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

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Subject: Re: [PolySix] Apreggio

From: Bob Grieb <bobgrieb@yahoo.com>
Date: 2016-04-29

If the LEDs turn on and off when you press the corresponding switch, then the
8049 key assigner MCU is reading the switches correctly. I think all of the logic
to implement those features is in the code of that MCU. Maybe try replacing that chip?
Maybe you can borrow a good on just to try.

Bob

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On Thu, 4/28/16, chrismitchrocks@yahoo.com [PolySix] <PolySix@yahoogroups.com> wrote:

Subject: [PolySix] Apreggio, Chord Mode, Unison, Poly button do not work. Help?
To: PolySix@yahoogroups.com
Date: Thursday, April 28, 2016, 7:05 PM




I have tested the buttons with a multimeter and
they all successfully connect when held down.  The buttons
each light up correctly; the unison patches display the
unison LED.  The arpeggio rate LED responds
correctly.
I also
checked the ribbon cable going from the arpeggio knob board
to the buttons board and each of these wires were connected
properly.
Any ideas
what to check?  I thought about replace the buttons, but
since they connect fine it seems like they should
work.