Sequential Circuits Prophet 600 -1982    Weight = 33 Lbs. Number mfg.=5000MRP=$1995


User Manual: Manual Manor (Notelt's below gives some good overviews)
Reset Proceedures: N/A
Operating System code: ERPOM
MIDI or other control protocol: Skynet
Software related Links:
Patches or knob settings: VSE or Notelt's patch sheet and sound data
Circuit Overview: below
Scematics/Service Manual: oldschool or Manual Manor
Common Service Issues/Tips: below
Parts Sources: Keys knobs semiconductors misc
Uncommon chips/modules used: Z80, DAC71, CEM3340 VCO, CEM3374 VCF
Modifications:keypad, etc.
General Info Links: Vintage Synth Explorer





Circuit Overview:
     Z80 controlled synth using 6 pairs of Curtiss CEM3340 vco synth with 6 CEM3374 filters. With the T8, the first MIDI synth.


Service Tips:
     You'll need new EPROM (see above) if MIDI is onmi always. Capable of stacking all 12VCO's for ultra thick leads by cranking the mix knob all the way left before storing the patch as I recall. (Helpful while troubleshooting also).


Parts:
I have lots of the parts but not so many of the hard to find ones. CPUs and VCF's at the moment.
Contact