Do iMac G4 PSUs have replaceable fuses in them?

Discussion in 'PowerPC Macs' started by AVR2, Feb 14, 2008.

  1. AVR2 macrumors 6502

    Jan 16, 2006
    Further to my thread asking for disassembly information for a 2002 iMac G4, I thought I'd ask - does the PSU have a replaceable fuse in it?

    The reason is that the machine I'm taking apart died after a power outage (despite being plugged into a surge protector) and while all I'm doing is removing the HD to try and recover the data for a friend, I figured that if there's anything obvious I can check while I've got it open, I might as well try and get it going again for them.
  2. warren705 macrumors newbie

    Jan 16, 2009


    I cant speak for the G4, but the G5 Imac has a 4amp surge protection 250v fuse soldered to the PCB.
    The G5 im working on is in a great condition, but that 4amp fuse got blown to bits in a power spike. I have a replacement on order, i will let you know the result, once i've soldered the new fuse in. Im almost certain this will solve my problem.

    I imagine that your G4 has the same 4amp fuse if its a UK model.

  3. velocityg4 macrumors 601


    Dec 19, 2004
    I've taken my iMac G4 2002 model apart a few times. Including removal of the PSU. I do not recall ever seeing a Fuse anyware on it.
  4. CubeHacker macrumors 65816


    Apr 22, 2003
    Search google for 'iMac G4 service manual'. That should show you if there is a fuse or not. There is also some troubleshooting tips inside.

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