Roland U-20 -1989    Weight=? Lbs. Number manufactured = MSR = $1795

User Manual: Roland US or VSE below
Reset Proceedures: N/A
Operating System code:
MIDI or other control protocol:
Software related Links:
Patches or knob settings: Zicweb
Circuit Overview: below
Scematics/Service Manual:
Common Service Issues/Tips: below
Parts Sources: Keys knobs semiconductors misc
Uncommon chips/modules used:
General Info Links: Vintage Synth Explorer

Circuit Overview:
     Straight forward ROMpler.

Service Tips:
     Other than key cleanings and some dirty buttons and key sensor strips that eventually crack/go open I haven't seen much trouble with these machines.

Roland still stocks many parts for older instruments! You can always order them through your local Service Center and see what happens! Otherwise I have some parts also so don't hesitate to ask.
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