Discussion about the Korg PolySix synthesizer

> So what do I get this week? A board from hell. No, thats not right. I
> have two boards from hell. The corrosion moved up the earthing wire and
> had attacked the right hand pot board as well. 12 tracks on that boards
> were wiped out. The corrosion on the assigner board, although thinly
> spread, has affected and wiped out the 74LS08s, the 4011s, the RAM chip,
> all the 4042s, the uproc socket and four of the main LFO resistors. This
> is the worst I have yet seen. I guess as time goes by they will get
> worse and worse.
> 
> Sad thing is that this was serviced in 1990 and the battery wasn't
> replaced. If they only knew...

I just reflected on an ad for a P6 that had been modified into a mono-synth 
with MIDI. I suspected battery damage, and I was right! A battery leakage 
had killed three of the six filter chips, a large number of tracks, oscillator
chips, envelopes. The guy who owned it was only able to restore ONE voice 
back to normal function. Then he had added a homebrew monophonic MIDI and 
portamento. He was asking around \ufffd180 for the thing. No way! \ufffd50 for the
spare parts maybe. I think we are in the the 11th hour with respect to saving 
the last P6s missing the battery replacement. Let's buy and repair now!

Frank