Xpantastic!

Hi, I have a few CEM3374s and CEM3372s for your Xpander/Matrix-12 in stock now. All chips are tested and guaranteed working.

Thanks,
Doug
synthparts.com

Hello!
Excuse my bad english i'm french.
I've got an xpander witch 3374 of voice N°6 needs to get replace cos tuning 
fails...
all 3372 have already been replaced.
I think for a better result i should replace the all 6 3374 don't you think.
How much would it be for 6 of them plus shipping to France?
Would you accept Paypal transfer?

Thank you very much for reading me.
I hope to get good news from you soon.
Bye
Peggy & Franck






________________________________
De : synthparts <synthparts@...>
À : xpantastic@yahoogroups.com
Envoyé le : Sam 4 septembre 2010, 1h 39min 03s
Objet : [xpantastic] CEM3374 VCO and CEM3372 VCF/VCA chips available

  
Hi, I have a few CEM3374s and CEM3372s for your Xpander/Matrix-12 in stock now. 
All chips are tested and guaranteed working.

Thanks,
Doug
synthparts.com

Hi,

Please, you can contact Doug directly in his email address. But, be aware that a CEM3374 is one of the most rare vintage synth chips! Therefore, you should buy them as many as you can afford or is available. I would take a pair as a minimum. But, in any case, you just need to change that chip, which is not working. Take all the precautions against the static electricity, which can break this and many other ships, if you are careless. Have you also tried to push   the chips back to their places? They have the tendency to come up after many years of use. Or, remove the assumably problematic chip and then push it carefully and tightly back to its place. This could well be enough to fix the problem. An other as important work is to replace all condensators, which tend to dry during the years. This is very typically done also just as a precaution.

Good luck!
 

--- In xpantastic@yahoogroups.com, serra peggy <serrapeggy@...> wrote:

>
> Hello!
> Excuse my bad english i'm french.
> I've got an xpander witch 3374 of voice N°6 needs to get replace cos tuning 
> fails...
> all 3372 have already been replaced.
> I think for a better result i should replace the all 6 3374 don't you think.
> How much would it be for 6 of them plus shipping to France?
> Would you accept Paypal transfer?
> 
> Thank you very much for reading me.
> I hope to get good news from you soon.
> Bye
> Peggy & Franck
> 
> 
> 
> 
> 
> 
> ________________________________
> De : synthparts <synthparts@...>
> À : xpantastic@yahoogroups.com
> Envoyé le : Sam 4 septembre 2010, 1h 39min 03s
> Objet : [xpantastic] CEM3374 VCO and CEM3372 VCF/VCA chips available
> 
>   
> Hi, I have a few CEM3374s and CEM3372s for your Xpander/Matrix-12 in stock now. 
> All chips are tested and guaranteed working.
> 
> Thanks,
> Doug
> synthparts.com
>

Hi everyone there!

Thanx for all your comments and support!
I'm going on the way of recapping...anyway if on of us hear about some CEM3374 
available let me know!
I'll stay tuned.

Bye


PS: I love my Xpander as it's like the secret weapon of my studio, i think it's 
the same for many of us...




________________________________
De : envia94 <tares@...>
À : xpantastic@yahoogroups.com
Envoyé le : Mar 7 septembre 2010, 13h 30min 55s
Objet : Re: Re : [xpantastic] CEM3374 VCO and CEM3372 VCF/VCA chips available

  
Hi,

Please, you can contact Doug directly in his email address. But, be aware that a 
CEM3374 is one of the most rare vintage synth chips! Therefore, you should buy 
them as many as you can afford or is available. I would take a pair as a 
minimum. But, in any case, you just need to change that chip, which is not 
working. Take all the precautions against the static electricity, which can 
break this and many other ships, if you are careless. Have you also tried to 
push   the chips back to their places? They have the tendency to come up after 
many years of use. Or, remove the assumably problematic chip and then push it 
carefully and tightly back to its place. This could well be enough to fix the 
problem. An other as important work is to replace all condensators, which tend 
to dry during the years. This is very typically done also just as a precaution.

Good luck!


--- In xpantastic@yahoogroups.com, serra peggy <serrapeggy@...> wrote:

>
> Hello!
> Excuse my bad english i'm french.
> I've got an xpander witch 3374 of voice N°6 needs to get replace cos tuning 
> fails...
> all 3372 have already been replaced.
> I think for a better result i should replace the all 6 3374 don't you think.
> How much would it be for 6 of them plus shipping to France?
> Would you accept Paypal transfer?
> 
> Thank you very much for reading me.
> I hope to get good news from you soon.
> Bye
> Peggy & Franck
> 
> 
> 
> 
> 
> 
> ________________________________
> De : synthparts <synthparts@...>
> À : xpantastic@yahoogroups.com
> Envoyé le : Sam 4 septembre 2010, 1h 39min 03s
> Objet : [xpantastic] CEM3374 VCO and CEM3372 VCF/VCA chips available
> 
> 
> Hi, I have a few CEM3374s and CEM3372s for your Xpander/Matrix-12 in stock now. 
>
> All chips are tested and guaranteed working.
> 
> Thanks,
> Doug
> synthparts.com
>

There is sometimes one CEM3374 or so for sale at www.ebay.com, www.ebay.co.uk, or www.ebay.de. In an extremely desperate situation, you may also try to ask me again.

envia94 wrote:
> There is sometimes one CEM3374 or so for sale at www.ebay.com, www.ebay.co.uk, or www.ebay.de. In an extremely desperate situation, you may also try to ask me again.

