> On Atari boards I'd be looking for the "Bip"adjustments on the logic
> board D/A output section.
I agree, this would be a cinch on a Tempest or a Star Wars...
> I can't recall if Sega used anything similar, but it probably wouldn't
> hurt to check the voltages on the output driver supplies. The op-amps
> normally have +/- supplies that should be within a few percent of each
> other (5% ish).
That's not gonna be fun to check... honestly, how is anybody supposed to
troubleshoot a caged boardset like this?!
Does anyone else have any ideas? There's gotta be some other G80
experts out there...
Cheers,
-Lewis
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Received on Tue Jul 7 01:00:51 2009
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