68kMLA Classic Interface

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Macintosh SE/30 no Display

Posted by: bibilit on 2021-01-09 08:31:29 Logic board issue for sure, new caps, I have a chime but screen remains black.  Ls166 replaced, traces checked around but have not found so far.  Any idea ?  With another logic board, screen is ok.

Posted by: bibilit on 2021-01-30 05:35:01 Trying to figured out...better but not over.  After replacing UG8, screen lit up, and had a display (sort of) but UE8 was bad also, after replacing this also, the display improved, but was very dark.  I patched a trace, and now have this screen.  The more i use it the worse it is.  Sound is present and board is working (can boot from a hard drive) but after a while screen is really corrupted.  Any idea ? As I have been spending hours already looking for broken traces.

Posted by: bibilit on 2021-02-16 04:25:08 In the end my new LS 166 was faulty.  After removing and replacing the F 253s I get back to the LS and removed one from a damaged board, worked perfectly.

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