I have a question which can anyone answer?

My Xpander shows all tuning tests as 'SUCCESS', no failures. But the 
voices sound a bit 'parpy' and tinny.

Is it possible for tuning to succeed, yet the voice chips are still 
faulty? Or do the tests mean my Xpander is fine.

Thanks,

Jeremy.

Tony Cappellini wrote:
> 
> 
> Here's something that may be interesting to some.
> 
> Someone who is good at patching, come up with a great bass patch (and 
> some others),
> and record a few notes of that patch.
> 
> Upload the patch, notes text file, and audio file to the Yahoo site.
> 
> Then we can all download the patch, listen to the audio file and compare 
> it to the sound on our own boxes.
> 
> Of course, there will be some differences due to the audio playback on 
> each system, but it would still be an interesting experiment.
> 
> I never though the bass sounded good on my Xpander.
> 
> What do the rest of you think??

Count me in!

Thanks,

Jeremy.

>Jeremy Wrote:

>I have a question which can anyone answer?

>My Xpander shows all tuning tests as 'SUCCESS', no failures. But the 
>voices sound a bit 'parpy' and tinny.
>Is it possible for tuning to succeed, yet the voice chips are still 
>faulty? Or do the tests mean my Xpander is fine.
>Thanks,
>Jeremy.



Hi Jeremy,

Is it on all voices, or the stereo outs?  If it's the stereo outs, there is 
a TLO72 opamp ( U1) which drives the output  jacks. 

You could try replacing this. It's in a socket so it's easy to do. ( and cheap) 
If you open it up, and look at the potentiometer board attached to the front 
panal. It is right next to the volume pot.  Aside from that, the panning circuit 

is after the tuning circuits and could cause a low bass response problem. In 
this case there are 6 4051 analog switches that could be replaced.

If the problem is on all voices, PeWe's advice is solid, and recapping all the 
capacitors on the voice board is wise.  Actually for a 20+ year old synth it is 
probobly a good thing to do anyway.
However it seems strange to me, that all the voices would fail the same way. 
   
Also I have to agree with Tony that the Xpander /M12 is not the best at bass 
sounds. Usually I need to stack a couple of voices up when I need a deep bass 
tone.

Best regards

Karl Schmeer

Hi, I have a few more of these chips in stock now. Thanks, Doug synthparts.com

--- In xpantastic@yahoogroups.com, "envia94" <tares@...> wrote:

> Please, you can contact Doug directly in his email address. But, be aware that a CEM3374 is one of the most rare vintage synth chips! Therefore, you should buy them as many as you can afford or is available. I would take a pair as a minimum. But, in any case, you just need to change that chip, which is not working. Take all the precautions against the static electricity, which can break this and many other ships, if you are careless. Have you also tried to push   the chips back to their places? They have the tendency to come up after many years of use. Or, remove the assumably problematic chip and then push it carefully and tightly back to its place. This could well be enough to fix the problem. An other as important work is to replace all condensators, which tend to dry during the years. This is very typically done also just as a precaution.
> 
> Good luck!
>  
> 
> --- In xpantastic@yahoogroups.com, serra peggy <serrapeggy@> wrote:
> >
> > Hello!
> > Excuse my bad english i'm french.
> > I've got an xpander witch 3374 of voice N°6 needs to get replace cos tuning 
> > fails...
> > all 3372 have already been replaced.
> > I think for a better result i should replace the all 6 3374 don't you think.
> > How much would it be for 6 of them plus shipping to France?
> > Would you accept Paypal transfer?
> > 
> > Thank you very much for reading me.
> > I hope to get good news from you soon.
> > Bye
> > Peggy & Franck
> > 
> > 
> > 
> > 
> > 
> > 
> > ________________________________
> > De : synthparts <synthparts@>
> > À : xpantastic@yahoogroups.com
> > Envoyé le : Sam 4 septembre 2010, 1h 39min 03s
> > Objet : [xpantastic] CEM3374 VCO and CEM3372 VCF/VCA chips available
> > 
> >   
> > Hi, I have a few CEM3374s and CEM3372s for your Xpander/Matrix-12 in stock now. 
> > All chips are tested and guaranteed working.
> > 
> > Thanks,
> > Doug
> > synthparts.com
> >
>