At the very least, you should consider repalcing the 5V rectifier. It is severely underrated, and often burns the PCBA.
I replaced mine with a hefty one from Radio Shack, around 8 years ago. It only costs a ffew $ and about15 minutes or less to install.

The OB8 is very easy to work on. There is a lot of room inside. The only thing I don't like is that the upper voice board needs to be held up, if you are working on the lower one.

The Calibration procedure is built right into the ROM. You just enable it with a switch.

On 7/1/05, Antone Ray < tflas@... > wrote:

I am a new member of the group but my playing experience on Oberheim
goes clear back to the early module days. I later recorded one of my
albums using all Oberheim keyboards and modules. Recently I was asked
to refurbish an OB-8 and get it ready for sale, and I am considering
buying it myself. How "user servicable" is this unit Are replacement
keys available Chips Display Power supply All that good stuff. I
will see the keyboard on July 5th but won't have access to ac or audio
until I take it back to the studio. Cosmetically, is there anything
specific I should look for beyond the obvious (holes, broken keys,
dents, missing knobs, bent pots); soot around pots, burns aroung the
ac cord, discoloration around the jacks, rattles, -that kind of stuff





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