A simple subtractive analog synth with preset ROM control matrix like ARP pro-soloist in many ways. Aftertouch can control various parameters and 1 vco, 1 lfo.
Richard Atkinson reports that he had an offset voltage develop out of one of the potted modules on his SY2. He installed a capacitor to pass signal and block the DC offset and restored the output to normalcy.
I believe I should have most electronic parts for these. Yamaha does not support old units. Ask if you have need.
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