Archive of the former Yahoo!Groups mailing list: Discussion about the Korg PolySix synthesizer

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Subject: Polysix VCF and EG only functions NOT working.

From: "scottboardway" <scottboardway@yahoo.com>
Date: 2007-12-12

Any help would be more than greatly appreciated. I recently bought a
non working Polysix figuring the obvious. I opened it up and removed
the varta battery and cleaned any noticeable corrosion with isopropyl
alc. 70%. I closed it up for now to play around with it for a bit.
Nearly every key was dead but the two or three that did work allowed
me to test things out. Aside from sounding scratchy and
unpredictable i.e. random sounds, sporadic led changes, the sound
responded to ALL knob movements. Every single one. I figured that
maybe the battery damage wasnt that bad. So I opened it back up the
following day to clean all key contacts, (now all keys work 100%),
and picked up some 90% isopropyl and clean the board a little more.
I fear I went wrong here as my next step was using a deoxit pen to
further clean the battery area as well as spraying some contact
cleaner on the panel boards underneath the front panel KLM-370. I
was obviously trying to clean out the pots and figured that was the
most effective way at getting at them. I closed it back up and it
sounded perfect. Everything works except VCF and ADSR. The
programmer even seems to work although I have yet to put a new
battery in. Im wondering if I shorted something with either the
deoxit or the contact cleaner and if so what? Or if it is just a bad
traced that worked for a minute and now has gone bad? Again I would
really appreciate any help. Ive scoured this group as well as
analogue heaven, old crow's etc and can't find anyone with the same
problem of just those two funcions not working.