Oberheim Matrix-1000 -1987    Weight = 9.2 Lbs. Number manufactured = ? MSR = $599

User Manual: Overacker or Far too Good
Reset Proceedures: And special functions at Retrosound.de
Operating System code:
MIDI or other control protocol: youngmonkey.ca
Software related Links: Overacker
Patches or knob settings: Overacker
Circuit Overview: below
Scematics/Service Manual: Hylander or Oberheim Heaven
Service photo (component highlights!):Matrix-1000 TECH DETAILS
Common Service Issues/Tips: below
Parts Sources: Keys knobs semiconductors misc
Uncommon chips/modules used: 68B09 CPU, 82C54 Timers, AM6012 DAC,CEM3396 voice
General Info Links: Vintage Synth Explorer

Circuit Overview:
     Analog subtractive with digital control. 12DCO 6 voice with a 1000 preset library of Matrix 6 sounds basically rather than a focus on controlling the parameters. Can load Matrix-6 sounds via sysex.

Service Tips:
     See the Matrix-1000 Tech details page I linked above. Fantastic job of giving clear pointers to the major components and data sheets for them, Firmware tips, midi spec, user manual, and so on. I've never worked on one of these.

Aside from some of the Curtis chips and maybe CPU I stock everything all the time electronically. I've gotten the chips when needed from other techs or off ebay. Knobs may be difficult to find exact replacement. The switches are available from analogdiehard@att.net I hear.
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