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EMAX II Display Problems ....

EMAX II Display Problems ....

2012-01-28 by freddy1771994

Hi
I'm Freddy,17, from western Germany and a proud owner of an EMAX II
(4mb, will upgrade it tommorow to 8 mb).

Today I wanted to change my el-foil which was no big deal. Now it lits
nicely bright again.

I cannot explain why, BUT now the most letter of the field are not shown
anymore (http://www.flickr.com/photos/75453658@N08/6776680311/in/photostream/lightbox/). 
If I press my fingernail between the metal of the display and the glass, suddenly mor, BUT not all letters appear (http://www.flickr.com/photos/75453658@N08/6776680645/in/photostream/lightbox/).

I disassembled the EMAX now several time to get access to the display but none of my attemps were succesful. I decided to interrupt that, due to the fragility of electronic parts.

PLEASE; What do think is the problem and what should I do solve it?

Thank you very much in advance!

Re: [emax] EMAX II Display Problems ....

2012-01-28 by Johnny Tomasello

If I understand your problem, I had a similar one when I replaced the backlight in my Emax I.  I noticed that not all the letters were displaying correctly, with missing segments.  It seemed to me that the display needs to be pushed very tightly against its support for the contacts to work properly.  So I put a small sliver of electrical tape, folded, on each side to help the support push more snugly against the display.  And that fixed he problem.  At first I was hesitant to add something like this, thinking it should work fine the way it was.  But while testing the display out of its housing, I did find it needed to be fastened tightly to work correctly.  And I was very careful not to add too much pressure.  Just enough...

If anyone else has an opinion, I'd be interested to hear an alternate solution.

Good Luck,

John.

Sent from my iPhone

On Jan 28, 2012, at 11:48 AM, "freddy1771994" <freddy1771994@...> wrote:

> Hi
> I'm Freddy,17, from western Germany and a proud owner of an EMAX II
> (4mb, will upgrade it tommorow to 8 mb).
> 
> Today I wanted to change my el-foil which was no big deal. Now it lits
> nicely bright again.
> 
> I cannot explain why, BUT now the most letter of the field are not shown
> anymore (http://www.flickr.com/photos/75453658@N08/6776680311/in/photostream/lightbox/). 
> If I press my fingernail between the metal of the display and the glass, suddenly mor, BUT not all letters appear (http://www.flickr.com/photos/75453658@N08/6776680645/in/photostream/lightbox/).
> 
> I disassembled the EMAX now several time to get access to the display but none of my attemps were succesful. I decided to interrupt that, due to the fragility of electronic parts.
> 
> PLEASE; What do think is the problem and what should I do solve it?
> 
> Thank you very much in advance!
> 
> 


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

Re: [emax] EMAX II Display Problems ....

2012-01-28 by Matt

I am having a similar issue on a Proteus 2000. I was going to replace the
display but I'll try this first.
On Jan 28, 2012 9:39 AM, "Johnny Tomasello" <johnny@...> wrote:

> **
>
>
> If I understand your problem, I had a similar one when I replaced the
> backlight in my Emax I. I noticed that not all the letters were displaying
> correctly, with missing segments. It seemed to me that the display needs to
> be pushed very tightly against its support for the contacts to work
> properly. So I put a small sliver of electrical tape, folded, on each side
> to help the support push more snugly against the display. And that fixed he
> problem. At first I was hesitant to add something like this, thinking it
> should work fine the way it was. But while testing the display out of its
> housing, I did find it needed to be fastened tightly to work correctly. And
> I was very careful not to add too much pressure. Just enough...
>
> If anyone else has an opinion, I'd be interested to hear an alternate
> solution.
>
> Good Luck,
>
> John.
>
> Sent from my iPhone
>
> On Jan 28, 2012, at 11:48 AM, "freddy1771994" <freddy1771994@...>
> wrote:
>
> > Hi
> > I'm Freddy,17, from western Germany and a proud owner of an EMAX II
> > (4mb, will upgrade it tommorow to 8 mb).
> >
> > Today I wanted to change my el-foil which was no big deal. Now it lits
> > nicely bright again.
> >
> > I cannot explain why, BUT now the most letter of the field are not shown
> > anymore (
> http://www.flickr.com/photos/75453658@N08/6776680311/in/photostream/lightbox/).
>
> > If I press my fingernail between the metal of the display and the glass,
> suddenly mor, BUT not all letters appear (
> http://www.flickr.com/photos/75453658@N08/6776680645/in/photostream/lightbox/
> ).
> >
> > I disassembled the EMAX now several time to get access to the display
> but none of my attemps were succesful. I decided to interrupt that, due to
> the fragility of electronic parts.
> >
> > PLEASE; What do think is the problem and what should I do solve it?
> >
> > Thank you very much in advance!
> >
> >
>
> [Non-text portions of this message have been removed]
>
>  
>


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

Re: EMAX II Display Problems ....

2012-01-29 by Everett

I have seen this problem in Akai LCD displays before and the fix was to bend the metal tabs that held the board to the glass over more.  I haven't had my display out on the EMAX yet though but I assume it has the same rubber style connection that needs solid contact with the LCD.

--- In emax@yahoogroups.com, Matt <somatt@...> wrote:
Show quoted textHide quoted text
>
> I am having a similar issue on a Proteus 2000. I was going to replace the
> display but I'll try this first.
> On Jan 28, 2012 9:39 AM, "Johnny Tomasello" <johnny@...> wrote:
> 
> > **
> >
> >
> > If I understand your problem, I had a similar one when I replaced the
> > backlight in my Emax I. I noticed that not all the letters were displaying
> > correctly, with missing segments. It seemed to me that the display needs to
> > be pushed very tightly against its support for the contacts to work
> > properly. So I put a small sliver of electrical tape, folded, on each side
> > to help the support push more snugly against the display. And that fixed he
> > problem. At first I was hesitant to add something like this, thinking it
> > should work fine the way it was. But while testing the display out of its
> > housing, I did find it needed to be fastened tightly to work correctly. And
> > I was very careful not to add too much pressure. Just enough...
> >
> > If anyone else has an opinion, I'd be interested to hear an alternate
> > solution.
> >
> > Good Luck,
> >
> > John.
> >
> > Sent from my iPhone
> >
> > On Jan 28, 2012, at 11:48 AM, "freddy1771994" <freddy1771994@...>
> > wrote:
> >
> > > Hi
> > > I'm Freddy,17, from western Germany and a proud owner of an EMAX II
> > > (4mb, will upgrade it tommorow to 8 mb).
> > >
> > > Today I wanted to change my el-foil which was no big deal. Now it lits
> > > nicely bright again.
> > >
> > > I cannot explain why, BUT now the most letter of the field are not shown
> > > anymore (
> > http://www.flickr.com/photos/75453658@N08/6776680311/in/photostream/lightbox/).
> >
> > > If I press my fingernail between the metal of the display and the glass,
> > suddenly mor, BUT not all letters appear (
> > http://www.flickr.com/photos/75453658@N08/6776680645/in/photostream/lightbox/
> > ).
> > >
> > > I disassembled the EMAX now several time to get access to the display
> > but none of my attemps were succesful. I decided to interrupt that, due to
> > the fragility of electronic parts.
> > >
> > > PLEASE; What do think is the problem and what should I do solve it?
> > >
> > > Thank you very much in advance!
> > >
> > >
> >
> > [Non-text portions of this message have been removed]
> >
> >  
> >
> 
> 
> [Non-text portions of this message have been removed]
>

Re: EMAX II Display Problems ....

2012-01-29 by freddy1771994

Hello again.

Firstly, the problem still exists. If there is no one among the emax users who can help me, I guess I have to think about an LCD replacement like those which were already discussed here in the forum.

But to be honest I had my problems to understand everything because the persons who described it used an expert language. Maybe there is someone who could explain the changes with a 'simpler' language.
Perhaps there are photos ! :)

Please, it would be fantastic if you'd help me. In return I will show you (for those who still don't know) how to upgrade the emax memory... ;)

Thank you very much in advance!

Re: [emax] Re: EMAX II Display Problems ....

2012-01-29 by Johnny Tomasello

You need to apply a little more pressure to the screen to get the contacts to touch properly.  The replacement backlight strip is probably thinner than the original (mine was) so there is not sufficient pressure making the contacts.

Does that help?  I'm sorry if my earlier explanation was too long.

Good luck.

J.

Sent from my iPhone

On Jan 29, 2012, at 11:57 AM, "freddy1771994" <freddy1771994@...> wrote:

> Hello again.
> 
> Firstly, the problem still exists. If there is no one among the emax users who can help me, I guess I have to think about an LCD replacement like those which were already discussed here in the forum.
> 
> But to be honest I had my problems to understand everything because the persons who described it used an expert language. Maybe there is someone who could explain the changes with a 'simpler' language.
> Perhaps there are photos ! :)
> 
> Please, it would be fantastic if you'd help me. In return I will show you (for those who still don't know) how to upgrade the emax memory... ;)
> 
> Thank you very much in advance!
> 
> 


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

Re: [emax] Re: EMAX II Display Problems ....

2012-01-29 by Ted Summers

I think your confusion may come from the fact there are several different types of displays (EL (original item) and LCD)  and circuit layouts for displays.
Others can clarify / correct / expand on this if they want....

