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  1. Z

    How to easily probe Mac Classic board?

    Hey, working to troubleshoot my simasimac Classic after doing a recap of the logic and analog boards and trying to repair damaged traces. It's coming to the point where I think I need to start measuring voltages on the board and trying to hook up a scope - it's become a nightmare of lifted pads...
  2. Z

    Mac Classic -- horizontal bars after recap, -12V problem

    Hey there, definitely a newbie to this. I had a Mac classic with a good bit of electrolyte damage. No sound, couldn't boot, but came on with picture and blinking disk -- it threw a bus error when trying to boot to the rom disk. Looking at the board, it was clear that the electrolyte did some...
  3. Z

    C10 on the Mac Classic and electrolyte damage

    Hey there, doing my first Mac repair with a classic that had pretty bad electrolyte leakage, eating away the legs of capacitor C10 on the logic board, among other things. Bomarc schematics say 3.3uF/16V -- should this be a tantalum cap? It looks like there's a polarized marking on the...
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