Yamaha CS-30 -1977


User Manual: Yamaha
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: fdiskc archive or patch sheets
Circuit Overview: below
Scematics/Service Manual: fdiskc archive or Manual Manor
Common Service Issues/Tips: below
Parts Sources: Keys knobs semiconductors misc
Uncommon chips/modules used:M51620P/IG00150 lfo chip, M51621L/IG00151 VCA's, IG00156 VCF
Modifications:clock input mod
General Info Links: Vintage Synth Explorer

Circuit Overview:
     A subtractive analog synth similar in many ways to other CS series but bigger.

Service Tips:
     Typical problems in CS series are power supply over voltages which blow tantalum capacitors and they short, or the caps just fail over the years. During this various chips may be taken out. I've seen LFO chip, VCA's and dac comparator fail so they might be most susceptable.

Parts:
I believe I should have any electronic part or keys for these save exact transformer, etc. Ask if you have need.
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