There is a direct drop in replacement- EL and the pins line up and everything.
You simply solder on new pins and connect a pot for the viewing angle on pin 3 (typically).
my Emax 1 didn't need the pot, my Emax 2 keyboard did....

Another choice is LCD and same pin layout, but due to backlight being LED, you must do different wiring for 5V instead of the 300V AC that the EL (original) uses.

Then there are other options where the pins don't line up and you remove the connector headers because the display is too thick.
Soldering of pins which are in a different location is required.


When I got mine I got a direct replacement so no real complication was involved.

But the above is why there is no simple single explanation.
There are many variables here.

Thx,
Ted




On Jan 29, 2012, at 8:57 AM, freddy1771994 wrote:

Hello again.

Firstly, the problem still exists. If there is no one among the emax users who can help me, I guess I have to think about an LCD replacement like those which were already discussed here in the forum.

But to be honest I had my problems to understand everything because the persons who described it used an expert language. Maybe there is someone who could explain the changes with a 'simpler' language.
Perhaps there are photos ! :)

Please, it would be fantastic if you'd help me. In return I will show you (for those who still don't know) how to upgrade the emax memory... ;)

Thank you very much in advance!





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

Re: EMAX II Display Problems ....

2012-01-29 by freddy1771994

I'm very sorry that I have to say that Mr. Summers, because you did obviously a lot of effort:

Just 5 minutes ago I fixed this problem. 
Violence: Just press the metal support extremly stong on the glass and it works.

Please read my other thread (Yes I'm working a lot on the emax at the moment)

Re: [emax] Re: EMAX II Display Problems ....

2012-01-29 by jammie

use an oled they are direct replacements no need for pin 3 as there is no 
angle and no need for back light just unsolder old display

and solder new one in place you will need to add a nut and bolt due to there 
only being one solder side connection

this is the easyist oneto do as the vfd need hard wiring and are thicker

dont go led backlight route as these are 9 mm bigger than original and there 
is a lot of fiddling around
----- Original Message -----
Show quoted textHide quoted text
From: "Ted Summers" <djtbs1@...>
To: <emax@yahoogroups.com>
Sent: Sunday, January 29, 2012 7:54 PM
Subject: Re: [emax] Re: EMAX II Display Problems ....


>I think your confusion may come from the fact there are several different 
>types of displays (EL (original item) and LCD)  and circuit layouts for 
>displays.
> Others can clarify / correct / expand on this if they want....
>
> There is a direct drop in replacement- EL and the pins line up and 
> everything.
> You simply solder on new pins and connect a pot for the viewing angle on 
> pin 3 (typically).
> my Emax 1 didn't need the pot, my Emax 2 keyboard did....
>
> Another choice is LCD and same pin layout, but due to backlight being LED, 
> you must do different wiring for 5V instead of the 300V AC that the EL 
> (original) uses.
>
> Then there are other options where the pins don't line up and you remove 
> the connector headers because the display is too thick.
> Soldering of pins which are in a different location is required.
>
>
> When I got mine I got a direct replacement so no real complication was 
> involved.
>
> But the above is why there is no simple single explanation.
> There are many variables here.
>
> Thx,
> Ted
>
>
>
>
> On Jan 29, 2012, at 8:57 AM, freddy1771994 wrote:
>
> Hello again.
>
> Firstly, the problem still exists. If there is no one among the emax users 
> who can help me, I guess I have to think about an LCD replacement like 
> those which were already discussed here in the forum.
>
> But to be honest I had my problems to understand everything because the 
> persons who described it used an expert language. Maybe there is someone 
> who could explain the changes with a 'simpler' language.
> Perhaps there are photos ! :)
>
> Please, it would be fantastic if you'd help me. In return I will show you 
> (for those who still don't know) how to upgrade the emax memory... ;)
>
> Thank you very much in advance!
>
>
>
>
>
> [Non-text portions of this message have been removed]
>
>
>
> ------------------------------------
>
> Emax and Emax II User's Group Website
>
> http://www.silveriafamily.comYahoo! Groups Links
>
>
>

Re: [emax] EMAX II Display Problems ....

2012-01-30 by Louis van Dompselaar

Any sources?  (other than Rapid, as they are prohibitively expensive outside the UK, almost
tripling the cost of the diplay in shipping)

I was planning to use a LED backlight one (modern ones are only about 1mm thicker,
not 9mm).  But it has the connector on the tall side so it is more work.


Op 29 jan. 2012, om 21:55 heeft jammie het volgende geschreven:

> use an oled they are direct replacements no need for pin 3 as there is no 
> angle and no need for back light just unsolder old display
> 
> and solder new one in place you will need to add a nut and bolt due to there 
> only being one solder side connection
> 
> this is the easyist oneto do as the vfd need hard wiring and are thicker
> 
> dont go led backlight route as these are 9 mm bigger than original and there 
> is a lot of fiddling around.
> 
>  
> 



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

Re: [emax] EMAX II Display Problems ....

2012-01-30 by jammie

led are much thicker beleive me i know as i have replaced over 20 emax displays

the oled are same thickness but you should find a distibuter in your own country from the manufacturer as that whole saler is distributer for uk

vfd are good and they also have a different connection and so are not drop in they are also a little thicker

the rack you have to cut a hole in the pcb

the keyboard you cant do this as the traces are on the lcd board right behind the lcd screen and you have to trim the back of the emax plastic cover by a couple of mm

once done they sit nice
Show quoted textHide quoted text
  ----- Original Message ----- 
  From: Louis van Dompselaar 
  To: emax@yahoogroups.com 
  Sent: Monday, January 30, 2012 8:39 AM
  Subject: Re: [emax] EMAX II Display Problems ....


    
  Any sources? (other than Rapid, as they are prohibitively expensive outside the UK, almost
  tripling the cost of the diplay in shipping)

  I was planning to use a LED backlight one (modern ones are only about 1mm thicker,
  not 9mm). But it has the connector on the tall side so it is more work.

  Op 29 jan. 2012, om 21:55 heeft jammie het volgende geschreven:

  > use an oled they are direct replacements no need for pin 3 as there is no 
  > angle and no need for back light just unsolder old display
  > 
  > and solder new one in place you will need to add a nut and bolt due to there 
  > only being one solder side connection
  > 
  > this is the easyist oneto do as the vfd need hard wiring and are thicker
  > 
  > dont go led backlight route as these are 9 mm bigger than original and there 
  > is a lot of fiddling around.
  > 
  > 
  > 

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



  

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

Re: [emax] EMAX II Display Problems ....

2012-01-30 by Louis van Dompselaar

Check this:
http://www.dompselaar.org/EMU/EMAX/display.jpg

That's what I meant.  Left is the LED display I was talking about.  These are not as thick
as the old ones used to be.   Moreover, they can be made to sit closer to the board
as the chips  on the back are much smaller, which in effect makes it flush with
the original display.

I have some of the older LED displays here as well and they are indeed almost twice as thick.

That leaves only the connector to fiddle about with but it should be doable, at least 
until I find a source for 16x2 OLED displays.  Can't use the EMAX all now as the original
display is dead.


Op 30 jan. 2012, om 18:12 heeft jammie het volgende geschreven:

> led are much thicker beleive me i know as i have replaced over 20 emax displays
> 



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

Re: [emax] EMAX II Display Problems ....

2012-01-30 by jammie

yes i see its the same size when next to each other but if

it was to use the same connector it would be much higher

to use that dispaly you will need to hardwire the connection like we do on the vfd you wire single cables leaving a small lopp of cable so that when you fit the display theres is enough slack

you will need  to afix the lcd with bolts and nuts
Show quoted textHide quoted text
  ----- Original Message ----- 
  From: Louis van Dompselaar 
  To: emax@yahoogroups.com 
  Sent: Monday, January 30, 2012 6:34 PM
  Subject: Re: [emax] EMAX II Display Problems ....


    
  Check this:
  http://www.dompselaar.org/EMU/EMAX/display.jpg

  That's what I meant. Left is the LED display I was talking about. These are not as thick
  as the old ones used to be. Moreover, they can be made to sit closer to the board
  as the chips on the back are much smaller, which in effect makes it flush with
  the original display.

  I have some of the older LED displays here as well and they are indeed almost twice as thick.

  That leaves only the connector to fiddle about with but it should be doable, at least 
  until I find a source for 16x2 OLED displays. Can't use the EMAX all now as the original
  display is dead.

  Op 30 jan. 2012, om 18:12 heeft jammie het volgende geschreven:

  > led are much thicker beleive me i know as i have replaced over 20 emax displays
  > 

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



  

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

Re: [emax] EMAX II Display Problems ....

2012-01-30 by jammie

but if you get a oled display its just desolder old display and solder the new display to the header pins
Show quoted textHide quoted text
  ----- Original Message ----- 
  From: Louis van Dompselaar 
  To: emax@yahoogroups.com 
  Sent: Monday, January 30, 2012 6:34 PM
  Subject: Re: [emax] EMAX II Display Problems ....


    
  Check this:
  http://www.dompselaar.org/EMU/EMAX/display.jpg

  That's what I meant. Left is the LED display I was talking about. These are not as thick
  as the old ones used to be. Moreover, they can be made to sit closer to the board
  as the chips on the back are much smaller, which in effect makes it flush with
  the original display.

