterov%
>>>>> >> >> >> 40gmail.com>>
>>>>> >> >> >> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>>>>> 40yahoogroups.com> <emax%
>>>>> >> 40yahoogroups.com> <emax%
>>>>> >> >> 40yahoogroups.com> <emax%
>>>>> >> >> >> 40yahoogroups.com>>
>>>>> >> >> >> >> Sent: Saturday, February 06, 2010 1:35 AM
>>>>> >> >> >> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
>>>>> >> >> >> >>
>>>>> >> >> >> >> > Thanks for your help. Here are the readings:
>>>>> >> >> >> >> >
>>>>> >> >> >> >> > OR/GR = 12.48V
>>>>> >> >> >> >> > YE/GR = 5.0V
>>>>> >> >> >> >> > PU/GR = 12.18 (if i measure with red probe on green wire
>>>>> >> >> >> >> > and
>>>>> >> >> >> >> > black
>>>>> >> >> >> >> > probe
>>>>> >> >> >> >> > on
>>>>> >> >> >> >> > the purple) or -12.18V (if I measure with the red probe
>>>>> on
>>>>> the
>>>>> >> >> >> >> > purple
>>>>> >> >> >> >> > and
>>>>> >> >> >> >> > black probe on the green)
>>>>> >> >> >> >> >
>>>>> >> >> >> >> > The floppy drive works perfectly...it loads the OS and
>>>>> and
>>>>> >> >> >> >> > samples/presets.
>>>>> >> >> >> >> >
>>>>> >> >> >> >> > I appreciate your time.
>>>>> >> >> >> >> >
>>>>> >> >> >> >> > Preslav
>>>>> >> >> >> >> >
>>>>> >> >> >> >> > On Fri, Feb 5, 2010 at 7:17 PM, jammie
>>>>> >> >> >> >> >
>>>>> <jammie.emma@...<jammie.emma%40blueyonder.co.uk><jammie.emma%
>>>>> 40blueyonder.co.uk>
>>>>> >> >> >> >> > <jammie.emma%40blueyonder.co.uk><jammie.emma%
>>>>> >> >> 40blueyonder.co.uk>
>>>>> >> >> >> <jammie.emma%40blueyonder.co.uk>>
>>>>> >> >> >>
>>>>> >> >> >> >>
>>>>> >> >> >> >> > wrote:
>>>>> >> >> >> >> >
>>>>> >> >> >> >> >>
>>>>> >> >> >> >> >>
>>>>> >> >> >> >> >>
>>>>> >> >> >> >> >> test each wire conection
>>>>> >> >> >> >> >>
>>>>> >> >> >> >> >> orange and green wires red probe on the orange black
>>>>> >> >> >> >> >> probe
>>>>> on
>>>>> >> >> >> >> >> the
>>>>> >> >> >> >> >> green
>>>>> >> >> >> >> >> for
>>>>> >> >> >> >> >> +12v
>>>>> >> >> >> >> >>
>>>>> >> >> >> >> >> yellow and green wires red probe for yellow wire black
>>>>> probe
>>>>> >> >> >> >> >> on
>>>>> >> >> the
>>>>> >> >> >> >> green
>>>>> >> >> >> >> >> wire for +5v
>>>>> >> >> >> >> >>
>>>>> >> >> >> >> >> purple and green wires red probe on the green wire
>>>>> black
>>>>> >> >> >> >> >> probe
>>>>> >> >> >> >> >> on
>>>>> >> >> >> >> >> the
>>>>> >> >> >> >> >> purple wire for -12v
>>>>> >> >> >> >> >>
>>>>> >> >> >> >> >> test this for me and give me your readings
>>>>> >> >> >> >> >>
>>>>> >> >> >> >> >> does the floppy drive work as this is the 5v line
>>>>> >> >> >> >> >>
>>>>> >> >> >> >> >> the 5 v on the mother boards for other circuits gets
>>>>> its
>>>>> >> >> >> >> >> 5v
>>>>> >> from
>>>>> >> >> >> power
>>>>> >> >> >> >> >> regulators of the +12v supply
>>>>> >> >> >> >> >>
>>>>> >> >> >> >> >> ----- Original Message -----
>>>>> >> >> >> >> >> From: preslavl
>>>>> >> >> >> >> >> To: emax@yahoogroups.com <emax%40yahoogroups.com>
>>>>> <emax%
>>>>> 40yahoogroups.com> <emax%
>>>>> >> 40yahoogroups.com> <emax%
>>>>> >> >> 40yahoogroups.com> <emax%
>>>>> >> >> >> 40yahoogroups.com> <emax%
>>>>> >> >> >> >> 40yahoogroups.com>
>>>>> >> >> >> >> >> Sent: Friday, February 05, 2010 9:37 PM
>>>>> >> >> >> >> >> Subject: [emax] Re: Emax Problem Diagnosis
>>>>> >> >> >> >> >>
>>>>> >> >> >> >> >> So I tried testing the voltages at the connector that
>>>>> >> >> >> >> >> goes
>>>>> >> >> >> >> >> between
>>>>> >> >> >> the
>>>>> >> >> >> >> PS
>>>>> >> >> >> >> >> board and the CPU Board. I tested on the PS side. If I
>>>>> follow
>>>>> >> >> >> >> >> the
>>>>> >> >> >> >> >> color
>>>>> >> >> >> >> >> coding I read in a message on here somewhere: Yellow
>>>>> >> >> >> >> >> (+5V),
>>>>> >> >> >> >> >> Orange
>>>>> >> >> >> >> >> (+12V),
>>>>> >> >> >> >> >> Purple (-12V), and Green (0V/Ground).
>>>>> >> >> >> >> >>
>>>>> >> >> >> >> >> I get nowhere near those voltages...now I might be
>>>>> doing
>>>>> this
>>>>> >> >> >> >> >> completely
>>>>> >> >> >> >> >> wrong, but I get +12V at the Green wire, and 0v at the
>>>>> Yellow
>>>>> >> >> >> >> >> (where
>>>>> >> >> >> I
>>>>> >> >> >> >> >> should be getting +5V). I also get +17V at the Orange
>>>>> wire...
>>>>> >> >> >> >> >>
>>>>> >> >> >> >> >> Again, I'm not sure if I'm testing at the correct
>>>>> points.
>>>>> By
>>>>> >> the
>>>>> >> >> >> >> >> way
>>>>> >> >> >> >> >> I'm
>>>>> >> >> >> >> >> still getting sound out of the Emax so it has not
>>>>> >> >> >> >> >> exploded
>>>>> in
>>>>> >> my
>>>>> >> >> >> hands
>>>>> >> >> >> >> as
>>>>> >> >> >> >> >> of
>>>>> >> >> >> >> >> yet.
>>>>> >> >> >> >> >>
>>>>> >> >> >> >> >> --- In emax@yahoogroups.com
>>>>> >> >> >> >> >> <emax%40yahoogroups.com><emax%
>>>>> 40yahoogroups.com> <emax%
>>>>> >> 40yahoogroups.com> <emax%
>>>>> >> >> 40yahoogroups.com> <emax%
>>>>> >> >> >> 40yahoogroups.com> <emax%
>>>>> >> >> >>
>>>>> >> >> >> >> 40yahoogroups.com>, "jammie"
>>>>> >> >> >> >>
>>>>> >> >> >> >> >> <jammie.emma@...> wrote:
>>>>> >> >> >> >> >> >
>>>>> >> >> >> >> >> > right the cv (control voltages for the filter cutoff
>>>>> >> >> >> >> >> > vca
>>>>> >> >> >> >> >> > and
>>>>> >> >> >> >> >> > resonance
>>>>> >> >> >> >> >> are sent by the cv circuit ranging from 0v-5v
>>>>> >> >> >> >> >> >
>>>>> >> >> >> >> >> > which is sent by the cpu for control off the filter
>>>>> >> >> >> >> >> > depending
>>>>> >>
>>>>> >> >> >> >> >> > on
>>>>> >> >> >> >> >> > envelope
>>>>> >> >> >> >> >> settings or external controllers
>>>>> >> >> >> >> >> >
>>>>> >> >> >> >> >> > now the ssm2300 are sample and hold circuits they
>>>>> send
>>>>> out
>>>>> >> the
>>>>> >> >> >> >> >> > digital
>>>>> >> >> >> >> >> info into analog voltages which are sampled then
>>>>> transmitted
>>>>> >> >> >> >> >> as
>>>>> >>
>>>>> >> >> >> >> >> a
>>>>> >> >> >> >> voltage
>>>>> >> >> >> >> >> in
>>>>> >> >> >> >> >> the range of 0-5v 0v = 0 resonance 5v = full resonance
>>>>> >> >> >> >> >> >
>>>>> >> >> >> >> >> > or cut off or vca volume
>>>>> >> >> >> >> >> >
>>>>> >> >> >> >> >> > thats what the first 3 ssm2300 deal with
>>>>> >> >> >> >> >> >
>>>>> >> >> >> >> >> > the 4th ssm2300 deals with the digital signal comming
>>>>> from
>>>>> >> the
>>>>> >> >> >> >> >> > dacs
>>>>> >> >> >> >> >> > this
>>>>> >> >> >> >> >> is the samples that are transmitted from the ram to the
>>>>> dacs
>>>>> >> and
>>>>> >> >> to
>>>>> >> >> >> >> >> the
>>>>> >> >> >> >> >> samplre and hold circuits which send out voltages 0-5v
>>>>> which
>>>>> >> >> >> corispond
>>>>> >> >> >> >> to
>>>>> >> >> >> >> >> the digital sound into analog format
>>>>> >> >> >> >> >> >
>>>>> >> >> >> >> >> > now if you are getting sound out then the ssm2300 for
>>>>> that
>>>>> >> >> >> >> >> > part
>>>>> >> >> >> >> >> > of
>>>>> >> >> >> >> >> > the
>>>>> >> >> >> >> >> circuit is working it seems to be the cv circuit that
>>>>> you
>>>>> are
>>>>> >> >> >> >> >> having
>>>>> >> >> >> a
>>>>> >> >> >> >> >> problem with not being sent into the ssm2300 to be made
>>>>> into
>>>>> >> the
>>>>> >> >> >> >> >> analog
>>>>> >> >> >> >> >> control voltages
>>>>> >> >> >> >> >> >
>>>>> >> >> >> >> >> > ----- Original Message -----
>>>>> >> >> >> >> >> > From: preslavl
>>>>> >> >> >> >> >> > To: emax@yahoogroups.com <emax%40yahoogroups.com>
>>>>> >> >> >> >> >> > <emax%
>>>>> 40yahoogroups.com> <emax%
>>>>> >> 40yahoogroups.com> <emax%
>>>>> >> >> 40yahoogroups.com> <emax%
>>>>> >> >> >> 40yahoogroups.com> <emax%
>>>>> >> >> >> >> 40yahoogroups.com>
>>>>> >> >> >> >> >> > Sent: Friday, February 05, 2010 7:18 PM
>>>>> >> >> >> >> >> > Subject: [emax] Re: Emax Problem Diagnosis
>>>>> >> >> >> >> >> >
>>>>> >> >> >> >> >> >
>>>>> >> >> >> >> >> >
>>>>> >> >> >> >> >> > Let me make sure I understand you correctly:
>>>>> >> >> >> >> >> >
>>>>> >> >> >> >> >> > What you describe is one test: checking that the
>>>>> 2300s
>>>>> are
>>>>> >> >> >> >> >> > getting
>>>>> >> >> >> >> >> > the
>>>>> >> >> >> >> >> correct voltage from the 5v supply? And I should be
>>>>> >> >> >> >> >> getting
>>>>>
>>>>> >> >> >> >> >> +/-
>>>>> >> >> 12V
>>>>> >> >> >> >> >> and
>>>>> >> >> >> >> >> ground? Are there testpoints visible or is it pretty
>>>>> obvious
>>>>> >> >> >> >> >> where
>>>>> >> >>
>>>>> >> >> >> >> >> to
>>>>> >> >> >> >> >> test
>>>>> >> >> >> >> >> it?
