Circuit Overview:
Analog subtractive with digital control galore. 12DCO 6 voice. Identical to the Matrix 12 in a half voiced desktop version. This matrix 12 page here has a lot of good information; things you may want to know before attempting to troubleshoot these.
Service Tips:
Troubleshooting should be similar to a lot of other analogs with digital control but..a lot more of it to deal with. I strongly recommend nobody who isn't quite experienced try to work on these synths in general. Not a piece to learn on. :-) The DAC chips have been known to be a problem and are not available commonly unfortunately. See alphaentek for a great page on this synth and other Oberheims.
Parts:
You might find these people helpful who bought parts when Gibson offloaded them:
KICS USA
Phone: 760 246-3866
Fax: 760 246-3494
or 800 603-5427 if it still works (I checked..none of these are good anymore. Will update if I get some that are.)
Contact