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  1. C

    Macintosh SE blank screen, no P.O.S.T.

    Hello, I have recently purchased a Macintosh SE, which doesn't work. I have recapped both the logic board and analog board, and I have even replaced the RAM. When powering on, the fan starts up but there is no sound coming from the speaker and the screen is black. If I remove one RAM stick, the...
  2. C

    Macintosh SE weird screen behaviour

    Hello, I have recently bought a Macintosh SE, but when I started it, I saw a checkerboard pattern (with some noise). I then inspected all of the capacitors; they looked fine. However, after cleaning the 4 1MB RAM sticks, The screen was just blank. Oddly, if I only insert 2 sticks, the screen is...
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