>>>>> >> >> >> >> >> >
>>>>> >> >> >> >> >> > Thanks for the quick reply
>>>>> >> >> >> >> >> >
>>>>> >> >> >> >> >> > --- In emax@yahoogroups.com
>>>>> >> >> >> >> >> > <emax%40yahoogroups.com><emax%
>>>>> 40yahoogroups.com> <emax%
>>>>> >> 40yahoogroups.com> <emax%
>>>>> >> >> 40yahoogroups.com> <emax%
>>>>> >> >> >> 40yahoogroups.com> <emax%
>>>>> >> >> >>
>>>>> >> >> >> >> 40yahoogroups.com>, "jammie"
>>>>> >> >> >> >>
>>>>> >> >> >> >> >> <jammie.emma@> wrote:
>>>>> >> >> >> >> >> > >
>>>>> >> >> >> >> >> > > check the 5 v supply as this is the control voltage
>>>>> >> >> >> >> >> > > of
>>>>> >> >> >> >> >> > > the
>>>>> >> >> >> filters
>>>>> >> >> >> >> >> > >
>>>>> >> >> >> >> >> > > the cv control gets sent to 1 of the 2300 for fc 1
>>>>> >> >> >> >> >> > > for
>>>>> >> >> >> >> >> > > resonance
>>>>> >> >> >> 1
>>>>> >> >> >> >> is
>>>>> >> >> >> >> >> for the vca and thhe other is for the dacs for the 8
>>>>> note
>>>>> >> >> polyphony
>>>>> >> >> >> >> >> each
>>>>> >> >> >> >> >> octal sample and hold circuits for each of the
>>>>> functions
>>>>> >> >> >> >> >> > >
>>>>> >> >> >> >> >> > > check to see that you are getting the corect
>>>>> voltage
>>>>> for
>>>>> >> >> >> operation
>>>>> >> >> >> >> of
>>>>> >> >> >> >> >> the 2300 or 4051 or smp08
>>>>> >> >> >> >> >> > >
>>>>> >> >> >> >> >> > > if i was to change them then i would upgrade them
>>>>> to
>>>>> the
>>>>> >> >> >> >> >> > > newer
>>>>> >> >> >> >> faster
>>>>> >> >> >> >> >> slew rate the smp08 are the best and are from analog
>>>>> devices
>>>>> >> and
>>>>> >> >> >> >> >> are
>>>>> >> >> >> >> >> direct
>>>>> >> >> >> >> >> replacements for the ssm2300 which are 4051 equivelents
>>>>> made
>>>>> >> >> >> >> >> by
>>>>> >> >> emu
>>>>> >> >> >> >> >> > >
>>>>> >> >> >> >> >> > > the smp08 they have a faster slew rate and have
>>>>> >> >> >> >> >> > > faster
>>>>> >> >> >> >> >> > > transient
>>>>> >> >> >> >> >> response with less distortion
>>>>> >> >> >> >> >> > >
>>>>> >> >> >> >> >> > >
>>>>> >> >> >> >> >> > > you should be getting 12vdc vdd and grnd
>>>>> >> >> >> >> >> > >
>>>>> >> >> >> >> >> > > ----- Original Message -----
>>>>> >> >> >> >> >> > > From: preslavl
>>>>> >> >> >> >> >> > > To: emax@yahoogroups.com
>>>>> >> >> >> >> >> > > <emax%40yahoogroups.com><emax%
>>>>> 40yahoogroups.com> <emax%
>>>>> >> 40yahoogroups.com> <emax%
>>>>> >> >> 40yahoogroups.com> <emax%
>>>>> >> >> >> 40yahoogroups.com> <emax%
>>>>> >> >> >> >> 40yahoogroups.com>
>>>>> >> >> >> >> >> > > Sent: Friday, February 05, 2010 5:54 PM
>>>>> >> >> >> >> >> > > Subject: [emax] Emax Problem Diagnosis
>>>>> >> >> >> >> >> > >
>>>>> >> >> >> >> >> > >
>>>>> >> >> >> >> >> > >
>>>>> >> >> >> >> >> > > Hello,
>>>>> >> >> >> >> >> > >
>>>>> >> >> >> >> >> > > I wanted to see if I can get some help diagnosing
>>>>> the
>>>>> >> >> >> >> >> > > problem(s)
>>>>> >> >> >> >> >> > > of
>>>>> >> >> >> >> >> > > an
>>>>> >> >> >> >> >> Emax I i just purchased.
>>>>> >> >> >> >> >> > >
>>>>> >> >> >> >> >> > > Here are they symptoms:
>>>>> >> >> >> >> >> > >
>>>>> >> >> >> >> >> > > - No Frequency Cutoff - I calibrated the data
>>>>> slider
>>>>> and
>>>>> >> >> >> >> >> > > it
>>>>> >> >> >> >> registers
>>>>> >> >> >> >> >> the frequency cutoff (FC) going up in numbers but you
>>>>> cannot
>>>>> >> >> >> >> >> hear
>>>>> >> >> >> >> >> any
>>>>> >> >> >> >> >> change.
>>>>> >> >> >> >> >> > >
>>>>> >> >> >> >> >> > > - No Attack in the ADSR or the filter ADSR - cannot
>>>>> hear
>>>>> >> >> >> >> >> > > an
>>>>> >> >> >> >> >> > > increase
>>>>> >> >> >> >>
>>>>> >> >> >> >> >> > > in
>>>>> >> >> >> >> >> attack even when the values increase.
>>>>> >> >> >> >> >> > >
>>>>> >> >> >> >> >> > > - No Volume - volume slider was calibrated and it
>>>>> >> >> >> >> >> > > seems
>>>>>
>>>>> >> >> >> >> >> > > to
>>>>> >> >> work
>>>>> >> >> >> >> >> > > but
>>>>> >> >> >> >> >> moving it up or down does not make a
>>>>> difference...volume
>>>>> >> >> >> >> >> seems
>>>>> >> >> >> >> >> to
>>>>> >> >> >> >> >> be
>>>>> >> >> >> >> >> at
>>>>> >> >> >> >> >> 100%.
>>>>> >> >> >> >> >> > >
>>>>> >> >> >> >> >> > > These are pretty much all the symptoms I've notices
>>>>> >> >> >> >> >> > > so
>>>>> >> >> >> >> >> > > far.
>>>>> >> >> >> >> >> > >
>>>>> >> >> >> >> >> > > Things I've covered so far:
>>>>> >> >> >> >> >> > >
>>>>> >> >> >> >> >> > > - I replaced the 4 SSM 2300 that were in the
>>>>> >> >> >> >> >> > > sampler -
>>>>> it
>>>>> >> >> >> >> >> > > did
>>>>> >> >> >> >> >> > > not
>>>>> >> >> >> >> >> > > seem
>>>>> >> >> >> >> >> to make ANY difference. I replaced the original chips
>>>>> >> >> >> >> >> with
>>>>> >> >> >> >> >> ones
>>>>> >> >> >> >> >> marked:
>>>>> >> >> >> >> >> "SSM2300 8652". I purchased these on eBAY. Could this
>>>>> be
>>>>> the
>>>>> >> >> issue?
>>>>> >> >> >> >> >> > >
>>>>> >> >> >> >> >> > > - I went through the recalibration procedure - no
>>>>> change.
>>>>> >> >> >> >> >> > >
>>>>> >> >> >> >> >> > > - I performed the diagnostic tests inside the
>>>>> Master
>>>>> menu
>>>>> >> >> >> >> >> > > (8,
>>>>> >> >> >> >> >> > > 8,
>>>>> >> >> >> >> >> > > YES).