  I have some of the older LED displays here as well and they are indeed almost twice as thick.

  That leaves only the connector to fiddle about with but it should be doable, at least 
  until I find a source for 16x2 OLED displays. Can't use the EMAX all now as the original
  display is dead.

  Op 30 jan. 2012, om 18:12 heeft jammie het volgende geschreven:

  > led are much thicker beleive me i know as i have replaced over 20 emax displays
  > 

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



  

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

Re: [emax] EMAX II Display Problems ....

2012-01-30 by Louis van Dompselaar

Yes that's what I did.  Flatcable across the top of the PCB and soldered to the back.  Works a treat.  Didn't want to spend too much anyway as EMAX IIs go for next to nothing over here, sadly.


Op 30 jan. 2012 om 20:31 heeft "jammie" <jammie.emma@...> het volgende geschreven:

> yes i see its the same size when next to each other but if
> 
> it was to use the same connector it would be much higher
> 
> to use that dispaly you will need to hardwire the connection like we do on the vfd you wire single cables leaving a small lopp of cable so that when you fit the display theres is enough slack
> 
> you will need to afix the lcd with bolts and nuts
> ----- Original Message ----- 
> From: Louis van Dompselaar 
> To: emax@yahoogroups.com 
> Sent: Monday, January 30, 2012 6:34 PM
> Subject: Re: [emax] EMAX II Display Problems ....
> 
> Check this:
> http://www.dompselaar.org/EMU/EMAX/display.jpg
> 
> That's what I meant. Left is the LED display I was talking about. These are not as thick
> as the old ones used to be. Moreover, they can be made to sit closer to the board
> as the chips on the back are much smaller, which in effect makes it flush with
> the original display.
> 
> I have some of the older LED displays here as well and they are indeed almost twice as thick.
> 
> That leaves only the connector to fiddle about with but it should be doable, at least 
> until I find a source for 16x2 OLED displays. Can't use the EMAX all now as the original
> display is dead.
> 
> Op 30 jan. 2012, om 18:12 heeft jammie het volgende geschreven:
> 
> > led are much thicker beleive me i know as i have replaced over 20 emax displays
> > 
> 
> [Non-text portions of this message have been removed]
> 
> [Non-text portions of this message have been removed]
> 
> 


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

Re: EMAX II Display Problems ....

2012-02-03 by freddy1771994

It's me again who started this thread and I have a question:

Fortunately I finally managed it to make the display run again but one line of pixels weren't working. So I decided to disassemble the unit again conviced that I know what I have to do. Just a very little more pressure.

Then I reassembled the unit and started it and what did happen ?!
(http://www.flickr.com/photos/75453658@N08/6813384329/lightbox/)

I could cry...

I tried to change the pressure.... more .... less ... doesnt help... cleaned the contacts doesnt help .... everything for around 20 times

I believe that the display itself works, because I can see that the pixels on the left side flash if I want to load a bank (but the display simply can't show it).

Can you help me ?... Maybe other recommendations?

Thank you so much !

 




--- In emax@yahoogroups.com, Louis van Dompselaar <louis@...> wrote:
Show quoted textHide quoted text
>
> Yes that's what I did.  Flatcable across the top of the PCB and soldered to the back.  Works a treat.  Didn't want to spend too much anyway as EMAX IIs go for next to nothing over here, sadly.
> 
> 
> Op 30 jan. 2012 om 20:31 heeft "jammie" <jammie.emma@...> het volgende geschreven:
> 
> > yes i see its the same size when next to each other but if
> > 
> > it was to use the same connector it would be much higher
> > 
> > to use that dispaly you will need to hardwire the connection like we do on the vfd you wire single cables leaving a small lopp of cable so that when you fit the display theres is enough slack
> > 
> > you will need to afix the lcd with bolts and nuts
> > ----- Original Message ----- 
> > From: Louis van Dompselaar 
> > To: emax@yahoogroups.com 
> > Sent: Monday, January 30, 2012 6:34 PM
> > Subject: Re: [emax] EMAX II Display Problems ....
> > 
> > Check this:
> > http://www.dompselaar.org/EMU/EMAX/display.jpg
> > 
> > That's what I meant. Left is the LED display I was talking about. These are not as thick
> > as the old ones used to be. Moreover, they can be made to sit closer to the board
> > as the chips on the back are much smaller, which in effect makes it flush with
> > the original display.
> > 
> > I have some of the older LED displays here as well and they are indeed almost twice as thick.
> > 
> > That leaves only the connector to fiddle about with but it should be doable, at least 
> > until I find a source for 16x2 OLED displays. Can't use the EMAX all now as the original
> > display is dead.
> > 
> > Op 30 jan. 2012, om 18:12 heeft jammie het volgende geschreven:
> > 
> > > led are much thicker beleive me i know as i have replaced over 20 emax displays
> > > 
> > 
> > [Non-text portions of this message have been removed]
> > 
> > [Non-text portions of this message have been removed]
> > 
> > 
> 
> 
> [Non-text portions of this message have been removed]
>

Re: [emax] Re: EMAX II Display Problems ....

2012-02-03 by Nik Kinloch

Did you assemble it the wrong way round?
Show quoted textHide quoted text
On 03/02/2012 20:11, freddy1771994 wrote:
> It's me again who started this thread and I have a question:
>
> Fortunately I finally managed it to make the display run again but one line of pixels weren't working. So I decided to disassemble the unit again conviced that I know what I have to do. Just a very little more pressure.
>
> Then I reassembled the unit and started it and what did happen ?!
> (http://www.flickr.com/photos/75453658@N08/6813384329/lightbox/)
>
> I could cry...
>
> I tried to change the pressure.... more .... less ... doesnt help... cleaned the contacts doesnt help .... everything for around 20 times
>
> I believe that the display itself works, because I can see that the pixels on the left side flash if I want to load a bank (but the display simply can't show it).
>
> Can you help me ?... Maybe other recommendations?
>
> Thank you so much !
>

Re: EMAX II Display Problems ....

2012-02-03 by freddy1771994

--- In emax@yahoogroups.com, Nik Kinloch <nikkinloch@...> wrote:
>
> Did you assemble it the wrong way round?
> 

-> Yes I did. Well I just tried it again. So much pressure that it seemed to bruise. Now - with a loooot of fantasy - I can suppose what is written in the display ... 
But I cant imagine that more pressure is the right solution...

Re: EMAX II Display Problems ....

2012-02-03 by freddy1771994

This is my final result which was possible. So what do you believe is the problem?
http://www.flickr.com/photos/75453658@N08/6813947733/lightbox/

Thank you very much!!

Re: [emax] Re: EMAX II Display Problems ....

2012-02-03 by jammie

the lcd is fualty 

you might spend ages with pressure trying to get it right and a small nock will set it of again

get a new oled same fitting no rubbish backlight and good from any angle
Show quoted textHide quoted text
  ----- Original Message ----- 
  From: freddy1771994 
  To: emax@yahoogroups.com 
  Sent: Friday, February 03, 2012 10:24 PM
  Subject: [emax] Re: EMAX II Display Problems ....


    
  This is my final result which was possible. So what do you believe is the problem?
  http://www.flickr.com/photos/75453658@N08/6813947733/lightbox/

  Thank you very much!!



  

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

Re: EMAX II Display Problems ....

2012-02-04 by freddy1771994

Argh ... it worked and though it wasn't necessary I crushed it!... Ok
moaning doesn't help.
Well, I'm no lazy forum member and did a bit of research and found this
by jammie.emma explaining how to mount the new vfd display:

I've added some questions, maybe somebody could answer them so that this
could be an instruction for other EMAX (II) users.

[1) I'm an EMAX II Keyboard User. Is there anything different? ....]

"You need to take out mother board and remove invertor by desoldering it

you need to remove the front display take out the display they just pull
of as
they are not soldered
you need to remove the slide connectors from the the pcb with a solder
pump be
very carefull as the pads are week and to much heat will make them lift

they are in 2 rows of 7 you can leave the ones for the backlight
connection as
there is no connection needed for the back light as there is not one

now you need to wire in 13 cables missing pin 3 26awg cable

now solder pin 1 on pcb

the numbers go

13 14
11 12
09 10
07 08
05 06
03 04
01 02

and on the vfd its

1 2 3 4 5 6 7 8 9 10 11 12 13 14

so solder pin 1 to pin one on vfd

then 2 -2
miss pin 3 -3 as thats the angle and its not used on the vfd as there is
no
angle on the vfd is nc any way

4-4
5-5
6-6
7-7
8-8
9-9
10-10
11-11
12-12
13-13
14-14

leave 1 inch slack of cables so that you can move lcd into place easily

now tape up the soldered holes with insulation tape as vfd is going to
sit over
some of them

place the vfd over 1 set of holes near to the back light

[Maybe that's is just a language problem. I'm not sure where to place
it?]

fit a screw wit hwasher onto vfd from front

place 1 washer and a nut and clap the screw to the vfd place washer up
to nut
place vfd through hole on pcb

allign so vfd is straight and mark the pcb making sure it does not come
into
contact with any traces

now mark pcb and drill with a hss drill bit

now fit the scew and washers and nuts to the vfd and place the vfd
screwws
through both holes and affixe to pcb replace

pcb front panel

fit motherboard

remove psu and replace all caps so that you are fully servicing the
machine
[what are caps and why how serving them (buttons?)]

are you going to make it scsi compatible if so i do a board exchange
scsi for
non scsi board and £100

also do the slim floppy convertors £17

if your not confident in doing the work

i do the vfd labour upgrade for £40

i do the psu refurb for £40

and if you have the scsi upgrade already i do the upgrade for £50"

FINALLY I WOULD BE VERY THANKFUL IF SOMEBODY COULD LIST A WHOLE LIST OF
PARTS.
IF SOMEBODY HAD A PHOTO OF THE FINAL RESULT I GUESS IT WOULD SIMPLIFY
EVERYTHING..

