need help fixing a macintosh G3 AIO power supply

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  • Fleetwood
    New Member
    • Sep 2020
    • 2
    • United States

    #1

    need help fixing a macintosh G3 AIO power supply

    I have a power supply for a power macintosh G3 AIO that chirps when i try to power it on. I've located the coil that the sound is coming from. the numbers on it are:
    6170TMZ027A
    NY9815
    everything on the board looks fine... no swollen caps or anything as far as i can tell
    any ideas how to fix it?
  • stj
    Great Sage 齊天大聖
    • Dec 2009
    • 31161
    • Albion

    #2
    Re: need help fixing a macintosh G3 AIO power supply

    check the output diodes,
    chirping is often caused by the output being overloaded

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    • Bobert57
      New Member
      • Feb 2023
      • 1
      • USA

      #3
      Re: need help fixing a macintosh G3 AIO power supply

      Originally posted by Fleetwood
      I have a power supply for a power macintosh G3 AIO that chirps when i try to power it on. I've located the coil that the sound is coming from. the numbers on it are:
      6170TMZ027A
      NY9815
      everything on the board looks fine... no swollen caps or anything as far as i can tell
      any ideas how to fix it?
      Did you get your G3 power supply working? I have the same issues.

      Comment

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