Discussion about the Korg PolySix synthesizer

Check the 4.7K pullup resistor and the diodes and resistors around the comparator.   Maybe something is not connected on the pcb.    The logic probe could be acting as a pullup possibly.

    Bob




________________________________
 From: "josh.nursing@gmail.com" <josh.nursing@gmail.com>
To: PolySix@yahoogroups.com 
Sent: Monday, January 6, 2014 9:49 AM
Subject: [PolySix] RE: Lots of pots not working, MG, VCF, EG.
 


  
Funny, I used the logic probe on CPU pin 1, and suddenly I get control over Cutoff, Res and EG Intensity (but it's flaky, as sometimes it happens).

Nothing changed, except the keyboard got disconnected and reconnected.