>>>>> >> >> >> >> >> ERAM and Bank RAM checked out OK and all other tests
>>>>> >> >> >> >> >> seemed
>>>>>
>>>>> >> >> >> >> >> to
>>>>> >> >> have
>>>>> >> >> >> >> >> passed.
>>>>> >> >> >> >> >> > >
>>>>> >> >> >> >> >> > > Any ideas anyone?
>>>>> >> >> >> >> >> > >
>>>>> >> >> >> >> >> > > Thank you,
>>>>> >> >> >> >> >> > >
>>>>> >> >> >> >> >> > > Preslav
>>>>> >> >> >> >> >> > >
>>>>> >> >> >> >> >> > >
>>>>> >> >> >> >> >> > >
>>>>> >> >> >> >> >> > >
>>>>> >> >> >> >> >> > >
>>>>> >> >> >> >> >> > >
>>>>> >> >> >> >> >> > >
>>>>> ----------------------------------------------------------
>>>>> >> >> >> >> >> > >
>>>>> >> >> >> >> >> > >
>>>>> >> >> >> >> >> > >
>>>>> >> >> >> >> >> > > No virus found in this incoming message.
>>>>> >> >> >> >> >> > > Checked by AVG - www.avg.com
>>>>> >> >> >> >> >> > > Version: 8.5.435 / Virus Database: 271.1.1/2669 -
>>>>> Release
>>>>> >> >> Date:
>>>>> >> >> >> >> >> 02/05/10 07:35:00
>>>>> >> >> >> >> >> > >
>>>>> >> >> >> >> >> > >
>>>>> >> >> >> >> >> > > [Non-text portions of this message have been
>>>>> removed]
>>>>> >> >> >> >> >> > >
>>>>> >> >> >> >> >> >
>>>>> >> >> >> >> >> >
>>>>> >> >> >> >> >> >
>>>>> >> >> >> >> >> >
>>>>> >> >> >> >> >> >
>>>>> >> >> >> >> >> >
>>>>> >> >> >> >> >> >
>>>>> ----------------------------------------------------------
>>>>> >> >> >> >> >> >
>>>>> >> >> >> >> >> >
>>>>> >> >> >> >> >> >
>>>>> >> >> >> >> >> > No virus found in this incoming message.
>>>>> >> >> >> >> >> > Checked by AVG - www.avg.com
>>>>> >> >> >> >> >> > Version: 8.5.435 / Virus Database: 271.1.1/2669 -
>>>>> >> >> >> >> >> > Release
>>>>> >> >> >> >> >> > Date:
>>>>> >> >> >> >> >> > 02/05/10
>>>>> >> >> >> >> >> 07:35:00
>>>>> >> >> >> >> >> >
>>>>> >> >> >> >> >> >
>>>>> >> >> >> >> >> > [Non-text portions of this message have been removed]
>>>>> >> >> >> >> >> >
>>>>> >> >> >> >> >>
>>>>> >> >> >> >> >>
>>>>> ----------------------------------------------------------
>>>>> >> >> >> >> >>
>>>>> >> >> >> >> >> No virus found in this incoming message.
>>>>> >> >> >> >> >> Checked by AVG - www.avg.com
>>>>> >> >> >> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2669 -
>>>>> Release
>>>>> >> >> >> >> >> Date:
>>>>> >> >> >> >> >> 02/05/10
>>>>> >> >> >> >> >> 07:35:00
>>>>> >> >> >> >> >>
>>>>> >> >> >> >> >> [Non-text portions of this message have been removed]
>>>>> >> >> >> >> >>
>>>>> >> >> >> >> >>
>>>>> >> >> >> >> >>
>>>>> >> >> >> >> >
>>>>> >> >> >> >> >
>>>>> >> >> >> >> > [Non-text portions of this message have been removed]
>>>>> >> >> >> >> >
>>>>> >> >> >> >> >
>>>>> >> >> >> >> >
>>>>> >> >> >> >> > ------------------------------------
>>>>> >> >> >> >> >
>>>>> >> >> >> >> > Emax and Emax II User's Group Website
>>>>> >> >> >> >> >
>>>>> >> >> >> >> > http://www.silveriafamily.comYahoo! Groups Links
>>>>> >> >> >> >>
>>>>> >> >> >> >> >
>>>>> >> >> >> >> >
>>>>> >> >> >> >> >
>>>>> >> >> >> >>
>>>>> >> >> >> >> ----------------------------------------------------------
>>>>> >> >> >> >>
>>>>> >> >> >> >> No virus found in this incoming message.
>>>>> >> >> >> >> Checked by AVG - www.avg.com
>>>>> >> >> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2669 - Release
>>>>> Date:
>>>>> >> >> >> >> 02/05/10
>>>>> >> >> >> >> 07:35:00
>>>>> >> >> >> >>
>>>>> >> >> >> >>
>>>>> >> >> >> >>
>>>>> >> >> >> >
>>>>> >> >> >> >
>>>>> >> >> >> > [Non-text portions of this message have been removed]
>>>>> >> >> >> >
>>>>> >> >> >> >
>>>>> >> >> >> >
>>>>> >> >> >> > ------------------------------------
>>>>> >> >> >> >
>>>>> >> >> >> > Emax and Emax II User's Group Website
>>>>> >> >> >> >
>>>>> >> >> >> > http://www.silveriafamily.comYahoo! Groups Links
>>>>> >> >> >> >
>>>>> >> >> >> >
>>>>> >> >> >> >
>>>>> >> >> >>
>>>>> >> >> >> ----------------------------------------------------------
>>>>> >> >> >>
>>>>> >> >> >> No virus found in this incoming message.
>>>>> >> >> >> Checked by AVG - www.avg.com
>>>>> >> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2671 - Release
>>>>> Date:
>>>>> >> >> >> 02/06/10
>>>>> >> >> >> 07:35:00
>>>>> >> >> >>
>>>>> >> >> >>
>>>>> >> >> >>
>>>>> >> >> >
>>>>> >> >> >
>>>>> >> >> > [Non-text portions of this message have been removed]
>>>>> >> >> >
>>>>> >> >> >
>>>>> >> >> >
>>>>> >> >> > ------------------------------------
>>>>> >> >> >
>>>>> >> >> > Emax and Emax II User's Group Website
>>>>> >> >> >
>>>>> >> >> > http://www.silveriafamily.comYahoo! Groups Links
>>>>> >> >> >
>>>>> >> >> >
>>>>> >> >> >
>>>>> >> >>
>>>>> >> >> ----------------------------------------------------------
>>>>> >> >>
>>>>> >> >> No virus found in this incoming message.
>>>>> >> >> Checked by AVG - www.avg.com
>>>>> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2675 - Release Date:
>>>>> >> >> 02/08/10
>>>>> >> >> 07:35:00
>>>>> >> >>
>>>>> >> >>
>>>>> >> >>
>>>>> >> >
>>>>> >> >
>>>>> >> > [Non-text portions of this message have been removed]
>>>>> >> >
>>>>> >> >
>>>>> >> >
>>>>> >> > ------------------------------------
>>>>> >> >
>>>>> >> > Emax and Emax II User's Group Website
>>>>> >> >
>>>>> >> > http://www.silveriafamily.comYahoo! Groups Links
>>>>> >> >
>>>>> >> >
>>>>> >> >
>>>>> >>
>>>>> >> ----------------------------------------------------------
>>>>> >>
>>>>> >> No virus found in this incoming message.
>>>>> >> Checked by AVG - www.avg.com
>>>>> >> Version: 8.5.435 / Virus Database: 271.1.1/2675 - Release Date:
>>>>> 02/08/10
>>>>> >> 07:35:00
>>>>> >>
>>>>> >>
>>>>> >>
>>>>> >
>>>>> >
>>>>> > [Non-text portions of this message have been removed]
>>>>> >
>>>>> >
>>>>> >
>>>>> > ------------------------------------
>>>>> >
>>>>> > Emax and Emax II User's Group Website
>>>>> >
>>>>> > http://www.silveriafamily.comYahoo! Groups Links
>>>>> >
>>>>> >
>>>>> >
>>>>>
>>>>> ----------------------------------------------------------
>>>>>
>>>>> No virus found in this incoming message.
>>>>> Checked by AVG - www.avg.com
>>>>> Version: 8.5.435 / Virus Database: 271.1.1/2676 - Release Date:
>>>>> 02/08/10
>>>>> 19:35:00
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>
>>>
>>> [Non-text portions of this message have been removed]
>>>
>>>
>>>
>>> ------------------------------------
>>>
>>> Emax and Emax II User's Group Website
>>>
>>> http://www.silveriafamily.comYahoo! Groups Links
>>>
>>>
>>>
>>
>>
>> --------------------------------------------------------------------------------
>>
>>
>>
>> No virus found in this incoming message.
>> Checked by AVG - www.avg.com
>> Version: 8.5.435 / Virus Database: 271.1.1/2706 - Release Date: 02/23/10
>> 19:34:00
>>
>>
>
>
>
> ------------------------------------
>
> Emax and Emax II User's Group Website
>
> http://www.silveriafamily.comYahoo! Groups Links
>
>
>


--------------------------------------------------------------------------------



No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 8.5.435 / Virus Database: 271.1.1/2706 - Release Date: 02/23/10 
19:34:00

Re: [english 100%] Re: [english 100%] Re: [emax] Re: Emax Problem Diagnosis

2010-02-24 by Malte Krug

Hi,

a 'full stop' (english-English) aka 'period' (US-English) would help to  
devide the sentences.
                                                                                            ^^^
                                                                                           THIS  
I mean ;-)

Forget about the rest.

