User Manual: fdiskc archive
Reset Proceedures: N/A
Operating System code: N/A
MIDI or other control protocol: N/A
Software related Links: N/A
Patches or knob settings:
Circuit Overview: below
Scematics/Service Manual: fdiskc archive
Common Service Issues/Tips: below
Parts Sources: Keys knobs semiconductors misc
Uncommon chips/modules used: M110B1 keyboard processor, TDA1008 divider, LM13600 ota, LM3046, uA3086 transistor arrays, TDA1022 BBD,
General Info Links: Polynomial or Sander's site
A combo of the 'mono' and a Orchestra basically. The Sequential Circuits 'Fugue' is the same machine with different silk screen, as with the Orchestra 2/Prelude which they also bought from Siel to diversify their product line.
Never worked on one but see mono and Orchestra notes.
I have several scraps from Siel units and lots of the discrete parts.
Contact Sound Doctorin'