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

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Subject: Last antilog post - I promise!

From: Bob Grieb <bobgrieb@yahoo.com>
Date: 2014-03-02

I checked the DAC value at IC9-1 during time slot 6.  It's always the same and corresponds to the very top C key when the octave switch is in the 4' position.  On my unit it's about 3.6 volts.   So the opto-coupler circuit would be looking at the conversion of that voltage.   Those two long RC's explain why notes played during the first few seconds after power up are sliding around.