Thanx,
Malte



Am 24.02.2010, 17:52 Uhr, schrieb jammie <jammie.emma@...>:
Show quoted textHide quoted text
> even tho i speak english im crap at punctuation always have been sorry  
> thats
> why i try to do as many small paragraphs as possible


> ----- Original Message -----
> From: "Malte Krug" <pajacke@...>
> To: <emax@yahoogroups.com>
> Sent: Wednesday, February 24, 2010 3:57 PM
> Subject: Re: [english 100%] Re: [emax] Re: Emax Problem Diagnosis
>
>
>> OFF TOPIC
>>
>>
>> @Jammie: I appreciate and respect your expertise in helping us all with
>> our beloved old samplers, but is it possible for you to use some
>> punctuation marks in your mailings?
>>
>> For me, being a non-native english speaker, it's sometimes difficult to
>> get to the point of your postings.
>>
>> Again, no offense, just asking,
>>
>> cu
>> Malte
>>
>>
>>
>>
>>
>> Am 24.02.2010, 16:12 Uhr, schrieb jammie <jammie.emma@...>:
>>
>>> yes those smp08 are fantastic very fast slew rate the envelopes will be
>>> snappier as the sample and hold responde quicker to the transients
>>>
>>> so it was the 8bit dac for the cv circuit that was at fault there you  
>>> go
>>> just goes to show what 20 years of synth servicing does pay off i was
>>> glad
>>> to of helped
>>>  that fix by a repair tech in usa would have cost you $70 per hour
>>>
>>> also as see your upgrading chips the tlo82 can be upgraded to to  
>>> tle7072
>>> i
>>> have fitted these for the sq80 sq1 eps sampler and the dss1 from the
>>> 2448 op
>>> amps there clean and have a great headroom with out distrortion they  
>>> are
>>> direct drop ins as they are now the replacement chip for the tloxx  
>>> series
>>> ----- Original Message -----
>>> From: "Preslav Lefterov" <plefterov@...>
>>> To: <emax@yahoogroups.com>
>>> Sent: Wednesday, February 24, 2010 2:39 PM
>>> Subject: Re: [emax] Re: Emax Problem Diagnosis
>>>
>>>
>>>> Just an update:
>>>>
>>>> After purchasing the AD7524 (link below) from Digikey in the US and
>>>> replacing it, my Emax works now. Thanks to Jammie for all the help in
>>>> the
>>>> diagnosis.
>>>>
>>>> Preslav
>>>>
>>>> On Tue, Feb 9, 2010 at 4:30 PM, Preslav Lefterov
>>>> <plefterov@...>wrote:
>>>>
>>>>> Digikey seems to have them. Would these variations work:
>>>>>
>>>>> *AD7524* :
>>>>> http://search.digikey.com/scripts/DkSearch/dksus.dll?WT.z_header=search_go&lang=en&site=us&keywords=AD7524JNZ-ND&x=0&y=0
>>>>> *TL 082:*
>>>>> http://search.digikey.com/scripts/DkSearch/dksus.dll?WT.z_header=search_go&lang=en&site=us&keywords=TL082CPNS-ND+&x=15&y=15
>>>>>
>>>>> I also thought I'd order the SMP08. These are them correct:
>>>>> http://cgi.ebay.com/Qty-3-Analog-Devices-AD-SMP08F-SMP08-8-ch-S-H-NEW_W0QQitemZ310061621913QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item48311ce299#ht_891wt_1167?
>>>>>
>>>>>
>>>>> Thanks. Will keep you updated with the progress once I replace these
>>>>> ICs.
>>>>>
>>>>>
>>>>> Preslav
>>>>>
>>>>> On Tue, Feb 9, 2010 at 1:35 PM, jammie
>>>>> <jammie.emma@...>wrote:
>>>>>
>>>>>>
>>>>>>
>>>>>> YOU CAN STILL get them rs or digikey farnell
>>>>>>
>>>>>> ----- Original Message -----
>>>>>> From: "Preslav Lefterov" <plefterov@...  
>>>>>> <plefterov%40gmail.com>>
>>>>>> To: <emax@yahoogroups.com <emax%40yahoogroups.com>>
>>>>>> Sent: Tuesday, February 09, 2010 2:02 PM
>>>>>> Subject: Re: [emax] Re: Emax Problem Diagnosis
>>>>>>
>>>>>> > Should I try replacing the AD 7524 and/or the TL082? How hard are
>>>>>> > these
>>>>>> to
>>>>>> > find ?
>>>>>> >
>>>>>> >
>>>>>> > Preslav
>>>>>> >
>>>>>> > On Tue, Feb 9, 2010 at 1:56 AM, jammie
>>>>>> > <jammie.emma@...<jammie.emma%40blueyonder.co.uk>>
>>>>>>
>>>>>> > wrote:
>>>>>> >
>>>>>> >>
>>>>>> >>
>>>>>> >> yes
>>>>>> >>
>>>>>> >> it could be a broken cv dac or it could be the opamp the tlo82
>>>>>> >>
>>>>>> >> ----- Original Message -----
>>>>>> >> From: "Preslav Lefterov" <plefterov@...
>>>>>> >> <plefterov%40gmail.com><plefterov%
>>>>>> 40gmail.com>>
>>>>>> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>>>>>> 40yahoogroups.com>>
>>>>>> >> Sent: Monday, February 08, 2010 10:01 PM
>>>>>> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
>>>>>> >>
>>>>>> >> > Jammie,
>>>>>> >> >
>>>>>> >> > Just tested:
>>>>>> >> >
>>>>>> >> > Preset Definition: Realtime controls: Pedal to FC - nothing;
>>>>>> Pedal
>>>>>> >> > to
>>>>>> >> > Pitch
>>>>>> >> > - I hear it modulating the pitch.
>>>>>> >> >
>>>>>> >> > Then I tried MIDI A to FC:
>>>>>> >> >
>>>>>> >> > I assigned MIDI A to FC and modulated that from an external
>>>>>> source
>>>>>> >> > (Cubase).
>>>>>> >> > When I assigned Midi A to Pitch it works and modulates the  
>>>>>> Pitch.
>>>>>> When
>>>>>> >> > I
>>>>>> >> > switch to volume/frequency/pan - I get nothing. Should I be
>>>>>> >> > measuring
>>>>>>
>>>>>> >> > the
>>>>>> >> > voltage across pin 3 of the ssm2300s while I'm modulating with
>>>>>> MIDI
>>>>>> >> > A
>>>>>> /
>>>>>> >> > Pedal?
>>>>>> >> >
>>>>>> >> >
>>>>>> >> > Preslav
>>>>>> >> >
>>>>>> >> >
>>>>>> >> > On Mon, Feb 8, 2010 at 2:40 PM, jammie
>>>>>> >> > <jammie.emma@... <jammie.emma%40blueyonder.co.uk>
>>>>>> <jammie.emma%40blueyonder.co.uk>>
>>>>>> >>
>>>>>> >> > wrote:
>>>>>> >> >
>>>>>> >> >>
>>>>>> >> >>
>>>>>> >> >> you are not getting any cv voltage its just set to ov
>>>>>> >> >>
>>>>>> >> >> that no voltage
>>>>>> >> >>
>>>>>> >> >> so no voltage is being sent out by the ssm2300
>>>>>> >> >>
>>>>>> >> >> ov means no resonance no volume no filtercut no pan
>>>>>> >> >>
>>>>>> >> >> try setting up an external contreol to the filter cutoff to if
>>>>>> it
>>>>>> will
>>>>>> >> >> sweep
>>>>>> >> >>
>>>>>> >> >> ----- Original Message -----
>>>>>> >> >> From: "Preslav Lefterov"
>>>>>> >> >> <plefterov@...<plefterov%40gmail.com>
>>>>>> >> >> <plefterov%40gmail.com><plefterov%
>>>>>> >> 40gmail.com>>
>>>>>> >> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>>>>>> 40yahoogroups.com> <emax%
>>>>>> >> 40yahoogroups.com>>
>>>>>> >> >> Sent: Monday, February 08, 2010 7:06 PM
>>>>>> >> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
>>>>>> >> >>
>>>>>> >> >> > Jammie,
>>>>>> >> >> >
>>>>>> >> >> > Sorry for the delay. Got the readings:
>>>>>> >> >> >
>>>>>> >> >> > *IC41: *
>>>>>> >> >> >
>>>>>> >> >> > I have +10V on pin8, and -12V on pin4.
>>>>>> >> >> >
>>>>>> >> >> > *IC49:*
>>>>>> >> >> >
>>>>>> >> >> > I have +5V on pin 14
>>>>>> >> >> >
>>>>>> >> >> > *SSM2300s:*
>>>>>> >> >> >
>>>>>> >> >> > On all 4 I consistently have the following readings:
>>>>>> >> >> >
>>>>>> >> >> > pin 7 = -4.87V, pin 16 = +10.0V, pin 3 = 0.00V
>>>>>> >> >> >
>>>>>> >> >> >
>>>>>> >> >> > Any other ideas? You mentioned I should be getting 0-5V on
>>>>>> pin 3
>>>>>> >> >> > from
>>>>>> >> >> > the
>>>>>> >> >>
>>>>>> >> >> > CV
>>>>>> >> >> > voltage on all ssm2300s...how can I test that the voltage  
>>>>>> goes
>>>>>> >> >> > up
>>>>>> to
>>>>>> >> 5v
>>>>>> >> >> > since now it stays at 0.00v?
>>>>>> >> >> >
>>>>>> >> >> >
>>>>>> >> >> > Thanks,
>>>>>> >> >> >
>>>>>> >> >> > Preslav
>>>>>> >> >> >
>>>>>> >> >> >
>>>>>> >> >> >
>>>>>> >> >> >
>>>>>> >> >> > On Sat, Feb 6, 2010 at 4:04 PM, jammie
>>>>>> >> >> > <jammie.emma@...
