Roland MKS-10 -1984

User Manual: MKS page
Reset Proceedures: N/A
Operating System code:
MIDI or other control protocol: See Manual
Software related Links:
Patches or knob settings:
Circuit Overview: below
Scematics/Service Manual: Manual Manor
Common Service Issues/Tips: below
Parts Sources: knobs semiconductors misc
Uncommon chips/modules used: MN3007/MN3101 BBD and Driver, IR3109 VCF, uPC1252H, HD6801 CPU
General Info Links: MKS page

Circuit Overview:
     This is an early MIDI module...maybe the first rack mount one? There is a LOT of bad information on the net about this one. I see a review saying it's all analog. First, the unit is 16Voice and has 16 analog filters and digitally controlled analog envelopes it appears from my brief overview of the diagram. But the signal generation is entirely digital. David Morely had commented somewhere it was 12 bit which would not be surprising given the age of it. That was pretty good for '84 usually. I love layering the harpsichord and electric pianos with digital sounds using the chorus and tremelo. The clav is indeed very useful as well. The pianos sound too piano except for the horribly unrealistic gritty textures :-). Alone they're a decent analog piano sound but they're kind of annoying to layer in a way with other pianos. I get better sounds for that with the MKS70.

Service Tips:

Roland might still have some parts for these so always check there first. Let me know if you need a specific part from my listings in the parts section that you don't find elsewhere or whatever.
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