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

hi,
i am working on a polysix that is sometimes perfectly functional for long stretches, but
randomly exhibits a weird problem. it seems to have nothing to do with how long it's been
on. basically, the bank d button and patch 4 button start to come on and the patch starts
to deteriorate, turning on vco modulation, pwm, etc, and doesn't want to save patterns
correctly. it's always d and 4. the battery has recently been replaced with a new one, and
some minor corrosion damaged was repaired. sometimes the synth behaves normally, and
has no problem saving and recalling patches.
any ideas?
thanks,
greg