>>>>>> >> >> > <jammie.emma%40blueyonder.co.uk><jammie.emma%
>>>>>> 40blueyonder.co.uk>
>>>>>> >> <jammie.emma%40blueyonder.co.uk>>
>>>>>> >>
>>>>>> >> >>
>>>>>> >> >> > wrote:
>>>>>> >> >> >
>>>>>> >> >> >>
>>>>>> >> >> >>
>>>>>> >> >> >> no pins 8 +10v
>>>>>> >> >> >> pins 4 -12v are of off the tl082 ic41
>>>>>> >> >> >>
>>>>>> >> >> >> pin 3 gnd
>>>>>> >> >> >> pin 14 +5v are from the ic49 ad7524
>>>>>> >> >> >>
>>>>>> >> >> >> i said use pin 3 ground as your reference ground for  
>>>>>> testing
>>>>>> >> >> >> the
>>>>>> >> >> >> pins
>>>>>> >>
>>>>>> >> >> >> on
>>>>>> >> >> >> the
>>>>>> >> >> >> tl082
>>>>>> >> >> >>
>>>>>> >> >> >> pin 3 on the ssm2300 is the cv voltage check this to see if
>>>>>> you
>>>>>> are
>>>>>> >> >> >> getting
>>>>>> >> >> >>
>>>>>> >> >> >> the cv 0-5v
>>>>>> >> >> >>
>>>>>> >> >> >> the rest of the pins for the ssm2300 are correct
>>>>>> >> >> >>
>>>>>> >> >> >> ----- Original Message -----
>>>>>> >> >> >> From: "Preslav Lefterov"
>>>>>> >> >> >> <plefterov@... <plefterov%40gmail.com><plefterov%
>>>>>> 40gmail.com>
>>>>>> >> >> >> <plefterov%40gmail.com><plefterov%
>>>>>> >> >> 40gmail.com>>
>>>>>> >> >> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com> <emax%
>>>>>> 40yahoogroups.com> <emax%
>>>>>> >> 40yahoogroups.com> <emax%
>>>>>> >> >> 40yahoogroups.com>>
>>>>>> >> >> >> Sent: Saturday, February 06, 2010 8:14 PM
>>>>>> >> >> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
>>>>>> >> >> >>
>>>>>> >> >> >> > Jammie,
>>>>>> >> >> >> >
>>>>>> >> >> >> > Ok let me run through this stuff and make sure I  
>>>>>> understand
>>>>>> >> >> >> > correctly
>>>>>> >> >> >> > (I
>>>>>> >> >> >> > should be able to do all the tests later today or
>>>>>> tomorrow):
>>>>>> >> >> >> >
>>>>>> >> >> >> > 1. SSM2300s are fed by the *74HCT273* latching circuit.  
>>>>>> Is
>>>>>> >> >> >> > this
>>>>>>
>>>>>> >> >> >> > the
>>>>>> >> >> >> > name
>>>>>> >> >> >> > of
>>>>>> >> >> >> > the actual circuit as per the schematics or is it a
>>>>>> specific
>>>>>> >> >> >> > IC
>>>>>>
>>>>>> >> >> >> > or
>>>>>> >> >> >> > other
>>>>>> >> >> >> > component?
>>>>>> >> >> >> >
>>>>>> >> >> >> >
>>>>>> >> >> >> > 2. I need to check the following pins on *IC49 (AD7524):  
>>>>>> *
>>>>>> >> >> >> > *
>>>>>> >> >> >> > ----> pin 8 should be +10V
>>>>>> >> >> >> > -----> pin 4 should be -12V
>>>>>> >> >> >> > -----> pin 3 is GROUND
>>>>>> >> >> >> > -----> pin 14 should be +5V
>>>>>> >> >> >> >
>>>>>> >> >> >> > 3. I need to check the following pins on IC41 (tlo82):
>>>>>> >> >> >> > -----> pin 1 should be 0-5V (this is the output to all
>>>>>> SSM2300s)
>>>>>> >> >> >> >
>>>>>> >> >> >> > Which pin on IC41(tlo82) is GROUND?
>>>>>> >> >> >> >
>>>>>> >> >> >> > 4. I need to check the voltages on these pins on all
>>>>>> >> >> >> > SSM2300s:
>>>>>> >> >> >> >
>>>>>> >> >> >> > ----> pin 7 should be -5V
>>>>>> >> >> >> > ----> pin 8 is GROUND
>>>>>> >> >> >> > ----> pin 16 should be +10V
>>>>>> >> >> >> >
>>>>>> >> >> >> > 5. ICil327 is the -5V regulator, so if I am nto getting
>>>>>> this
>>>>>> >> voltage
>>>>>> >> >> to
>>>>>> >> >> >> > the
>>>>>> >> >> >> > SSM2300s I can try replacing this?
>>>>>> >> >> >> >
>>>>>> >> >> >> > 6. Transistor TIP29 / QQ306 is the +10V regulator. It is
>>>>>> attached
>>>>>> >> to
>>>>>> >> >> >> > a
>>>>>> >> >> >> > heatsink ZE323. If I am not getting +10V I can try
>>>>>> replacing
>>>>>> this
>>>>>> >> >> >> > transistor?
>>>>>> >> >> >> >
>>>>>> >> >> >> >
>>>>>> >> >> >> > Just wanted to summarize your instructions. I will check
>>>>>> all
>>>>>> this
>>>>>> >> >> stuff
>>>>>> >> >> >> as
>>>>>> >> >> >> > soon as I get to the studio (there is a snowstorm here  
>>>>>> and
>>>>>> my
>>>>>> car
>>>>>> >> is
>>>>>> >> >> >> stuck
>>>>>> >> >> >> > currently).
>>>>>> >> >> >> >
>>>>>> >> >> >> >
>>>>>> >> >> >> > Thank you for guiding me through this again.
>>>>>> >> >> >> >
>>>>>> >> >> >> >
>>>>>> >> >> >> > Preslav
>>>>>> >> >> >> >
>>>>>> >> >> >> >
>>>>>> >> >> >> >
>>>>>> >> >> >> > *
>>>>>> >> >> >> >
>>>>>> >> >> >> > On Sat, Feb 6, 2010 at 10:26 AM, jammie
>>>>>> >> >> >> > <jammie.emma@...
>>>>>> >> >> >> > <jammie.emma%40blueyonder.co.uk><jammie.emma%
>>>>>> 40blueyonder.co.uk>
>>>>>> >> >> >> > <jammie.emma%40blueyonder.co.uk><jammie.emma%
>>>>>> >>
>>>>>> >> >> 40blueyonder.co.uk>>wrote:
>>>>>> >> >>
>>>>>> >> >> >> >
>>>>>> >> >> >> >>
>>>>>> >> >> >> >>
>>>>>> >> >> >> >> the -5v regulator is ic il327
>>>>>> >> >> >> >>
>>>>>> >> >> >> >> the tip29 npn power transister does the 10v it is qq306  
>>>>>> it
>>>>>> >> >> >> >> is
>>>>>> >> >> attached
>>>>>> >> >> >> to
>>>>>> >> >> >> >> t0-220 heatsink ze323
>>>>>> >> >> >> >>
>>>>>> >> >> >> >> ----- Original Message -----
>>>>>> >> >> >> >> From: "Preslav Lefterov"
>>>>>> >> >> >> >> <plefterov@... <plefterov%40gmail.com> <plefterov%
>>>>>> 40gmail.com><plefterov%
>>>>>> >> 40gmail.com>
>>>>>> >> >> >> >> <plefterov%40gmail.com><plefterov%
>>>>>> >> >> >> 40gmail.com>>
>>>>>> >> >> >> >> To: <emax@yahoogroups.com <emax%40yahoogroups.com>  
>>>>>> <emax%
>>>>>> 40yahoogroups.com> <emax%
>>>>>> >> 40yahoogroups.com> <emax%
>>>>>> >> >> 40yahoogroups.com> <emax%
>>>>>> >> >> >> 40yahoogroups.com>>
>>>>>> >> >> >> >> Sent: Saturday, February 06, 2010 1:35 AM
>>>>>> >> >> >> >> Subject: Re: [emax] Re: Emax Problem Diagnosis
>>>>>> >> >> >> >>
>>>>>> >> >> >> >> > Thanks for your help. Here are the readings:
>>>>>> >> >> >> >> >
>>>>>> >> >> >> >> > OR/GR = 12.48V
>>>>>> >> >> >> >> > YE/GR = 5.0V
>>>>>> >> >> >> >> > PU/GR = 12.18 (if i measure with red probe on green  
>>>>>> wire
>>>>>> >> >> >> >> > and
>>>>>> >> >> >> >> > black
>>>>>> >> >> >> >> > probe
>>>>>> >> >> >> >> > on
>>>>>> >> >> >> >> > the purple) or -12.18V (if I measure with the red  
>>>>>> probe
>>>>>> on
>>>>>> the
>>>>>> >> >> >> >> > purple
>>>>>> >> >> >> >> > and
>>>>>> >> >> >> >> > black probe on the green)
>>>>>> >> >> >> >> >
>>>>>> >> >> >> >> > The floppy drive works perfectly...it loads the OS and
>>>>>> and
>>>>>> >> >> >> >> > samples/presets.
>>>>>> >> >> >> >> >
>>>>>> >> >> >> >> > I appreciate your time.
