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--- In chromapolaris@yahoogroups.com, "Paul D. DeRocco" <pderocco@...> wrote:
>
> > From: Robert Weigel
> >
> > While we're at it... at least for 300477 that I have here...
> > they switch the pin numbers of the 4053 section that does the
> > main /alt out switching and the sync switch. The other
> > section appears right. Very irritating given how much
> > trouble I've had with this.
>
> I think there may have been two versions of the board. They switched the
> sections to move the output summing bus away from some noisy line, probably
> NOISEGEN.
>
> --
>
> Ciao, Paul D. DeRocco
> Paul mailto:pderocco@...
>