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  1. #1
    G4 MDD Just quit working
    jokerman's Avatar
    Member Since
    Dec 11, 2007
    Location
    Bethlehem, Georgia
    Posts
    42
    Specs:
    MacBook Pro 2.16 C2D 10.4.10
    G4 MDD Just quit working
    Hello all,

    I think my problem may be power supply related but hope to be able to fix it cheaper. I recently installed Leopard on my MDD 1.25 and everything was fine. The next day it won't power on at all, nothing. Anything I can try before looking for a new power supply?

  2. #2
    G4 MDD Just quit working
    hughvane's Avatar
    Member Since
    May 18, 2008
    Location
    Banks Peninsula, New Zealand
    Posts
    3,295
    Specs:
    MacMini 2.4, 8 Gb, OS 10.10 and 10.6; MacBook 2.4, 4 Gb, OS 10.6.8
    Quote Originally Posted by jokerman View Post
    I think my problem may be power supply related but hope to be able to fix it cheaper. I recently installed Leopard on my MDD 1.25 and everything was fine. The next day it won't power on at all, nothing. Anything I can try before looking for a new power supply?
    Are you able to test the psu with a multimeter? Check power in and power out. Just be careful not to short anything in there. If the problem is the psu, shop around for an old working G4 to get its psu (and any other useful bits as well).

  3. #3
    G4 MDD Just quit working
    jokerman's Avatar
    Member Since
    Dec 11, 2007
    Location
    Bethlehem, Georgia
    Posts
    42
    Specs:
    MacBook Pro 2.16 C2D 10.4.10
    I will have to see if I can find a multimeter. Thanks for the advice. I hope I can get this thing back on it's feet.

  4. #4
    G4 MDD Just quit working
    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Location
    Nambucca Heads Australia
    Posts
    20,018
    Specs:
    iMac i5 2.7GHz, 16GB memory, OS 10.10.5
    Before investing in a new power supply, take the old unit out and dismantle. Have read where shorting to the case of the supply can be remedied with a simple solder job. Here is a link with photos jokerman:-

    http://www.gkgraphics.com/home/news/...ly/index.shtml

  5. #5
    G4 MDD Just quit working
    jokerman's Avatar
    Member Since
    Dec 11, 2007
    Location
    Bethlehem, Georgia
    Posts
    42
    Specs:
    MacBook Pro 2.16 C2D 10.4.10
    Thanks for the info harryb2448, I really appreciate it. I will have a look at it

  6. #6
    G4 MDD Just quit working
    jokerman's Avatar
    Member Since
    Dec 11, 2007
    Location
    Bethlehem, Georgia
    Posts
    42
    Specs:
    MacBook Pro 2.16 C2D 10.4.10
    hughvane,

    where do I check this PS with the multimeter?

  7. #7
    G4 MDD Just quit working
    hughvane's Avatar
    Member Since
    May 18, 2008
    Location
    Banks Peninsula, New Zealand
    Posts
    3,295
    Specs:
    MacMini 2.4, 8 Gb, OS 10.10 and 10.6; MacBook 2.4, 4 Gb, OS 10.6.8
    Quote Originally Posted by jokerman View Post
    hughvane,
    where do I check this PS with the multimeter?
    There's a more-or-less standard process for checking internal components ...
    Caution - you do this entirely at your own risk. If you are in any doubt as to your personal safety, or you are fearful of further damaging your computer, DO NOT attempt this. Take your G4 to an electrician to check the power flow, it doesn't need to be a Mac technician.

    The instructions are too lengthy to put here, so see attachment.
    Attached Files Attached Files

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