OBERHEIM SYNTH

I just got a Matrix 1000, seems great, but I have voice issues in some patches, occasionally I'll come across a patch where two voices are a lot quieter or seem thinner or don't play. Other than that it seems to be working fine about 95% of the time.

There was one patch where lots seemed kind of messed up, maybe that was the patch though (984) doesn't play up high in the register some don't play some seem thin.

Is this usually fixed by replacing the CEM3396 chips? is there a diagnostic to figure out which need to be replaced, or is it just advisable to replace them all if you're having trouble? Or is this something completely different?

Thanks in advance!
-Dave

I reported here the same problem some months ago, and I am sure some other users has the same trouble. I didn't try to change the memory backup battery yet, thing that probably could work if it is too old. I suggest You to try this option before trying to search a broken voice chip.Please let me know if You have success in changing the battery only.
Best wishes,
Francesco.

--- Mer 18/11/09, fretnoize <fretnoize@...> ha scritto:

Da: fretnoize <fretnoize@...>
Oggetto: [oberheim] Matrix 1000 voice troubles with a few patches
A: oberheim@yahoogroups.com
Data: Mercoledì 18 novembre 2009, 02:19







 



  


    
      
      
      I just got a Matrix 1000, seems great, but I have voice issues in some patches, occasionally I'll come across a patch where two voices are a lot quieter or seem thinner or don't play. Other than that it seems to be working fine about 95% of the time.



There was one patch where lots seemed kind of messed up, maybe that was the patch though (984) doesn't play up high in the register some don't play some seem thin.



Is this usually fixed by replacing the CEM3396 chips? is there a diagnostic to figure out which need to be replaced, or is it just advisable to replace them all if you're having trouble? Or is this something completely different?



Thanks in advance!

-Dave

Hi

look at this thread

http://launch.groups.yahoo.com/group/oberheim/message/671


First do the self calibration as described. Maybe that helps. If not put the matrix in the voice display mode, so you see which voice number fails.
Then swap the voice chips and check if the failure moves with the chip.
If it does, replace the voice chip, if not there is something wrong in another place, which will be a harder to find.

good luck,

Ralf

--- In oberheim@yahoogroups.com, "fretnoize" <fretnoize@...> wrote:

>
> I just got a Matrix 1000, seems great, but I have voice issues in some patches, occasionally I'll come across a patch where two voices are a lot quieter or seem thinner or don't play. Other than that it seems to be working fine about 95% of the time.
> 
> There was one patch where lots seemed kind of messed up, maybe that was the patch though (984) doesn't play up high in the register some don't play some seem thin.
> 
> Is this usually fixed by replacing the CEM3396 chips? is there a diagnostic to figure out which need to be replaced, or is it just advisable to replace them all if you're having trouble? Or is this something completely different?
> 
> Thanks in advance!
> -Dave
>