Re. Kenton kit - huh, I hadn't seen that one before. Although it's for Hz/V or V/Oct, not midi. I once midified a Jen SX1000 by soldering optocoulers to all the keys and connecting all of those to a midi-to-trigger pcb. Did the same to a CS70m lol. But in that case I knew the Kenton kit for that one...

There's no such thing as a TI2 Indigo or TI Indigo. The Indigo predates the TI and has no usb for remote "Total Integration" control.

You should check out the JP8 restoration blog that's currently in-progress:

https://jup8restoration.wordpress.com/2 ... ocessions/

Ha! Nice one. The black-looking face plate threw me completely.

A friend was asking me about this synth being used as a prop in 1977 - looks like a custom/DIY job to me.

Any ideas?

Try plugging and unplugging cable into the various input jacks, especially the VCO CV IN. Alternatively, plug a cable from the KBD CV OUT into the VCO CV IN. Since the jacks are normalized, it could be that they're not making proper contact anymore when the cables are removed. Plugging and unpluggin...

What's with the AS-1's weird phasing, especially noticeable on the last patch?

Somewhat related: is it just me, or are there some versions of the RZ-1 where you can change the pattern while playing and others where you can't?

Did you check the psu voltages?

Which replacement voltage regulator did you use?

It's 15V according to the schematic:

http://therogoffs.com/cs80/manuals/CS60 ... ematic.jpg

Can you take a picture of the original bulb and also the socket?

Ah, a successor to my RS9000 ES lol http://sneak-thief.com/RS9000.jpg Speaking of the Montage bits you pasted on that mockup, I bought a Montage 7 a month ago. After having an RM1x and 2 RS7000s, I skipped all the Motif stuff because it didn't bring anything innovative to the table. And the UI for t...

Those traces around the battery are looking like Swiss cheese. Also, who knows what's happening under the chips in that area. You can see that the 74HC08 next to the battery was removed and a socket was put in. If you're handy with a multimeter you could start testing all suspect traces for continui...