• Hello MLAers! We've re-enabled auto-approval for accounts. If you are still waiting on account approval, please check this thread for more information.

Search results

  1. T

    Macintosh Classic Checkerboard screen

    I finally found the problem ! After cleaning the logic board, replacing the capacitors on both boards and two diodes on the analog board (as suggested by @bibilit on another thread), still nothing worked. My voltage was a little bit better, but still not enough. So I changed the CNY75GB...
  2. T

    Macintosh Classic Checkerboard screen

    Thank you all for your answers ! I washed the board with soap and water, but still no results... On the motherboard, I have 3.6V or 9V, but never 5V or 12V. Maybe  the analog board doesn't deliver enough voltage to make the motherboard works properly. I think i'll try to recap it. What could...
  3. T

    Macintosh Classic Checkerboard screen

    Hi everyone, I just bought a Macintosh Classic from 1991. When I turn it on, I have to wait for a few seconds/minutes to make it startup (probably due to the analog board capacitors), but then I have the checkerboard screen issue with a wobbly image. I washed the motherboard with solder flux...
Back
Top