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d_a_parker's latest activity

  • D
    d_a_parker replied to the thread Mac Plus CRT voltage issue.
    After some extensive testing, I found that it's definitely a broken solder joint somewhere on the analog board. When I lightly press the...
  • D
    d_a_parker replied to the thread Mac Plus CRT voltage issue.
    I reflowed J1 but that didn't fix it. Also, ChatGPT says that the cathode is expected to be positive since the bias is negative, and...
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    d_a_parker posted the thread Mac Plus CRT voltage issue in Compact Mac.
    Hi All, I recently acquired a non-functioning Mac Plus 1Mb in good physical condition. It boots and gets the chime on startup, all of...
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