Powerbook Problem 2

Discussion in 'PowerPC Macs' started by OneKiwi, Feb 16, 2008.

  1. OneKiwi macrumors newbie

    Feb 12, 2008
    I had what I thought was a dead PB G4 500mhz and would you believe it I was taking it apart preparing for maybe a new logicboard and just plain old tinkering
    I think I reconnected something and now it works ...BUT the screen freezes with multi coloured lines vert + horiz at different times


    It comes over like a wave of blurr freezes etc after a while normal but for not enough time to do anything

    Have you got any idea whats going on, and how to solve it in the easiest, least troublesome way?
  2. OneKiwi thread starter macrumors newbie

    Feb 12, 2008
    Ive kept reading and now connected my PB to my LCD TV and the screen there is normal, no lines and no freezing, so its not the logic board right??
    Thinking its in the cables.
    So im gonna open her up and check the connections again.. where are the screen connectors located?
    Could it be something else?
  3. Tosser macrumors 68030

    Jan 15, 2008
    I'm thinking cables too. But not the connections (plugs). I think it might be the flat flexible "wire" going to the screen is broken from flexing for so long.
  4. OneKiwi thread starter macrumors newbie

    Feb 12, 2008
    Do you know if I can change it ?
    Fix it or make it better?
  5. Tosser macrumors 68030

    Jan 15, 2008
  6. Tosser macrumors 68030

    Jan 15, 2008
  7. Jestered macrumors 6502

    Oct 13, 2005
    Austin, Texas
    If you are going to replace the video cable, you cannot just get a "universal" cable from an electronics shop. You have to get the cable for that computer/model.

    I would first check the connections and check for bent or cracked cables first.

    If you decide to replace the video cable.... it is not easy on that computer. If you have not done it before, it will be difficult. You will have to literally tear the computer completely apart. You will also have to pry the display housing apart. The display housing on that computer is pretty much glued to the display. You will have to be very careful and pry it apart. Then you will have to replace the video cable and glue the casing back together. You have to be careful about getting glue on the front of the display too.

    It can be done if you are patient and prepared for a difficult repair.


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