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

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Subject: Re: [PolySix] Common MG control board issue

From: Bob Grieb <bobgrieb@yahoo.com>
Date: 2014-01-02

Looks like the cut was to separate some circuitry from +5V on the control board.   Then on my unit a separate blue wire was run from the power supply to bring +5V to that circuitry.  This may have been done for noise reasons.

Bob


From: "josh.nursing@gmail.com" <josh.nursing@gmail.com>
To: PolySix@yahoogroups.com
Sent: Thursday, January 2, 2014 8:01 AM
Subject: [PolySix] Common MG control board issue

 
Happy 2014 to all.

While continuing to investigate my malfunctioning Polysix, I inspected the leftmost control board, the one which has a blue connector soldered to the power supply.

If you follow that trace, you may find a break in the line somewhere as I did. A break was also found in the same board of the spare Polysix (now being parted), and also from the Polysix of a member on French forum anafrog.

I repaired both boards.

Yash