Thank you very much!!!



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

Re: [emax] Re: EMAX II Display Problems ....

2012-02-04 by jammie

get an oled display as its a 1 for 1 echange no messing around with single wires
Show quoted textHide quoted text
  ----- Original Message ----- 
  From: freddy1771994 
  To: emax@yahoogroups.com 
  Sent: Saturday, February 04, 2012 12:30 PM
  Subject: [emax] Re: EMAX II Display Problems ....


    
  Argh ... it worked and though it wasn't necessary I crushed it!... Ok
  moaning doesn't help.
  Well, I'm no lazy forum member and did a bit of research and found this
  by jammie.emma explaining how to mount the new vfd display:

  I've added some questions, maybe somebody could answer them so that this
  could be an instruction for other EMAX (II) users.

  [1) I'm an EMAX II Keyboard User. Is there anything different? ....]

  "You need to take out mother board and remove invertor by desoldering it

  you need to remove the front display take out the display they just pull
  of as
  they are not soldered
  you need to remove the slide connectors from the the pcb with a solder
  pump be
  very carefull as the pads are week and to much heat will make them lift

  they are in 2 rows of 7 you can leave the ones for the backlight
  connection as
  there is no connection needed for the back light as there is not one

  now you need to wire in 13 cables missing pin 3 26awg cable

  now solder pin 1 on pcb

  the numbers go

  13 14
  11 12
  09 10
  07 08
  05 06
  03 04
  01 02

  and on the vfd its

  1 2 3 4 5 6 7 8 9 10 11 12 13 14

  so solder pin 1 to pin one on vfd

  then 2 -2
  miss pin 3 -3 as thats the angle and its not used on the vfd as there is
  no
  angle on the vfd is nc any way

  4-4
  5-5
  6-6
  7-7
  8-8
  9-9
  10-10
  11-11
  12-12
  13-13
  14-14

  leave 1 inch slack of cables so that you can move lcd into place easily

  now tape up the soldered holes with insulation tape as vfd is going to
  sit over
  some of them

  place the vfd over 1 set of holes near to the back light

  [Maybe that's is just a language problem. I'm not sure where to place
  it?]

  fit a screw wit hwasher onto vfd from front

  place 1 washer and a nut and clap the screw to the vfd place washer up
  to nut
  place vfd through hole on pcb

  allign so vfd is straight and mark the pcb making sure it does not come
  into
  contact with any traces

  now mark pcb and drill with a hss drill bit

  now fit the scew and washers and nuts to the vfd and place the vfd
  screwws
  through both holes and affixe to pcb replace

  pcb front panel

  fit motherboard

  remove psu and replace all caps so that you are fully servicing the
  machine
  [what are caps and why how serving them (buttons?)]

  are you going to make it scsi compatible if so i do a board exchange
  scsi for
  non scsi board and £100

  also do the slim floppy convertors £17

  if your not confident in doing the work

  i do the vfd labour upgrade for £40

  i do the psu refurb for £40

  and if you have the scsi upgrade already i do the upgrade for £50"

  FINALLY I WOULD BE VERY THANKFUL IF SOMEBODY COULD LIST A WHOLE LIST OF
  PARTS.
  IF SOMEBODY HAD A PHOTO OF THE FINAL RESULT I GUESS IT WOULD SIMPLIFY
  EVERYTHING..

  Thank you very much!!!

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



  

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

Re: EMAX II Display Problems ....

2012-02-04 by freddy1771994

OK, Thank you very much jammie emma! 
Could you please add a link since I'm not familiar concerning those displays. Maybe it's possible to get a blue one?

Re: EMAX II Display Problems ....

2012-02-04 by freddy1771994

A display like that ?

http://www.mostron.de/de/oled-mono/rheinlandpfalz/bachenberg/weh001602c001136.html

Do I understand it correctly, can I change the colour of the letters?

Finally, I really need nothing else?


BTW ... is it necessary to have a desoldering pump?

Thanks!

Re: [emax] Re: EMAX II Display Problems ....

2012-02-04 by jammie

yes and no if you dont have one then you need to cut the lcd and the connector so that you can desolder 1 pin at a time

if you want to keep the connector then a desoldering station is required as you need to desolder the pins on the old lcd

as for colour there is only yellow that i know of in the oled versions

if you want blue then vfd will be best but is more work involved and are a little hight in hieght is it going into a rack or keyboard

as a keyboard you can cut holes in the pcb as the traces are directly behind the lcd panel but on the rack they re not and so you can cut o hole for the large piece on the back that stops the vfd from sitting close to the pcb
Show quoted textHide quoted text
  ----- Original Message ----- 
  From: freddy1771994 
  To: emax@yahoogroups.com 
  Sent: Saturday, February 04, 2012 3:02 PM
  Subject: [emax] Re: EMAX II Display Problems ....


    
  A display like that ?

  http://www.mostron.de/de/oled-mono/rheinlandpfalz/bachenberg/weh001602c001136.html

  Do I understand it correctly, can I change the colour of the letters?

  Finally, I really need nothing else?

  BTW ... is it necessary to have a desoldering pump?

  Thanks! 



  

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

Re: EMAX II Display Problems ....

2012-02-04 by freddy1771994

--- In emax@yahoogroups.com, "jammie" <jammie.emma@...> wrote:
>
> yes and no if you dont have one then you need to cut the lcd and the connector so that you can desolder 1 pin at a time

1) I'm not 100% sure where this refers to? Desoldering pump, right?
 
> if you want to keep the connector then a desoldering station is required as you need to desolder the pins on the old lcd

2) That is the red small box where all those 16 pins go in, right? So that means I have to desolder them from the display unit so that they're still on the pcb fixed by the red connector box AND THEN soldering them to the new display (sounds easier than I thought before...) BUT ARE THE POSITIONS OF THE CONTACTS PARALLEL?
 
> as for colour there is only yellow that i know of in the oled versions

> if you want blue then vfd will be best but is more work involved and are a little hight in hieght is it going into a rack or keyboard

3) KEYBOARD (EMAX II TURBO)

> as a keyboard you can cut holes in the pcb as the traces are directly behind the lcd panel [[[but on the rack they re not and so you can cut o hole for the large piece on the back that stops the vfd from sitting close to the pcb]]]

4) Am I right when I say VFD diplays are much more expensive? They look cool and I'd prefer a VFD... BUT concerning the VFD the position of the contacts aren't the same so that I have to use wires, right? Furthermore I hope that I don't have to "rape" the emax case...

DO YOU HAVE A LINK JAMMIE EMMA WHERE YOU WOULD BUY YOUR DISPLAY (OLED;VFD)? 

THANK YOU VERY VERY MUCH!!!!!

Re: EMAX II Display Problems ....

2012-02-04 by BradM

Jammie, would this one be usable? They also have them in yellow and green.
http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_..._2137781_-1 

--- In emax@yahoogroups.com, "freddy1771994" <freddy1771994@...> wrote:
Show quoted textHide quoted text
>
> 
> 
> --- In emax@yahoogroups.com, "jammie" <jammie.emma@> wrote:
> >
> > yes and no if you dont have one then you need to cut the lcd and the connector so that you can desolder 1 pin at a time
> 
> 1) I'm not 100% sure where this refers to? Desoldering pump, right?
>  
> > if you want to keep the connector then a desoldering station is required as you need to desolder the pins on the old lcd
> 
> 2) That is the red small box where all those 16 pins go in, right? So that means I have to desolder them from the display unit so that they're still on the pcb fixed by the red connector box AND THEN soldering them to the new display (sounds easier than I thought before...) BUT ARE THE POSITIONS OF THE CONTACTS PARALLEL?
>  
> > as for colour there is only yellow that i know of in the oled versions
> 
> > if you want blue then vfd will be best but is more work involved and are a little hight in hieght is it going into a rack or keyboard
> 
> 3) KEYBOARD (EMAX II TURBO)
> 
> > as a keyboard you can cut holes in the pcb as the traces are directly behind the lcd panel [[[but on the rack they re not and so you can cut o hole for the large piece on the back that stops the vfd from sitting close to the pcb]]]
> 
> 4) Am I right when I say VFD diplays are much more expensive? They look cool and I'd prefer a VFD... BUT concerning the VFD the position of the contacts aren't the same so that I have to use wires, right? Furthermore I hope that I don't have to "rape" the emax case...
> 
> DO YOU HAVE A LINK JAMMIE EMMA WHERE YOU WOULD BUY YOUR DISPLAY (OLED;VFD)? 
> 
> THANK YOU VERY VERY MUCH!!!!!
>

Re: [emax] Re: EMAX II Display Problems ....

