How about IC18 and Q3? Are they OK? Also,
there is a 4051 (IC31) in that feedback loop. Maybe it's gone
bad?
Bob
From: "pasitive@gmail.com [PolySix]" <PolySix@yahoogroups.com>
To: PolySix@yahoogroups.com
Sent: Saturday, December 20, 2014 8:56 AM
Subject: Re: [PolySix] Tuning issue.
To: PolySix@yahoogroups.com
Sent: Saturday, December 20, 2014 8:56 AM
Subject: Re: [PolySix] Tuning issue.
PC-1 replaced, without any effect.
Cannot get basic tune to C at all. It's A or A#.
Very strange.