Discussion about the Korg PolySix synthesizer

I've got a few problems that I can't figure out.  Unfortunately, my LFO is bleeding into the VCA? and I can't figure out a way to stop it.  It's not a violent bleed but it's enought to make the Polysix unusable.  If I turn all of the controls down, it is still there.  All of the controls are functional.  All of the potentiometers test out OK.  I tested all cables for continuity.  I cleaned the LFO modulation select switch and replaced the 4051 on KLM 369 without any luck.  I read somewhere that somebody suggested cutting a trace, but they couldn't remember enough details about what they did.  I didn't see any calibration proceedure related to the LFO modulation either.  Everything else works fine.

Does anybody have any suggestions?  Logic and microprocessing are really beyond my knowledge.

-Mike