2012-02-04 by jammie

the case of the keyboad you have to remove some of the plastic from the inside of the case where the window is

i used a dremel and a metal flat rasp to remove 2mm from the inside plastic so the vfd sits nice 

they do look good when done on the keyboards they have special push in contacts these have to be removed and you need to remove the efoil invertor of the main board as its not needed

and you have to wire single cables to each of the terminals 

and the way they are you have to put some insulation tape over the finished solder pads as these sit under the lcd panel and all smd components of the vfd are not insulated
Show quoted textHide quoted text
  ----- Original Message ----- 
  From: freddy1771994 
  To: emax@yahoogroups.com 
  Sent: Saturday, February 04, 2012 4:40 PM
  Subject: [emax] Re: EMAX II Display Problems ....


    


  --- In emax@yahoogroups.com, "jammie" <jammie.emma@...> wrote:
  >
  > yes and no if you dont have one then you need to cut the lcd and the connector so that you can desolder 1 pin at a time

  1) I'm not 100% sure where this refers to? Desoldering pump, right?

  > if you want to keep the connector then a desoldering station is required as you need to desolder the pins on the old lcd

  2) That is the red small box where all those 16 pins go in, right? So that means I have to desolder them from the display unit so that they're still on the pcb fixed by the red connector box AND THEN soldering them to the new display (sounds easier than I thought before...) BUT ARE THE POSITIONS OF THE CONTACTS PARALLEL?

  > as for colour there is only yellow that i know of in the oled versions

  > if you want blue then vfd will be best but is more work involved and are a little hight in hieght is it going into a rack or keyboard

  3) KEYBOARD (EMAX II TURBO)

  > as a keyboard you can cut holes in the pcb as the traces are directly behind the lcd panel [[[but on the rack they re not and so you can cut o hole for the large piece on the back that stops the vfd from sitting close to the pcb]]]

  4) Am I right when I say VFD diplays are much more expensive? They look cool and I'd prefer a VFD... BUT concerning the VFD the position of the contacts aren't the same so that I have to use wires, right? Furthermore I hope that I don't have to "rape" the emax case...

  DO YOU HAVE A LINK JAMMIE EMMA WHERE YOU WOULD BUY YOUR DISPLAY (OLED;VFD)? 

  THANK YOU VERY VERY MUCH!!!!!



  

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

Re: [emax] Re: EMAX II Display Problems ....

2012-02-04 by jammie

look good will work but you will have to wire it the same way as the vfd

for it to be a 1 for 1 drop in replacement you need the 14 pins to be side parralel connection like the emax one is already

you will also need to measure the thickness of the original display as this one is 10mm and some are thinner at 8mm

2mm is ok as there is allowance of this size but any more thickness and it means lots of case modification
Show quoted textHide quoted text
  ----- Original Message ----- 
  From: BradM 
  To: emax@yahoogroups.com 
  Sent: Saturday, February 04, 2012 5:20 PM
  Subject: [emax] Re: EMAX II Display Problems ....


    
  Jammie, would this one be usable? They also have them in yellow and green.
  http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_..._2137781_-1 

  --- In emax@yahoogroups.com, "freddy1771994" <freddy1771994@...> wrote:
  >
  > 
  > 
  > --- In emax@yahoogroups.com, "jammie" <jammie.emma@> wrote:
  > >
  > > yes and no if you dont have one then you need to cut the lcd and the connector so that you can desolder 1 pin at a time
  > 
  > 1) I'm not 100% sure where this refers to? Desoldering pump, right?
  > 
  > > if you want to keep the connector then a desoldering station is required as you need to desolder the pins on the old lcd
  > 
  > 2) That is the red small box where all those 16 pins go in, right? So that means I have to desolder them from the display unit so that they're still on the pcb fixed by the red connector box AND THEN soldering them to the new display (sounds easier than I thought before...) BUT ARE THE POSITIONS OF THE CONTACTS PARALLEL?
  > 
  > > as for colour there is only yellow that i know of in the oled versions
  > 
  > > if you want blue then vfd will be best but is more work involved and are a little hight in hieght is it going into a rack or keyboard
  > 
  > 3) KEYBOARD (EMAX II TURBO)
  > 
  > > as a keyboard you can cut holes in the pcb as the traces are directly behind the lcd panel [[[but on the rack they re not and so you can cut o hole for the large piece on the back that stops the vfd from sitting close to the pcb]]]
  > 
  > 4) Am I right when I say VFD diplays are much more expensive? They look cool and I'd prefer a VFD... BUT concerning the VFD the position of the contacts aren't the same so that I have to use wires, right? Furthermore I hope that I don't have to "rape" the emax case...
  > 
  > DO YOU HAVE A LINK JAMMIE EMMA WHERE YOU WOULD BUY YOUR DISPLAY (OLED;VFD)? 
  > 
  > THANK YOU VERY VERY MUCH!!!!!
  >



  

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

Re: EMAX II Display Problems ....

2012-02-04 by freddy1771994

I guess my problem is this red box combined with comprehension problems ... sorry

http://www.emulatorarchive.com/Samplers/EmaxOverview/EmaxRepairs/LCD_Out_400x300.jpg 

On the back of those 14 holes, you see, is this red "box". Just removing it and there is space where I can solder the wires onto the pcb?
I'm wondering if I have "to do" something with the 2 power connection holes. Are they still required ?

FINALLY; which exact modelnumber of the vfd do I need ?

Maybe you're wondering why I ask so much questions but the price for the display is almost that what I earn in a month.. 

Thanks a lot for your help!

 

--- In emax@yahoogroups.com, "jammie" <jammie.emma@...> wrote:
Show quoted textHide quoted text
>
> the case of the keyboad you have to remove some of the plastic from the inside of the case where the window is
> 
> i used a dremel and a metal flat rasp to remove 2mm from the inside plastic so the vfd sits nice 
> 
> they do look good when done on the keyboards they have special push in contacts these have to be removed and you need to remove the efoil invertor of the main board as its not needed
> 
> and you have to wire single cables to each of the terminals 
> 
> and the way they are you have to put some insulation tape over the finished solder pads as these sit under the lcd panel and all smd components of the vfd are not insulated
>   ----- Original Message ----- 
>   From: freddy1771994 
>   To: emax@yahoogroups.com 
>   Sent: Saturday, February 04, 2012 4:40 PM
>   Subject: [emax] Re: EMAX II Display Problems ....
> 
> 
>     
> 
> 
>   --- In emax@...m, "jammie" <jammie.emma@> wrote:
>   >
>   > yes and no if you dont have one then you need to cut the lcd and the connector so that you can desolder 1 pin at a time
> 
>   1) I'm not 100% sure where this refers to? Desoldering pump, right?
> 
>   > if you want to keep the connector then a desoldering station is required as you need to desolder the pins on the old lcd
> 
>   2) That is the red small box where all those 16 pins go in, right? So that means I have to desolder them from the display unit so that they're still on the pcb fixed by the red connector box AND THEN soldering them to the new display (sounds easier than I thought before...) BUT ARE THE POSITIONS OF THE CONTACTS PARALLEL?
> 
>   > as for colour there is only yellow that i know of in the oled versions
> 
>   > if you want blue then vfd will be best but is more work involved and are a little hight in hieght is it going into a rack or keyboard
> 
>   3) KEYBOARD (EMAX II TURBO)
> 
>   > as a keyboard you can cut holes in the pcb as the traces are directly behind the lcd panel [[[but on the rack they re not and so you can cut o hole for the large piece on the back that stops the vfd from sitting close to the pcb]]]
> 
>   4) Am I right when I say VFD diplays are much more expensive? They look cool and I'd prefer a VFD... BUT concerning the VFD the position of the contacts aren't the same so that I have to use wires, right? Furthermore I hope that I don't have to "rape" the emax case...
> 
>   DO YOU HAVE A LINK JAMMIE EMMA WHERE YOU WOULD BUY YOUR DISPLAY (OLED;VFD)? 
> 
>   THANK YOU VERY VERY MUCH!!!!!
> 
> 
> 
>   
> 
> [Non-text portions of this message have been removed]
>

Re: EMAX II Display Problems ....

2012-02-04 by freddy1771994

Hi again JUST A LITTLE UPDATE

I DECIDED NOT TO BUY AN VFD I couldn't find an european seller. From America it would be too expensive (shipping+duties)

Now the oled. You wrote that this is much easier to mount. Which model (number) do you recommend? Do I need any onther parts?

Thank you very much! (I hope that my questions will find an end within a few messages)

Re: [emax] Re: EMAX II Display Problems ....

2012-02-04 by Nik Kinloch

Hey there,

My info on the OLED for the Emax 1 is at 
http://launch.groups.yahoo.com/group/emax/message/8142

If the Emax II is the same, then your problem is solved for about \ufffd25 
plus a little desoldering / soldering. Buy a desolder pump if you don't 
have one already.
Show quoted textHide quoted text
On 04/02/2012 19:43, freddy1771994 wrote:
> Hi again JUST A LITTLE UPDATE
>
> I DECIDED NOT TO BUY AN VFD I couldn't find an european seller. From America it would be too expensive (shipping+duties)
>
> Now the oled. You wrote that this is much easier to mount. Which model (number) do you recommend? Do I need any onther parts?
>
> Thank you very much! (I hope that my questions will find an end within a few messages)
>

Re: EMAX II Display Problems ....

