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REPLYADDR kjambrose@gmail.com
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MSGID: <2509e702-73e9-4d71-aad4-765da7501fb9n@googlegroups.com> 35b918fe
REPLY: d03b6897
PID: SoupGate-Win32 v1.05
On Friday, May 13, 2022 at 4:52:29 AM UTC-7, phigan wrote:
> On 2022-05-08, Kenzo wrote:
> > Thanks, I ordered a zoomfloppy today.
> I'm really liking this thread.
>
> Just wanted to chime in that I too have a C64 that powers on with just a
> black screen. I tried changing out the VIC and that made no difference.
> Even tested the original as well as relacement VICs in a known good
> system, and they both work fine. The first suggestion I got was to try
> replacing the PLA, which I did, and also made no difference (also tested
> that in the known good system). I don't _see_ any issues with any of the
> caps on the board, but that doesn't necessarily mean there aren't any.
>
> I'd be very interested to hear what's causing yours to do the same if
> you should find out :).
>
> Jelly of your C= collection! Never had a 128.
One book I have says a bad 6502 can also cause a black screen. I guess the
moral of your story is you really have to troubleshoot electrically, just
replacing arbitrary chips is not guaranteed to solve the problem. I have the
documentation and
equipment so I will be doing that soon and will update progress here.
--- SoupGate-Win32 v1.05
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