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

Hey everyone.

Small update. My KLM-370 was well destroyed by the battery acid, so that has been totally reworked today, and working perfect.

So I got through the VR6&7 calibration procedure, and am again stuck at getting the sawtooth wave calibrated at 1.0v p-p.

Everything traces correctly past VR2, then after R78, the voltage adjustment makes no impact.

My assumption here is that is is being biased by a voltage out of IC14 pin 1, which is fed from MG delay, and "ST" off CN05-16. Therefore I think my problem maybe on the other end of CN05-16, ie, KLM-366.
This trace is sitting on +5.0v

Anthony.