> Oh, one other thing, IIRC there's a signal marked "AC" on the power harness
> of the G80 cage (coming from the transformer assembly). I think it
> ultimately connected up to the reset circuit as sort of a "power good"
> signal... Anyway, you can tie it to 5VDC to satisfy the hardware and run
> the whole system off of a PC switching power supply for debugging if you
> want it out on the bench without extracting the whole power setup too.
> That's what I did for development on the G80 Multigame.
Hmmm, actually this one has a switching PS hacked in place of the linear
PS. I wonder if that's suspect? Are the positive and negative drive
voltages derived from the +5 line or are they coming off the +/- 12 of
the PS?
-Lewis
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Received on Wed Jul 8 15:31:53 2009
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