Thanks Philippe and Malte. I will try the verifications.
I have also ordered some parts from Newark that should arrive soon so that I can use a new socket as well as try some new chips.
Will update as I go.
Great to see so many knowledgeable people who share freely!
Yash
--- In PolySix@yahoogroups.com, Malte Rogacki <gacki@...> wrote:
>
> At 13:43 Uhr +0000 08.10.2012, 7yash wrote:
>
> > What does not work:
> >
> > - All Bank LEDs as well as 1, 2, 3, 4 remain ON.
> > - Found stays ON
> > - LFO appears to always act upon the pitch
> > - Voice 5 seems dead. A swap of both SSM chips on that segment did not
> >change a thing
> > - Sub-osc does not seem to work
> > - Octave button does not seem to work
>
> This has probably something to do with data lines D01 to D03 which in turn
> points at IC31 as the most likely culprit.
>
> Please check if the the following also are affected:
>
> - VCA Mode
> - VCA Attenuator
> - VCO Waveform
>
> The dead voice 5 is unrelated; we can debug this at a later point.
>