>>>>>> >> >> >> >> >
>>>>>> >> >> >> >> > Preslav
>>>>>> >> >> >> >> >
>>>>>> >> >> >> >> > On Fri, Feb 5, 2010 at 7:17 PM, jammie
>>>>>> >> >> >> >> >
>>>>>> <jammie.emma@...<jammie.emma%40blueyonder.co.uk><jammie.emma%
>>>>>> 40blueyonder.co.uk>
>>>>>> >> >> >> >> > <jammie.emma%40blueyonder.co.uk><jammie.emma%
>>>>>> >> >> 40blueyonder.co.uk>
>>>>>> >> >> >> <jammie.emma%40blueyonder.co.uk>>
>>>>>> >> >> >>
>>>>>> >> >> >> >>
>>>>>> >> >> >> >> > wrote:
>>>>>> >> >> >> >> >
>>>>>> >> >> >> >> >>
>>>>>> >> >> >> >> >>
>>>>>> >> >> >> >> >>
>>>>>> >> >> >> >> >> test each wire conection
>>>>>> >> >> >> >> >>
>>>>>> >> >> >> >> >> orange and green wires red probe on the orange black
>>>>>> >> >> >> >> >> probe
>>>>>> on
>>>>>> >> >> >> >> >> the
>>>>>> >> >> >> >> >> green
>>>>>> >> >> >> >> >> for
>>>>>> >> >> >> >> >> +12v
>>>>>> >> >> >> >> >>
>>>>>> >> >> >> >> >> yellow and green wires red probe for yellow wire  
>>>>>> black
>>>>>> probe
>>>>>> >> >> >> >> >> on
>>>>>> >> >> the
>>>>>> >> >> >> >> green
>>>>>> >> >> >> >> >> wire for +5v
>>>>>> >> >> >> >> >>
>>>>>> >> >> >> >> >> purple and green wires red probe on the green wire
>>>>>> black
>>>>>> >> >> >> >> >> probe
>>>>>> >> >> >> >> >> on
>>>>>> >> >> >> >> >> the
>>>>>> >> >> >> >> >> purple wire for -12v
>>>>>> >> >> >> >> >>
>>>>>> >> >> >> >> >> test this for me and give me your readings
>>>>>> >> >> >> >> >>
>>>>>> >> >> >> >> >> does the floppy drive work as this is the 5v line
>>>>>> >> >> >> >> >>
>>>>>> >> >> >> >> >> the 5 v on the mother boards for other circuits gets
>>>>>> its
>>>>>> >> >> >> >> >> 5v
>>>>>> >> from
>>>>>> >> >> >> power
>>>>>> >> >> >> >> >> regulators of the +12v supply
>>>>>> >> >> >> >> >>
>>>>>> >> >> >> >> >> ----- Original Message -----
>>>>>> >> >> >> >> >> From: preslavl
>>>>>> >> >> >> >> >> To: emax@yahoogroups.com <emax%40yahoogroups.com>
>>>>>> <emax%
>>>>>> 40yahoogroups.com> <emax%
>>>>>> >> 40yahoogroups.com> <emax%
>>>>>> >> >> 40yahoogroups.com> <emax%
>>>>>> >> >> >> 40yahoogroups.com> <emax%
>>>>>> >> >> >> >> 40yahoogroups.com>
>>>>>> >> >> >> >> >> Sent: Friday, February 05, 2010 9:37 PM
>>>>>> >> >> >> >> >> Subject: [emax] Re: Emax Problem Diagnosis
>>>>>> >> >> >> >> >>
>>>>>> >> >> >> >> >> So I tried testing the voltages at the connector that
>>>>>> >> >> >> >> >> goes
>>>>>> >> >> >> >> >> between
>>>>>> >> >> >> the
>>>>>> >> >> >> >> PS
>>>>>> >> >> >> >> >> board and the CPU Board. I tested on the PS side. If  
>>>>>> I
>>>>>> follow
>>>>>> >> >> >> >> >> the
>>>>>> >> >> >> >> >> color
>>>>>> >> >> >> >> >> coding I read in a message on here somewhere: Yellow
>>>>>> >> >> >> >> >> (+5V),
>>>>>> >> >> >> >> >> Orange
>>>>>> >> >> >> >> >> (+12V),
>>>>>> >> >> >> >> >> Purple (-12V), and Green (0V/Ground).
>>>>>> >> >> >> >> >>
>>>>>> >> >> >> >> >> I get nowhere near those voltages...now I might be
>>>>>> doing
>>>>>> this
>>>>>> >> >> >> >> >> completely
>>>>>> >> >> >> >> >> wrong, but I get +12V at the Green wire, and 0v at  
>>>>>> the
>>>>>> Yellow
>>>>>> >> >> >> >> >> (where
>>>>>> >> >> >> I
>>>>>> >> >> >> >> >> should be getting +5V). I also get +17V at the Orange
>>>>>> wire...
>>>>>> >> >> >> >> >>
>>>>>> >> >> >> >> >> Again, I'm not sure if I'm testing at the correct
>>>>>> points.
>>>>>> By
>>>>>> >> the
>>>>>> >> >> >> >> >> way
>>>>>> >> >> >> >> >> I'm
>>>>>> >> >> >> >> >> still getting sound out of the Emax so it has not
>>>>>> >> >> >> >> >> exploded
>>>>>> in
>>>>>> >> my
>>>>>> >> >> >> hands
>>>>>> >> >> >> >> as
>>>>>> >> >> >> >> >> of
>>>>>> >> >> >> >> >> yet.
>>>>>> >> >> >> >> >>
>>>>>> >> >> >> >> >> --- In emax@yahoogroups.com
>>>>>> >> >> >> >> >> <emax%40yahoogroups.com><emax%
>>>>>> 40yahoogroups.com> <emax%
>>>>>> >> 40yahoogroups.com> <emax%
>>>>>> >> >> 40yahoogroups.com> <emax%
>>>>>> >> >> >> 40yahoogroups.com> <emax%
>>>>>> >> >> >>
>>>>>> >> >> >> >> 40yahoogroups.com>, "jammie"
>>>>>> >> >> >> >>
>>>>>> >> >> >> >> >> <jammie.emma@...> wrote:
>>>>>> >> >> >> >> >> >
>>>>>> >> >> >> >> >> > right the cv (control voltages for the filter  
>>>>>> cutoff
>>>>>> >> >> >> >> >> > vca
>>>>>> >> >> >> >> >> > and
>>>>>> >> >> >> >> >> > resonance
>>>>>> >> >> >> >> >> are sent by the cv circuit ranging from 0v-5v
>>>>>> >> >> >> >> >> >
>>>>>> >> >> >> >> >> > which is sent by the cpu for control off the filter
>>>>>> >> >> >> >> >> > depending
>>>>>> >>
>>>>>> >> >> >> >> >> > on
>>>>>> >> >> >> >> >> > envelope
>>>>>> >> >> >> >> >> settings or external controllers
>>>>>> >> >> >> >> >> >
>>>>>> >> >> >> >> >> > now the ssm2300 are sample and hold circuits they
>>>>>> send
>>>>>> out
>>>>>> >> the
>>>>>> >> >> >> >> >> > digital
>>>>>> >> >> >> >> >> info into analog voltages which are sampled then
>>>>>> transmitted
>>>>>> >> >> >> >> >> as
>>>>>> >>
>>>>>> >> >> >> >> >> a
>>>>>> >> >> >> >> voltage
>>>>>> >> >> >> >> >> in
>>>>>> >> >> >> >> >> the range of 0-5v 0v = 0 resonance 5v = full  
>>>>>> resonance
>>>>>> >> >> >> >> >> >
>>>>>> >> >> >> >> >> > or cut off or vca volume
>>>>>> >> >> >> >> >> >
>>>>>> >> >> >> >> >> > thats what the first 3 ssm2300 deal with
>>>>>> >> >> >> >> >> >
>>>>>> >> >> >> >> >> > the 4th ssm2300 deals with the digital signal  
>>>>>> comming
>>>>>> from
>>>>>> >> the
>>>>>> >> >> >> >> >> > dacs
>>>>>> >> >> >> >> >> > this
>>>>>> >> >> >> >> >> is the samples that are transmitted from the ram to  
>>>>>> the
>>>>>> dacs
>>>>>> >> and
>>>>>> >> >> to
>>>>>> >> >> >> >> >> the
>>>>>> >> >> >> >> >> samplre and hold circuits which send out voltages  
>>>>>> 0-5v
>>>>>> which
>>>>>> >> >> >> corispond
>>>>>> >> >> >> >> to
>>>>>> >> >> >> >> >> the digital sound into analog format
>>>>>> >> >> >> >> >> >
>>>>>> >> >> >> >> >> > now if you are getting sound out then the ssm2300  
>>>>>> for
>>>>>> that
>>>>>> >> >> >> >> >> > part
>>>>>> >> >> >> >> >> > of
>>>>>> >> >> >> >> >> > the
>>>>>> >> >> >> >> >> circuit is working it seems to be the cv circuit that
>>>>>> you
>>>>>> are
>>>>>> >> >> >> >> >> having
>>>>>> >> >> >> a
>>>>>> >> >> >> >> >> problem with not being sent into the ssm2300 to be  
>>>>>> made
>>>>>> into
>>>>>> >> the
>>>>>> >> >> >> >> >> analog
>>>>>> >> >> >> >> >> control voltages
>>>>>> >> >> >> >> >> >
>>>>>> >> >> >> >> >> > ----- Original Message -----
>>>>>> >> >> >> >> >> > From: preslavl
>>>>>> >> >> >> >> >> > To: emax@yahoogroups.com <emax%40yahoogroups.com>
>>>>>> >> >> >> >> >> > <emax%
>>>>>> 40yahoogroups.com> <emax%
>>>>>> >> 40yahoogroups.com> <emax%
>>>>>> >> >> 40yahoogroups.com> <emax%
>>>>>> >> >> >> 40yahoogroups.com> <emax%
>>>>>> >> >> >> >> 40yahoogroups.com>
>>>>>> >> >> >> >> >> > Sent: Friday, February 05, 2010 7:18 PM
>>>>>> >> >> >> >> >> > Subject: [emax] Re: Emax Problem Diagnosis
>>>>>> >> >> >> >> >> >
>>>>>> >> >> >> >> >> >
>>>>>> >> >> >> >> >> >
>>>>>> >> >> >> >> >> > Let me make sure I understand you correctly:
>>>>>> >> >> >> >> >> >
>>>>>> >> >> >> >> >> > What you describe is one test: checking that the
>>>>>> 2300s
>>>>>> are
>>>>>> >> >> >> >> >> > getting
>>>>>> >> >> >> >> >> > the
>>>>>> >> >> >> >> >> correct voltage from the 5v supply? And I should be
>>>>>> >> >> >> >> >> getting
>>>>>>
>>>>>> >> >> >> >> >> +/-
>>>>>> >> >> 12V
>>>>>> >> >> >> >> >> and
>>>>>> >> >> >> >> >> ground? Are there testpoints visible or is it pretty
>>>>>> obvious
>>>>>> >> >> >> >> >> where
>>>>>> >> >>
>>>>>> >> >> >> >> >> to
>>>>>> >> >> >> >> >> test
>>>>>> >> >> >> >> >> it?