2012-02-04 by freddy1771994

Hi thank you for that link. 
I will definitely get a display like that.

Where is the difference between:

1) http://www.rapidonline.com/Electronic-Components/16-x-2-OLED-Alphanumeric-Displays-500173/?sid=292447f7-1d42-4e22-a89f-d8ee21a09305

2) http://www.rapidonline.com/Electronic-Components/16x2-LCD-Display-Blue-Negative-Mode-White-LED-Backlight-57-2228  ?

Maybe somebody who knows what he's saying, would be so kind and write down a link of possible display(s)
To be honest I don't want to have an ugly yellow display. Perhaps someone could link a display with a black (blue) background and blue (black) letters 

That would be very nice.

Thank you very much in advance!!!

Re: EMAX II Display Problems ....

2012-02-04 by BradM

As Jammie informed me, it's where the pins are located, on the yellow display the pins are on the left like in the original emax display so it can be replaced no problem. On the blue displays you and I posted the pins are in a single row across the top so you need to use wires to make the connections.

--- In emax@yahoogroups.com, "freddy1771994" <freddy1771994@...> wrote:
Show quoted textHide quoted text
>
> Hi thank you for that link. 
> I will definitely get a display like that.
> 
> Where is the difference between:
> 
> 1) http://www.rapidonline.com/Electronic-Components/16-x-2-OLED-Alphanumeric-Displays-500173/?sid=292447f7-1d42-4e22-a89f-d8ee21a09305
> 
> 2) http://www.rapidonline.com/Electronic-Components/16x2-LCD-Display-Blue-Negative-Mode-White-LED-Backlight-57-2228  ?
> 
> Maybe somebody who knows what he's saying, would be so kind and write down a link of possible display(s)
> To be honest I don't want to have an ugly yellow display. Perhaps someone could link a display with a black (blue) background and blue (black) letters 
> 
> That would be very nice.
> 
> Thank you very much in advance!!!
>

Re: [emax] Re: EMAX II Display Problems ....

2012-02-05 by jack

emax2 is the same display

as for the vfd i get mine direct from noritake uk but they do have a noritake usa you can order direct

that oled display is in yellow but is the easiest 1 to fit as no additional wiring is required 

just a set of nuts and bolts to hold it into place

if you go on the site they might do other colours most manufacturers do
Show quoted textHide quoted text
  ----- Original Message ----- 
  From: Nik Kinloch 
  To: emax@yahoogroups.com 
  Sent: Saturday, February 04, 2012 9:45 PM
  Subject: Re: [emax] Re: EMAX II Display Problems ....


    
  Hey there,

  My info on the OLED for the Emax 1 is at 
  http://launch.groups.yahoo.com/group/emax/message/8142

  If the Emax II is the same, then your problem is solved for about £25 
  plus a little desoldering / soldering. Buy a desolder pump if you don't 
  have one already.

  On 04/02/2012 19:43, freddy1771994 wrote:
  > Hi again JUST A LITTLE UPDATE
  >
  > I DECIDED NOT TO BUY AN VFD I couldn't find an european seller. From America it would be too expensive (shipping+duties)
  >
  > Now the oled. You wrote that this is much easier to mount. Which model (number) do you recommend? Do I need any onther parts?
  >
  > Thank you very much! (I hope that my questions will find an end within a few messages)
  >


  
  No virus found in this message.
  Checked by AVG - www.avg.com
  Version: 2012.0.1913 / Virus Database: 2112/4788 - Release Date: 02/04/12


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

Re: [emax] Re: EMAX II Display Problems ....

2012-02-05 by jack

about 6-10mm difference in  depth and is a no no for emaxes with out totally butchering the front panel
Show quoted textHide quoted text
  ----- Original Message ----- 
  From: freddy1771994 
  To: emax@yahoogroups.com 
  Sent: Saturday, February 04, 2012 10:30 PM
  Subject: [emax] Re: EMAX II Display Problems ....


    
  Hi thank you for that link. 
  I will definitely get a display like that.

  Where is the difference between:

  1) http://www.rapidonline.com/Electronic-Components/16-x-2-OLED-Alphanumeric-Displays-500173/?sid=292447f7-1d42-4e22-a89f-d8ee21a09305

  2) http://www.rapidonline.com/Electronic-Components/16x2-LCD-Display-Blue-Negative-Mode-White-LED-Backlight-57-2228 ?

  Maybe somebody who knows what he's saying, would be so kind and write down a link of possible display(s)
  To be honest I don't want to have an ugly yellow display. Perhaps someone could link a display with a black (blue) background and blue (black) letters 

  That would be very nice.

  Thank you very much in advance!!!



  
  No virus found in this message.
  Checked by AVG - www.avg.com
  Version: 2012.0.1913 / Virus Database: 2112/4788 - Release Date: 02/04/12


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

Re: EMAX II Display Problems ....

2012-02-05 by freddy1771994

Hi again,

I found this:

http://www.conrad.com/LCD-Module-2X16-blue.htm?websale7=conrad-int&pi=181731&ci=SHOP_AREA_17651_0212040&Ctx={ver/7/ver}{st/3ec/st}{cmd/0/cmd}{m/websale/m}{s/conrad-int/s}{l/int/l}{sf/%3Cs1%3E181731%20-%2062%3C/s1%3E/sf}{p1/186aa6112e9283ebf0fdb512ecbca661/p1}{md5/cf3f0999ed5e9046d889417af3b55025/md5}

Can I use that? So all in all I have to look for displays not bigger than 10mm, right? Or what is the maximal depth? Nearly every display I found is more than 13 mmm. 

Thanks a lot!...

Re: [emax] Re: EMAX II Display Problems ....

2012-02-05 by jack

thats becuase you are kooking at led lcd they are thicker and dont fit most synths with out butchery of cases the vfd is thinner but is stil to thick as you also have to do a little case modification but not to much

the oled are just right 

so any module larger than 10mm means butchery to the case 

its in the message oled displays they dont have backlights so dont have the thickness of and led backlight which are 5-8mm deep just for the backlight hence why the thickness of the lcds are thicker

so this is the last time im writing this

oled display 16x2 what ever colour you can get with the 14 pin parallel side connection 10mm thickness will be a direct replacement just have to desolder old display from connector and solder new one on removing connections for the el foil backlight and fit with 2 nuts and bolts to keep it machanically in place

dont ask me this or any other question about this topic again its been written to many times before if you dont know what you are doing then get some one who does know
Show quoted textHide quoted text
  ----- Original Message ----- 
  From: freddy1771994 
  To: emax@yahoogroups.com 
  Sent: Sunday, February 05, 2012 1:45 PM
  Subject: [emax] Re: EMAX II Display Problems ....


    
  Hi again,

  I found this:

  http://www.conrad.com/LCD-Module-2X16-blue.htm?websale7=conrad-int&pi=181731&ci=SHOP_AREA_17651_0212040&Ctx={ver/7/ver}{st/3ec/st}{cmd/0/cmd}{m/websale/m}{s/conrad-int/s}{l/int/l}{sf/%3Cs1%3E181731%20-%2062%3C/s1%3E/sf}{p1/186aa6112e9283ebf0fdb512ecbca661/p1}{md5/cf3f0999ed5e9046d889417af3b55025/md5}

  Can I use that? So all in all I have to look for displays not bigger than 10mm, right? Or what is the maximal depth? Nearly every display I found is more than 13 mmm. 

  Thanks a lot!...



  
  No virus found in this message.
  Checked by AVG - www.avg.com
  Version: 2012.0.1913 / Virus Database: 2112/4789 - Release Date: 02/04/12


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

Re: EMAX II Display Problems ....

2012-02-09 by freddy1771994

Hi,
sorry it's me again.
Just for 2 very simple questions:

I finally bought this: http://www.reichelt.de/LCD-Module-organisch/EA-W162-X3LW/index.html?;ACTION=3;LA=444;GROUP=A526;GROUPID=3012;ARTICLE=113317;START=0;SORT=artnr;OFFSET=75;SID=13Ty6HRn8AAAIAAAQA3HEfc2de5c57b939d52ec7f02b00b4acda7

Now it is said in jammie emma's description that I have to desolder this old red slider pin box on the pcb. Is that necessary or can I just use the now free holes where the old pins were in? (because I do not own a desoldering pump) (http://www.flickr.com/photos/75453658@N08/6847082909/)

And just for check; if I'm standing in front of the pcb as if it's mounted in the emax then the old pin order is 
13 14
 :  :
 1  2
Right? I ask this question because on another website it's different(last post: http://www.gearslutz.com/board/electronic-music-instruments-electronic-music-production/624486-emu-emax-new-display.html)

Thanks a lot!! This should be my last question....

Re: [emax] Re: EMAX II Display Problems ....

2012-02-09 by jammie

yes as its a top solder connection so you will have to hard wire the  lcd as the connections are for a side parallel solder connection if you brought the one we said then you would of not have to
Show quoted textHide quoted text
  ----- Original Message ----- 
  From: freddy1771994 
  To: emax@yahoogroups.com 
  Sent: Thursday, February 09, 2012 4:40 PM
  Subject: [emax] Re: EMAX II Display Problems ....


