User Manual: fdiskc archive or Bit 99
Reset Proceedures: N/A
Operating System code:
MIDI or other control protocol:
Software related Links:
Patches or knob settings: .wav file
Circuit Overview: below
Scematics/Service Manual: Bit 01 in PNG format
Common Service Issues/Tips: below
Parts Sources: semiconductors Keys
Uncommon chips/modules used:8253 prog.timers (dco), CEM3328 VCF, LM13700 vca's.
General Info Links: Vintage Synth Explorer
I'll get more details when I have a chance to review diagrams. These are digitally controlled analog synths with a few unique twists I guess.
LM13700's are present I see. Seen the 13600 fail in filter applications. Always verify signal is getting through there if something goes away. I have no experience though on these. Any information appreciated.