Capacitor replacement assistance

Discussion in 'iMac' started by Nivalis, May 15, 2008.

  1. Nivalis macrumors newbie

    May 15, 2008
    Could someone do me a massive favour, assuming they have easy access to a emac logic board?
    i require alternative connection locations for the 13 1000uF and 1800uF capacitors.
    the 1800uF capacitor next to the video connector.
    the 1800uF capacitor next to the CDrom ide connector
    the 1000uF capacitor next to the above capacitor (to the right of it)
    on the bottom right of the board near the power supply for the ide devices.
    the cluster of 4 1000uF capacitors
    the clustoer of 6 1800uF capacitors

    i require an alternative solder point for both legs, for all 13 capacitors...
    i'm attempting to repair a botched 'dead' cap replacement attempt of a friend, and he managed to make such a mess of the original holes that i figure im going to need to do alot of patching up.

    The board DOES still work, the capacitors just need sorting out, which i cannot do as i cant be sure the installed capacitors are making connections to the right places at this time.

    Basically i need someone to go to the underside, touch the pin of the leg, and find me a new location i can patch to.

    Pictures or any replay at all would be a great help.

    -- edit --
    the board in question is a 1.25gb 'usb 2.0' logic board from a 2004 system.
  2. Nivalis thread starter macrumors newbie

    May 15, 2008
    Anyone? T_T

    Picture is of the caps i need alternate solder point locations for.
  3. Muncher macrumors 65816


    Apr 19, 2007
    No idea. I don't know anyone with an emac. This is a great chance for your friend to get a new computer!
  4. mrweasel macrumors newbie

    May 22, 2008
    I'm in the process of replacing those exact caps. I have a bare logic board in front of me...what exactly do you need? A pic of the bottom? LMK, I'd be glad to help
  5. Nivalis thread starter macrumors newbie

    May 15, 2008
    After some investigation, it seems the pcb for the logic board is multi layered, what i need is most likely beyond what is possible without in depth apple technical documents.

    But what it is exactly, is i would need to know, which layers each leg of all 13 capacitors connects to...

    Good luck with your replacement!, whatever you do, don't mess up any of the pads or you'll be in the mess i was in!
    Thankfully it isn't such an issue anymore as i was able to find a replacement logic board on ebay for really really cheap, and my emac is up and running again now.

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