>>>>>> >> >> >> >> >> >
>>>>>> >> >> >> >> >> > Thanks for the quick reply
>>>>>> >> >> >> >> >> >
>>>>>> >> >> >> >> >> > --- In emax@yahoogroups.com
>>>>>> >> >> >> >> >> > <emax%40yahoogroups.com><emax%
>>>>>> 40yahoogroups.com> <emax%
>>>>>> >> 40yahoogroups.com> <emax%
>>>>>> >> >> 40yahoogroups.com> <emax%
>>>>>> >> >> >> 40yahoogroups.com> <emax%
>>>>>> >> >> >>
>>>>>> >> >> >> >> 40yahoogroups.com>, "jammie"
>>>>>> >> >> >> >>
>>>>>> >> >> >> >> >> <jammie.emma@> wrote:
>>>>>> >> >> >> >> >> > >
>>>>>> >> >> >> >> >> > > check the 5 v supply as this is the control  
>>>>>> voltage
>>>>>> >> >> >> >> >> > > of
>>>>>> >> >> >> >> >> > > the
>>>>>> >> >> >> filters
>>>>>> >> >> >> >> >> > >
>>>>>> >> >> >> >> >> > > the cv control gets sent to 1 of the 2300 for fc  
>>>>>> 1
>>>>>> >> >> >> >> >> > > for
>>>>>> >> >> >> >> >> > > resonance
>>>>>> >> >> >> 1
>>>>>> >> >> >> >> is
>>>>>> >> >> >> >> >> for the vca and thhe other is for the dacs for the 8
>>>>>> note
>>>>>> >> >> polyphony
>>>>>> >> >> >> >> >> each
>>>>>> >> >> >> >> >> octal sample and hold circuits for each of the
>>>>>> functions
>>>>>> >> >> >> >> >> > >
>>>>>> >> >> >> >> >> > > check to see that you are getting the corect
>>>>>> voltage
>>>>>> for
>>>>>> >> >> >> operation
>>>>>> >> >> >> >> of
>>>>>> >> >> >> >> >> the 2300 or 4051 or smp08
>>>>>> >> >> >> >> >> > >
>>>>>> >> >> >> >> >> > > if i was to change them then i would upgrade them
>>>>>> to
>>>>>> the
>>>>>> >> >> >> >> >> > > newer
>>>>>> >> >> >> >> faster
>>>>>> >> >> >> >> >> slew rate the smp08 are the best and are from analog
>>>>>> devices
>>>>>> >> and
>>>>>> >> >> >> >> >> are
>>>>>> >> >> >> >> >> direct
>>>>>> >> >> >> >> >> replacements for the ssm2300 which are 4051  
>>>>>> equivelents
>>>>>> made
>>>>>> >> >> >> >> >> by
>>>>>> >> >> emu
>>>>>> >> >> >> >> >> > >
>>>>>> >> >> >> >> >> > > the smp08 they have a faster slew rate and have
>>>>>> >> >> >> >> >> > > faster
>>>>>> >> >> >> >> >> > > transient
>>>>>> >> >> >> >> >> response with less distortion
>>>>>> >> >> >> >> >> > >
>>>>>> >> >> >> >> >> > >
>>>>>> >> >> >> >> >> > > you should be getting 12vdc vdd and grnd
>>>>>> >> >> >> >> >> > >
>>>>>> >> >> >> >> >> > > ----- Original Message -----
>>>>>> >> >> >> >> >> > > From: preslavl
>>>>>> >> >> >> >> >> > > To: emax@yahoogroups.com
>>>>>> >> >> >> >> >> > > <emax%40yahoogroups.com><emax%
>>>>>> 40yahoogroups.com> <emax%
>>>>>> >> 40yahoogroups.com> <emax%
>>>>>> >> >> 40yahoogroups.com> <emax%
>>>>>> >> >> >> 40yahoogroups.com> <emax%
>>>>>> >> >> >> >> 40yahoogroups.com>
>>>>>> >> >> >> >> >> > > Sent: Friday, February 05, 2010 5:54 PM
>>>>>> >> >> >> >> >> > > Subject: [emax] Emax Problem Diagnosis
>>>>>> >> >> >> >> >> > >
>>>>>> >> >> >> >> >> > >
>>>>>> >> >> >> >> >> > >
>>>>>> >> >> >> >> >> > > Hello,
>>>>>> >> >> >> >> >> > >
>>>>>> >> >> >> >> >> > > I wanted to see if I can get some help diagnosing
>>>>>> the
>>>>>> >> >> >> >> >> > > problem(s)
>>>>>> >> >> >> >> >> > > of
>>>>>> >> >> >> >> >> > > an
>>>>>> >> >> >> >> >> Emax I i just purchased.
>>>>>> >> >> >> >> >> > >
>>>>>> >> >> >> >> >> > > Here are they symptoms:
>>>>>> >> >> >> >> >> > >
>>>>>> >> >> >> >> >> > > - No Frequency Cutoff - I calibrated the data
>>>>>> slider
>>>>>> and
>>>>>> >> >> >> >> >> > > it
>>>>>> >> >> >> >> registers
>>>>>> >> >> >> >> >> the frequency cutoff (FC) going up in numbers but you
>>>>>> cannot
>>>>>> >> >> >> >> >> hear
>>>>>> >> >> >> >> >> any
>>>>>> >> >> >> >> >> change.
>>>>>> >> >> >> >> >> > >
>>>>>> >> >> >> >> >> > > - No Attack in the ADSR or the filter ADSR -  
>>>>>> cannot
>>>>>> hear
>>>>>> >> >> >> >> >> > > an
>>>>>> >> >> >> >> >> > > increase
>>>>>> >> >> >> >>
>>>>>> >> >> >> >> >> > > in
>>>>>> >> >> >> >> >> attack even when the values increase.
>>>>>> >> >> >> >> >> > >
>>>>>> >> >> >> >> >> > > - No Volume - volume slider was calibrated and it
>>>>>> >> >> >> >> >> > > seems
>>>>>>
>>>>>> >> >> >> >> >> > > to
>>>>>> >> >> work
>>>>>> >> >> >> >> >> > > but
>>>>>> >> >> >> >> >> moving it up or down does not make a
>>>>>> difference...volume
>>>>>> >> >> >> >> >> seems
>>>>>> >> >> >> >> >> to
>>>>>> >> >> >> >> >> be
>>>>>> >> >> >> >> >> at
>>>>>> >> >> >> >> >> 100%.
>>>>>> >> >> >> >> >> > >
>>>>>> >> >> >> >> >> > > These are pretty much all the symptoms I've  
>>>>>> notices
>>>>>> >> >> >> >> >> > > so
>>>>>> >> >> >> >> >> > > far.
>>>>>> >> >> >> >> >> > >
>>>>>> >> >> >> >> >> > > Things I've covered so far:
>>>>>> >> >> >> >> >> > >
>>>>>> >> >> >> >> >> > > - I replaced the 4 SSM 2300 that were in the
>>>>>> >> >> >> >> >> > > sampler -
>>>>>> it
>>>>>> >> >> >> >> >> > > did
>>>>>> >> >> >> >> >> > > not
>>>>>> >> >> >> >> >> > > seem
>>>>>> >> >> >> >> >> to make ANY difference. I replaced the original chips
>>>>>> >> >> >> >> >> with
>>>>>> >> >> >> >> >> ones
>>>>>> >> >> >> >> >> marked:
>>>>>> >> >> >> >> >> "SSM2300 8652". I purchased these on eBAY. Could this
>>>>>> be
>>>>>> the
>>>>>> >> >> issue?
>>>>>> >> >> >> >> >> > >
>>>>>> >> >> >> >> >> > > - I went through the recalibration procedure - no
>>>>>> change.
>>>>>> >> >> >> >> >> > >
>>>>>> >> >> >> >> >> > > - I performed the diagnostic tests inside the
>>>>>> Master
>>>>>> menu
>>>>>> >> >> >> >> >> > > (8,
>>>>>> >> >> >> >> >> > > 8,
>>>>>> >> >> >> >> >> > > YES).
>>>>>> >> >> >> >> >> ERAM and Bank RAM checked out OK and all other tests
>>>>>> >> >> >> >> >> seemed
>>>>>>
>>>>>> >> >> >> >> >> to
>>>>>> >> >> have
>>>>>> >> >> >> >> >> passed.
>>>>>> >> >> >> >> >> > >
>>>>>> >> >> >> >> >> > > Any ideas anyone?
