22 Aug
2010
22 Aug
'10
6:19 p.m.
In article <4C7160FF.4060009 at gmail.com>,
Mike Maginnis <mmaginnis at gmail.com> writes:
Can anyone suggest a starting point for tracking this
down?
I'm not familiar with the Apple III schematics. Does the motherboard
include video?
If so, then it sounds like everything's good but you have a bad video
section. I'd start looking at capacitors and if you have a high
bandwidth scope it might be instructive to look at the video out to
see if you're getting any sort of video timing at all (sync signals,
etc.).
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