    
  Hi,
  sorry it's me again.
  Just for 2 very simple questions:

  I finally bought this: http://www.reichelt.de/LCD-Module-organisch/EA-W162-X3LW/index.html?;ACTION=3;LA=444;GROUP=A526;GROUPID=3012;ARTICLE=113317;START=0;SORT=artnr;OFFSET=75;SID=13Ty6HRn8AAAIAAAQA3HEfc2de5c57b939d52ec7f02b00b4acda7

  Now it is said in jammie emma's description that I have to desolder this old red slider pin box on the pcb. Is that necessary or can I just use the now free holes where the old pins were in? (because I do not own a desoldering pump) (http://www.flickr.com/photos/75453658@N08/6847082909/)

  And just for check; if I'm standing in front of the pcb as if it's mounted in the emax then the old pin order is 
  13 14
  : :
  1 2
  Right? I ask this question because on another website it's different(last post: http://www.gearslutz.com/board/electronic-music-instruments-electronic-music-production/624486-emu-emax-new-display.html)

  Thanks a lot!! This should be my last question....



  

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

Re: [emax] Re: EMAX II Display Problems ....

2012-02-09 by jammie

its a bit different for thew keyboard as all soldering is on the front of the pcb as on the rack its on the back

with the keyboard pcb you need to place the lcd facing you and you can see which pin is which pin

then you solder 1 wire to that pin and then solder the wire to the oled which is the corisponding pin

with a loop of wire you have to do the soldering of this wire from the back of the pcb with the solder on the front of the pcb facing you this needs to be insulated when you fit the

oled panel
Show quoted textHide quoted text
  ----- Original Message ----- 
  From: freddy1771994 
  To: emax@yahoogroups.com 
  Sent: Thursday, February 09, 2012 4:40 PM
  Subject: [emax] Re: EMAX II Display Problems ....


    
  Hi,
  sorry it's me again.
  Just for 2 very simple questions:

  I finally bought this: http://www.reichelt.de/LCD-Module-organisch/EA-W162-X3LW/index.html?;ACTION=3;LA=444;GROUP=A526;GROUPID=3012;ARTICLE=113317;START=0;SORT=artnr;OFFSET=75;SID=13Ty6HRn8AAAIAAAQA3HEfc2de5c57b939d52ec7f02b00b4acda7

  Now it is said in jammie emma's description that I have to desolder this old red slider pin box on the pcb. Is that necessary or can I just use the now free holes where the old pins were in? (because I do not own a desoldering pump) (http://www.flickr.com/photos/75453658@N08/6847082909/)

  And just for check; if I'm standing in front of the pcb as if it's mounted in the emax then the old pin order is 
  13 14
  : :
  1 2
  Right? I ask this question because on another website it's different(last post: http://www.gearslutz.com/board/electronic-music-instruments-electronic-music-production/624486-emu-emax-new-display.html)

  Thanks a lot!! This should be my last question....



  

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

Re: EMAX II Display Problems ....

2012-02-09 by freddy1771994

So I'm annoyed now by my comprehension problems.

It's very kind that jammie emma tries to help me so much, but I guess he's a few levels above my comprehension of microelectronic language.
I really don't want to annoy you with questions anymore. 

I will do this now (I don't understand why I have to remove the red pin slider box on the backside) 
PLEASE look at the link (I will just solder each wire from those points to the right position on the display)

http://www.flickr.com/photos/75453658@N08/6847316795/lightbox/

The pin order is right? According to the other forum, it's wrong.
13 14  ?
 1  2  ?
[from the position as if it's mount in the keyboard.]





--- In emax@yahoogroups.com, "jammie" <jammie.emma@...> wrote:
Show quoted textHide quoted text
>
> yes as its a top solder connection so you will have to hard wire the  lcd as the connections are for a side parallel solder connection if you brought the one we said then you would of not have to
>   ----- Original Message ----- 
>   From: freddy1771994 
>   To: emax@yahoogroups.com 
>   Sent: Thursday, February 09, 2012 4:40 PM
>   Subject: [emax] Re: EMAX II Display Problems ....
> 
> 
>     
>   Hi,
>   sorry it's me again.
>   Just for 2 very simple questions:
> 
>   I finally bought this: http://www.reichelt.de/LCD-Module-organisch/EA-W162-X3LW/index.html?;ACTION=3;LA=444;GROUP=A526;GROUPID=3012;ARTICLE=113317;START=0;SORT=artnr;OFFSET=75;SID=13Ty6HRn8AAAIAAAQA3HEfc2de5c57b939d52ec7f02b00b4acda7
> 
>   Now it is said in jammie emma's description that I have to desolder this old red slider pin box on the pcb. Is that necessary or can I just use the now free holes where the old pins were in? (because I do not own a desoldering pump) (http://www.flickr.com/photos/75453658@N08/6847082909/)
> 
>   And just for check; if I'm standing in front of the pcb as if it's mounted in the emax then the old pin order is 
>   13 14
>   : :
>   1 2
>   Right? I ask this question because on another website it's different(last post: http://www.gearslutz.com/board/electronic-music-instruments-electronic-music-production/624486-emu-emax-new-display.html)
> 
>   Thanks a lot!! This should be my last question....
> 
> 
> 
>   
> 
> [Non-text portions of this message have been removed]
>

Re: EMAX II Display Problems ....

2012-02-09 by freddy1771994

I'm just frustrated:

Just say yes or no: http://www.flickr.com/photos/75453658@N08/6847417353/lightbox/

I would like to kick the pcb board out of my window. Just to safe my reputation. I'll go to the university next year and usually english is one of my best subjects but I simply can't handle this description very well...
I know what you want to say but isn't it possible to do it just from the front ?

Sorry, best
Freddy

--- In emax@yahoogroups.com, "jammie" <jammie.emma@...> wrote:
Show quoted textHide quoted text
>
> its a bit different for thew keyboard as all soldering is on the front of the pcb as on the rack its on the back
> 
> with the keyboard pcb you need to place the lcd facing you and you can see which pin is which pin
> 
> then you solder 1 wire to that pin and then solder the wire to the oled which is the corisponding pin
> 
> with a loop of wire you have to do the soldering of this wire from the back of the pcb with the solder on the front of the pcb facing you this needs to be insulated when you fit the
> 
> oled panel
>   ----- Original Message ----- 
>   From: freddy1771994 
>   To: emax@yahoogroups.com 
>   Sent: Thursday, February 09, 2012 4:40 PM
>   Subject: [emax] Re: EMAX II Display Problems ....
> 
> 
>     
>   Hi,
>   sorry it's me again.
>   Just for 2 very simple questions:
> 
>   I finally bought this: http://www.reichelt.de/LCD-Module-organisch/EA-W162-X3LW/index.html?;ACTION=3;LA=444;GROUP=A526;GROUPID=3012;ARTICLE=113317;START=0;SORT=artnr;OFFSET=75;SID=13Ty6HRn8AAAIAAAQA3HEfc2de5c57b939d52ec7f02b00b4acda7
> 
>   Now it is said in jammie emma's description that I have to desolder this old red slider pin box on the pcb. Is that necessary or can I just use the now free holes where the old pins were in? (because I do not own a desoldering pump) (http://www.flickr.com/photos/75453658@N08/6847082909/)
> 
>   And just for check; if I'm standing in front of the pcb as if it's mounted in the emax then the old pin order is 
>   13 14
>   : :
>   1 2
>   Right? I ask this question because on another website it's different(last post: http://www.gearslutz.com/board/electronic-music-instruments-electronic-music-production/624486-emu-emax-new-display.html)
> 
>   Thanks a lot!! This should be my last question....
> 
> 
> 
>   
> 
> [Non-text portions of this message have been removed]
>

Re: [emax] Re: EMAX II Display Problems ....

2012-02-09 by jammie

yes you can solder to them pins if you want thats your choice

the pin order is usually from behind when your soldering

on the keyboard you solder from the front so that the pin order is backwards

thats why i said place your old lcb on the pcb the numbers are on the front of the lcd

and you will see how the pins are in the sockets

so that you wire correctly
Show quoted textHide quoted text
  ----- Original Message ----- 
  From: freddy1771994 
  To: emax@yahoogroups.com 
  Sent: Thursday, February 09, 2012 5:31 PM
  Subject: [emax] Re: EMAX II Display Problems ....


    
  So I'm annoyed now by my comprehension problems.

  It's very kind that jammie emma tries to help me so much, but I guess he's a few levels above my comprehension of microelectronic language.
  I really don't want to annoy you with questions anymore. 

  I will do this now (I don't understand why I have to remove the red pin slider box on the backside) 
  PLEASE look at the link (I will just solder each wire from those points to the right position on the display)

  http://www.flickr.com/photos/75453658@N08/6847316795/lightbox/

  The pin order is right? According to the other forum, it's wrong.
  13 14 ?
  1 2 ?
  [from the position as if it's mount in the keyboard.]

