Discussion about the Korg PolySix synthesizer

Update, 
Ive narrowed it down to the VCF section of parameters.  

I disconnected connector 1 (on board 376)
This disabled the VCF and EG params. (As i can still mod. all other
params.)
Now when I change the prog with the bank selector I can play the
selected sound and it remains ok.  then when I plug connector 1 back
in, thats when I get the random jumps in the VCF

I just plugged connector 1 back into the 376 board and the cutoff was
jumping again.  

if I mess with the cutoff I can get it back working.  so Im thinking
something on the board that the cutoff knob is on is acting up. 
unless the 376 is sending the cutoff jumpy signals.

there's a Ghost in the Machine Roxanne!