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Trouble with Performa 6400 (2 logic boards - one no internal sound, the other no video ...)
Posted by: Apfelklassik.de on 2023-02-22 04:45:12 Folks, got one ... uhh ... 2 issues. I have 2 Performa 6400/200 logic boards - both recapped. Number 1: is working, except for the "internal" sound, front headphone is fine. Number 2: is working, including internal sound, but does not generate video output. The chassis cannot be the issue as the combination of both is working well. Does anyone have a hint where to look for one or the other problem? Thanks!
Posted by: Phipli on 2023-02-22 05:17:04 Do the serial ports work? They also use the -5V rail.
Posted by: Apfelklassik.de on 2023-02-22 05:19:56 @Phipli talking about board #1, no internal sound, I assume? ADB a clear "yes" - let me check the other with a printer ...
Posted by: Phipli on 2023-02-22 05:23:26 @Phipli talking about board #1, no internal sound, I assume? ADB a clear "yes" - let me check the other with a printer ... Yes sorry, the one with no sound 🙂 ADB doesn't use -5V so would be fine. Not much does.
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