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]
Message
Re: [emax] Re: Emax Problem Diagnosis
2010-02-24 by Preslav Lefterov