>>>>>> >> >> >> >> >> > >
>>>>>> >> >> >> >> >> > > Thank you,
>>>>>> >> >> >> >> >> > >
>>>>>> >> >> >> >> >> > > Preslav
>>>>>> >> >> >> >> >> > >
>>>>>> >> >> >> >> >> > >
>>>>>> >> >> >> >> >> > >
>>>>>> >> >> >> >> >> > >
>>>>>> >> >> >> >> >> > >
>>>>>> >> >> >> >> >> > >
>>>>>> >> >> >> >> >> > >
>>>>>> ----------------------------------------------------------
>>>>>> >> >> >> >> >> > >
>>>>>> >> >> >> >> >> > >
>>>>>> >> >> >> >> >> > >
>>>>>> >> >> >> >> >> > > No virus found in this incoming message.
>>>>>> >> >> >> >> >> > > Checked by AVG - www.avg.com
>>>>>> >> >> >> >> >> > > Version: 8.5.435 / Virus Database: 271.1.1/2669 -
>>>>>> Release
>>>>>> >> >> Date:
>>>>>> >> >> >> >> >> 02/05/10 07:35:00
>>>>>> >> >> >> >> >> > >
>>>>>> >> >> >> >> >> > >
>>>>>> >> >> >> >> >> > > [Non-text portions of this message have been
>>>>>> removed]
>>>>>> >> >> >> >> >> > >
>>>>>> >> >> >> >> >> >
>>>>>> >> >> >> >> >> >
>>>>>> >> >> >> >> >> >
>>>>>> >> >> >> >> >> >
>>>>>> >> >> >> >> >> >
>>>>>> >> >> >> >> >> >
>>>>>> >> >> >> >> >> >
>>>>>> ----------------------------------------------------------
>>>>>> >> >> >> >> >> >
>>>>>> >> >> >> >> >> >
>>>>>> >> >> >> >> >> >
>>>>>> >> >> >> >> >> > No virus found in this incoming message.
>>>>>> >> >> >> >> >> > Checked by AVG - www.avg.com
>>>>>> >> >> >> >> >> > Version: 8.5.435 / Virus Database: 271.1.1/2669 -
>>>>>> >> >> >> >> >> > Release
>>>>>> >> >> >> >> >> > Date:
>>>>>> >> >> >> >> >> > 02/05/10
>>>>>> >> >> >> >> >> 07:35:00
>>>>>> >> >> >> >> >> >
>>>>>> >> >> >> >> >> >
>>>>>> >> >> >> >> >> > [Non-text portions of this message have been  
>>>>>> removed]
>>>>>> >> >> >> >> >> >
>>>>>> >> >> >> >> >>
>>>>>> >> >> >> >> >>
>>>>>> ----------------------------------------------------------
>>>>>> >> >> >> >> >>
>>>>>> >> >> >> >> >> No virus found in this incoming message.
>>>>>> >> >> >> >> >> Checked by AVG - www.avg.com
>>>>>> >> >> >> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2669 -
>>>>>> Release
>>>>>> >> >> >> >> >> Date:
>>>>>> >> >> >> >> >> 02/05/10
>>>>>> >> >> >> >> >> 07:35:00
>>>>>> >> >> >> >> >>
>>>>>> >> >> >> >> >> [Non-text portions of this message have been removed]
>>>>>> >> >> >> >> >>
>>>>>> >> >> >> >> >>
>>>>>> >> >> >> >> >>
>>>>>> >> >> >> >> >
>>>>>> >> >> >> >> >
>>>>>> >> >> >> >> > [Non-text portions of this message have been removed]
>>>>>> >> >> >> >> >
>>>>>> >> >> >> >> >
>>>>>> >> >> >> >> >
>>>>>> >> >> >> >> > ------------------------------------
>>>>>> >> >> >> >> >
>>>>>> >> >> >> >> > Emax and Emax II User's Group Website
>>>>>> >> >> >> >> >
>>>>>> >> >> >> >> > http://www.silveriafamily.comYahoo! Groups Links
>>>>>> >> >> >> >>
>>>>>> >> >> >> >> >
>>>>>> >> >> >> >> >
>>>>>> >> >> >> >> >
>>>>>> >> >> >> >>
>>>>>> >> >> >> >>  
>>>>>> ----------------------------------------------------------
>>>>>> >> >> >> >>
>>>>>> >> >> >> >> No virus found in this incoming message.
>>>>>> >> >> >> >> Checked by AVG - www.avg.com
>>>>>> >> >> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2669 -  
>>>>>> Release
>>>>>> Date:
>>>>>> >> >> >> >> 02/05/10
>>>>>> >> >> >> >> 07:35:00
>>>>>> >> >> >> >>
>>>>>> >> >> >> >>
>>>>>> >> >> >> >>
>>>>>> >> >> >> >
>>>>>> >> >> >> >
>>>>>> >> >> >> > [Non-text portions of this message have been removed]
>>>>>> >> >> >> >
>>>>>> >> >> >> >
>>>>>> >> >> >> >
>>>>>> >> >> >> > ------------------------------------
>>>>>> >> >> >> >
>>>>>> >> >> >> > Emax and Emax II User's Group Website
>>>>>> >> >> >> >
>>>>>> >> >> >> > http://www.silveriafamily.comYahoo! Groups Links
>>>>>> >> >> >> >
>>>>>> >> >> >> >
>>>>>> >> >> >> >
>>>>>> >> >> >>
>>>>>> >> >> >> ----------------------------------------------------------
>>>>>> >> >> >>
>>>>>> >> >> >> No virus found in this incoming message.
>>>>>> >> >> >> Checked by AVG - www.avg.com
>>>>>> >> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2671 - Release
>>>>>> Date:
>>>>>> >> >> >> 02/06/10
>>>>>> >> >> >> 07:35:00
>>>>>> >> >> >>
>>>>>> >> >> >>
>>>>>> >> >> >>
>>>>>> >> >> >
>>>>>> >> >> >
>>>>>> >> >> > [Non-text portions of this message have been removed]
>>>>>> >> >> >
>>>>>> >> >> >
>>>>>> >> >> >
>>>>>> >> >> > ------------------------------------
>>>>>> >> >> >
>>>>>> >> >> > Emax and Emax II User's Group Website
>>>>>> >> >> >
>>>>>> >> >> > http://www.silveriafamily.comYahoo! Groups Links
>>>>>> >> >> >
>>>>>> >> >> >
>>>>>> >> >> >
>>>>>> >> >>
>>>>>> >> >> ----------------------------------------------------------
>>>>>> >> >>
>>>>>> >> >> No virus found in this incoming message.
>>>>>> >> >> Checked by AVG - www.avg.com
>>>>>> >> >> Version: 8.5.435 / Virus Database: 271.1.1/2675 - Release  
>>>>>> Date:
>>>>>> >> >> 02/08/10
>>>>>> >> >> 07:35:00
>>>>>> >> >>
>>>>>> >> >>
>>>>>> >> >>
>>>>>> >> >
>>>>>> >> >
>>>>>> >> > [Non-text portions of this message have been removed]
>>>>>> >> >
>>>>>> >> >
>>>>>> >> >
>>>>>> >> > ------------------------------------
>>>>>> >> >
>>>>>> >> > Emax and Emax II User's Group Website
>>>>>> >> >
>>>>>> >> > http://www.silveriafamily.comYahoo! Groups Links
>>>>>> >> >
>>>>>> >> >
>>>>>> >> >
>>>>>> >>
>>>>>> >> ----------------------------------------------------------
>>>>>> >>
>>>>>> >> No virus found in this incoming message.
>>>>>> >> Checked by AVG - www.avg.com
>>>>>> >> Version: 8.5.435 / Virus Database: 271.1.1/2675 - Release Date:
>>>>>> 02/08/10
>>>>>> >> 07:35:00
>>>>>> >>
>>>>>> >>
>>>>>> >>
>>>>>> >
>>>>>> >
>>>>>> > [Non-text portions of this message have been removed]
>>>>>> >
>>>>>> >
>>>>>> >
>>>>>> > ------------------------------------
>>>>>> >
>>>>>> > Emax and Emax II User's Group Website
>>>>>> >
>>>>>> > http://www.silveriafamily.comYahoo! Groups Links
>>>>>> >
>>>>>> >
>>>>>> >
>>>>>>
>>>>>> ----------------------------------------------------------
>>>>>>
>>>>>> No virus found in this incoming message.
>>>>>> Checked by AVG - www.avg.com
>>>>>> Version: 8.5.435 / Virus Database: 271.1.1/2676 - Release Date:
>>>>>> 02/08/10
>>>>>> 19:35:00
>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>> [Non-text portions of this message have been removed]
>>>>
>>>>
>>>>
>>>> ------------------------------------
>>>>
>>>> Emax and Emax II User's Group Website
>>>>
>>>> http://www.silveriafamily.comYahoo! Groups Links
>>>>
>>>>
>>>>
>>>
>>>
>>> --------------------------------------------------------------------------------
>>>
>>>
>>>
>>> No virus found in this incoming message.
>>> Checked by AVG - www.avg.com
>>> Version: 8.5.435 / Virus Database: 271.1.1/2706 - Release Date:  
>>> 02/23/10
>>> 19:34:00
>>>
>>>
>>
>>
>>
>> ------------------------------------
>>
>> Emax and Emax II User's Group Website
>>
>> http://www.silveriafamily.comYahoo! Groups Links
>>
>>
>>
>
>
> --------------------------------------------------------------------------------
>
>
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 8.5.435 / Virus Database: 271.1.1/2706 - Release Date: 02/23/10
> 19:34:00
>
>
>
>
> ------------------------------------
>
> Emax and Emax II User's Group Website
>
> http://www.silveriafamily.comYahoo! Groups Links
>
>
>
>
> .

Move to quarantaine

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