Drifting power is what will make your Poly tune go off.
Have you checked the power supply?
/Mike
From: "ianpoly800@... [korgpolyex]" <korgpolyex@yahoogroups.com>
To: korgpolyex@yahoogroups.com
Sent: Wednesday, July 19, 2017 10:12 PM
Subject: [korgpolyex] Mk II Tuning chip
To: korgpolyex@yahoogroups.com
Sent: Wednesday, July 19, 2017 10:12 PM
Subject: [korgpolyex] Mk II Tuning chip
Hey, I tried to fix my Poly Mk II a while ago to no avail. I picked it up today and really missed it.
My Poly has tune drifting problems, and I was thinking of replacing the chip responsible for tuning to try to fix my problem. The trouble is that I looked around and couldn't find/figure out which chip that is.
Does anyone have an idea?
Many thanks,
Ian