Roland JV-90/JV-80/JV-50/JV-35 -1992-94    Weight=? Lbs. Number manufactured = ? MSR = $2050

User Manual: VSE or Roland US
Operating System code:
MIDI or other control protocol:
Software related Links:
Patches or knob settings: Planet Groove
Circuit Overview: below
Scematics/Service Manual:
Service pics:
Common Service Issues/Tips: below
Parts Sources: Keys except JV80 JV80 Weighted Keys knobs semiconductors misc
Uncommon chips/modules used: Many
General Info Links: Sound on Sound review or Vintage Synth Explorer

Circuit Overview:
     Rom based digital synths with various expansion options and 28 note polyphony usually it appears. Fairly limited facilities but some nice sounds.

Service Tips:
     Not aware of any issues on these.

Roland may still have some parts for these.