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Subject: Re: [PolySix] Re: Polysix Issues with: VCA / Octave Switch / Program 1 LED

From: klosmon <klosmon@sbcglobal.net>
Date: 2011-01-29

>
>
>
> >
> > At 2:02 Uhr +0000 27.01.2011, Alexis V. Rogers wrote:
> > > I rechecked the connections and everything was good. The battery
> voltage was
> > > low, however, so I swapped in a new one. Now, the Octave switch
> and the
> > > Program 1 LED are back to normal.
>
In the first place, that's pretty strange, since the battery affects
neither of those.

> But, the VCA Attenuator is still not
> > > working. The switch tests good, and so do the diodes connected to
> it. I've
> > > also checked the verified the connections from DO3 to the KLM-367.
> >
>
Look at IC35 on the CPU board -- pins 4, 7, 14 and 13 should be seeing
D04 through D07. Pin 5 should be seeing the P25 line from the CPU.
Turning the rotary switch should show varying outputs on pins 2, 10, 1
and 11.

~G
>
> >
>



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