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

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Subject: Unison not selectable and fast modulation on VCO not coming from MG

From: moogchild@yahoo.es
Date: 2014-08-03

Hi, I need your help, guys. Afeter troubleshooting KLM367 with slight battery leakage, replacing the battery, the IC at the left and the electrolitic capacitor at the right, I find that the VCOs goes heavily modulated by a fast sine wave not coming from the MG nor from the bender/mod. Also unison mode is not selectable. I've double checked the continuity of the traces in the damaged area a few times with a multimeter and everything looks fine. Any clue?. Thanks for your help in advance.