  --- In emax@yahoogroups.com, "jammie" <jammie.emma@...> wrote:
  >
  > yes as its a top solder connection so you will have to hard wire the lcd as the connections are for a side parallel solder connection if you brought the one we said then you would of not have to
  > ----- Original Message ----- 
  > From: freddy1771994 
  > To: emax@yahoogroups.com 
  > Sent: Thursday, February 09, 2012 4:40 PM
  > Subject: [emax] Re: EMAX II Display Problems ....
  > 
  > 
  > 
  > Hi,
  > sorry it's me again.
  > Just for 2 very simple questions:
  > 
  > I finally bought this: http://www.reichelt.de/LCD-Module-organisch/EA-W162-X3LW/index.html?;ACTION=3;LA=444;GROUP=A526;GROUPID=3012;ARTICLE=113317;START=0;SORT=artnr;OFFSET=75;SID=13Ty6HRn8AAAIAAAQA3HEfc2de5c57b939d52ec7f02b00b4acda7
  > 
  > Now it is said in jammie emma's description that I have to desolder this old red slider pin box on the pcb. Is that necessary or can I just use the now free holes where the old pins were in? (because I do not own a desoldering pump) (http://www.flickr.com/photos/75453658@N08/6847082909/)
  > 
  > And just for check; if I'm standing in front of the pcb as if it's mounted in the emax then the old pin order is 
  > 13 14
  > : :
  > 1 2
  > Right? I ask this question because on another website it's different(last post: http://www.gearslutz.com/board/electronic-music-instruments-electronic-music-production/624486-emu-emax-new-display.html)
  > 
  > Thanks a lot!! This should be my last question....
  > 
  > 
  > 
  > 
  > 
  > [Non-text portions of this message have been removed]
  >



  

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

Re: [emax] Re: EMAX II Display Problems ....

2012-02-09 by jammie

you can do it like that if you want but you will need more slack on the cable plus also it will be hard for you to insulate

plus you will have a mass of wires under the lcd pcb

but if you are happy to do it that way then fine

you are the one doing the work and its you that has to fit the lcd panel back to the pcb

having fitted vfd and lcd and oled modules to over 100 synths and samplers im just pointing out the pit falls
Show quoted textHide quoted text
  ----- Original Message ----- 
  From: freddy1771994 
  To: emax@yahoogroups.com 
  Sent: Thursday, February 09, 2012 5:57 PM
  Subject: [emax] Re: EMAX II Display Problems ....


    
  I'm just frustrated:

  Just say yes or no: http://www.flickr.com/photos/75453658@N08/6847417353/lightbox/

  I would like to kick the pcb board out of my window. Just to safe my reputation. I'll go to the university next year and usually english is one of my best subjects but I simply can't handle this description very well...
  I know what you want to say but isn't it possible to do it just from the front ?

  Sorry, best
  Freddy

  --- In emax@yahoogroups.com, "jammie" <jammie.emma@...> wrote:
  >
  > its a bit different for thew keyboard as all soldering is on the front of the pcb as on the rack its on the back
  > 
  > with the keyboard pcb you need to place the lcd facing you and you can see which pin is which pin
  > 
  > then you solder 1 wire to that pin and then solder the wire to the oled which is the corisponding pin
  > 
  > with a loop of wire you have to do the soldering of this wire from the back of the pcb with the solder on the front of the pcb facing you this needs to be insulated when you fit the
  > 
  > oled panel
  > ----- Original Message ----- 
  > From: freddy1771994 
  > To: emax@yahoogroups.com 
  > Sent: Thursday, February 09, 2012 4:40 PM
  > Subject: [emax] Re: EMAX II Display Problems ....
  > 
  > 
  > 
  > Hi,
  > sorry it's me again.
  > Just for 2 very simple questions:
  > 
  > I finally bought this: http://www.reichelt.de/LCD-Module-organisch/EA-W162-X3LW/index.html?;ACTION=3;LA=444;GROUP=A526;GROUPID=3012;ARTICLE=113317;START=0;SORT=artnr;OFFSET=75;SID=13Ty6HRn8AAAIAAAQA3HEfc2de5c57b939d52ec7f02b00b4acda7
  > 
  > Now it is said in jammie emma's description that I have to desolder this old red slider pin box on the pcb. Is that necessary or can I just use the now free holes where the old pins were in? (because I do not own a desoldering pump) (http://www.flickr.com/photos/75453658@N08/6847082909/)
  > 
  > And just for check; if I'm standing in front of the pcb as if it's mounted in the emax then the old pin order is 
  > 13 14
  > : :
  > 1 2
  > Right? I ask this question because on another website it's different(last post: http://www.gearslutz.com/board/electronic-music-instruments-electronic-music-production/624486-emu-emax-new-display.html)
  > 
  > Thanks a lot!! This should be my last question....
  > 
  > 
  > 
  > 
  > 
  > [Non-text portions of this message have been removed]
  >



  

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

Re: EMAX II Display Problems ....

2012-02-10 by freddy1771994

Hi,

bad news:

I mounted the oled this afternoon, was extremly exited now after hours ofter working and what did happen: Nothing.
The display shows no function at all - nothing.
I paid so much attention to solder everything right and now nothing happens.

http://www.flickr.com/photos/75453658@N08/6852933619/lightbox/
http://www.flickr.com/photos/75453658@N08/6852933175/lightbox/


What do think can be the problem?

Thank you very much!!!!

((I didn't remove the inverter, my solder wasn't hot enough))

Re: [emax] Re: EMAX II Display Problems ....

2012-02-10 by jammie

have you tested pin 2 to see if you have 5v

also did you put your lcd on the front to see the correct pins

as  you have to wire it looking from the front
Show quoted textHide quoted text
  ----- Original Message ----- 
  From: freddy1771994 
  To: emax@yahoogroups.com 
  Sent: Friday, February 10, 2012 7:56 PM
  Subject: [emax] Re: EMAX II Display Problems ....


    
  Hi,

  bad news:

  I mounted the oled this afternoon, was extremly exited now after hours ofter working and what did happen: Nothing.
  The display shows no function at all - nothing.
  I paid so much attention to solder everything right and now nothing happens.

  http://www.flickr.com/photos/75453658@N08/6852933619/lightbox/
  http://www.flickr.com/photos/75453658@N08/6852933175/lightbox/

  What do think can be the problem?

  Thank you very much!!!!

  ((I didn't remove the inverter, my solder wasn't hot enough))



  

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

Re: [emax] Re: EMAX II Display Problems ....

2012-02-10 by jammie

also before i switched on i would of checked pin 1 to see if it was ground
Show quoted textHide quoted text
  ----- Original Message ----- 
  From: jammie 
  To: emax@yahoogroups.com 
  Sent: Friday, February 10, 2012 8:06 PM
  Subject: Re: [emax] Re: EMAX II Display Problems ....


    
  have you tested pin 2 to see if you have 5v

  also did you put your lcd on the front to see the correct pins

  as you have to wire it looking from the front 
  ----- Original Message ----- 
  From: freddy1771994 
  To: emax@yahoogroups.com 
  Sent: Friday, February 10, 2012 7:56 PM
  Subject: [emax] Re: EMAX II Display Problems ....

  Hi,

  bad news:

  I mounted the oled this afternoon, was extremly exited now after hours ofter working and what did happen: Nothing.
  The display shows no function at all - nothing.
  I paid so much attention to solder everything right and now nothing happens.

  http://www.flickr.com/photos/75453658@N08/6852933619/lightbox/
  http://www.flickr.com/photos/75453658@N08/6852933175/lightbox/

  What do think can be the problem?

  Thank you very much!!!!

  ((I didn't remove the inverter, my solder wasn't hot enough))

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



  

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

Re: EMAX II Display Problems ....

2012-02-10 by freddy1771994

Hi 
I have no possibility to test if there are 5v, but I would say that I soldered it very exactly.


Did you get my message jammie emma?

Re: [emax] Re: EMAX II Display Problems ....

2012-02-10 by jammie

yes no probs £40 for fix thats it

you arrange postage and return
Show quoted textHide quoted text
  ----- Original Message ----- 
  From: freddy1771994 
  To: emax@yahoogroups.com 
  Sent: Friday, February 10, 2012 9:03 PM
  Subject: [emax] Re: EMAX II Display Problems ....


    
  Hi 
  I have no possibility to test if there are 5v, but I would say that I soldered it very exactly.

  Did you get my message jammie emma?



  

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

Re: EMAX II Display Problems ....

2012-02-11 by freddy1771994

I simply cannot imagine that I did something wrong... 

Is there maybe a absoultely last thing I could try/check? 

Ortherwise I will put my luck in your hands. 
Thanks
Freddy

Re: [emax] Re: EMAX II Display Problems ....

2012-02-11 by jammie

you need a multi meter to see if you are getting the corect voltages you could have cold solder joints

the pads are very small and suffer from thermal overheat when desldering and soldering

looking at your solder joints they are a bit messy 

you need a tester with out one you can diagnose continuity of joints from the connect of the pcb

i always test from the connector of the ribbon cable to the 
lcd panel to make sure that i have continuity and also of testing that the pin 1 is ground as if you have no ground connection then its a open circuit
Show quoted textHide quoted text
  ----- Original Message ----- 
  From: freddy1771994 
  To: emax@yahoogroups.com 
  Sent: Saturday, February 11, 2012 9:29 AM
  Subject: [emax] Re: EMAX II Display Problems ....


    
  I simply cannot imagine that I did something wrong... 

  Is there maybe a absoultely last thing I could try/check? 

  Ortherwise I will put my luck in your hands. 
  Thanks
  Freddy



  

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

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