User Manual:Arpexplorer.com
Reset Proceedures: N/A
Operating System code: N/A
Patches or knob settings: Arpexplorer.com
Circuit Overview: below
Scematics/Service Manual: Arpexplorer.com
Common Service Issues/Tips: below
Parts Sources: Keys knobs semiconductors misc
Uncommon chips/modules used: 4034 filter sub-module, ROM chips?
General Info Links: Vintage Synth Explorer
Circuit Overview:
8 Preset voices and noise in similar form to pro-soloist design wise I'm sure. From the block diagram, the waves are actually from a divider/shaper and there are two different signal mixes to the VCF. So apparently you can select 16' or 8' or 4' or 2' of saw/pulse, and the same footage options of square waves. And then they named them after the generic instruments they most resemble. And noise can be selected in the saw buss also. VCA and VCF are controled by ADSR in 'manual mode' No aftertouch though it appears which is a bummer.
Service Tips:
I've not worked on one as of yet but probably a lot of similarity to Pro-soloist.
Parts:
Lots of discrete parts in these. I have a scrap Omni Mk 1 unit with no upper board. Always feel free to ask or check my Parts
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