Yamaha SY35 -1992    Weight = 15 Lbs. Number mfg.= ? MRP=$899?

User Manual: Yamaha
Reset Proceedures: N/A
Operating System code:
MIDI or other control protocol: See Manual
Software related Links:
Patches or knob settings: Synthzone
Circuit Overview: below
Scematics/Service Manual:
Common Service Issues/Tips: below
Parts Sources: Keys knobs semiconductors misc
Uncommon chips/modules used: Many
Modifications:memory expansion
General Info Links: VSE

Circuit Overview:
     A digital synthesizer which utilizes special processing chips designed to support Yamaha's FM synthesis and AWM architecture. B700 home model has many similarities apparently.

Service Tips:
      Key movement is the same on these as the other SY's except 77 and 99 it appears. I finally got one and see we were misinforming people saying they took DX type keys. Not sure who told me that. Anyway so probably the typical yamaha product with fairly high reliablity all the way around unless something gets physically broken. Except the keyboard contact strip which may need cleaning with ethanol. If it still doesn't work then I don't think it's probably available. Scrap something. The paint didn't work well when I tried it on one of these types of contact strips.

While Yamaha normally does not keep parts around more than 5 years or so, I stock what I can.
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