MATRIXSYNTH: Roland MKS-80 Rev. 4 "Super Jupiter" 8-Voice Analog Synthesizer (CEM Version)

Saturday, July 23, 2016

Roland MKS-80 Rev. 4 "Super Jupiter" 8-Voice Analog Synthesizer (CEM Version)


via this auction

"This is Revision 4 with CEM3340 VCOs and CEM3360 VCAs. VCF is Roland IR3109.

Full working condition, including the infamous backlight. Cosmetically 8 out of 10 - the front panel has a couple very minor nicks (mostly on the top edge), the top cover has some scratches from racking and unracking.

When I bought the synth just over two years ago, the following work was done:
The backlight circuit was rebuilt with a new high-voltage transformer and new transistors.
New electroluminescent strip was installed behind the display.
Brand new Panasonic filter capacitors were installed in the power supply.
All connectors were cleaned and reseated.
Voice boards were checked for issues and adjusted against the service manual.
The AC inlet socket was replaced with a standard 3-prong IEC socket.
Assigner board ROM v4.0 and voice board ROMs v2.0 were installed.
The two faders and the Tuning pot were cleaned."

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