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Thread: G4 PowerBook Screen Problem

  1. #1
    Join Date
    Feb 2002
    Posts
    69

    Default G4 PowerBook Screen Problem

    Helping a friend with a 15" Aluminum PB (not sure what speed off hand). The back lighting on the screen doesn't seem to be working-i.e. if you look closely when you turn the computer on, you can see the image on the screen, but there is no light. An external monitor works fine. Things I've tried: zapped PRAM, reset PMU, starting from system DVD. No change.

    Before taking the computer apart, is there anything else I can try. If not, is it most likely the inverter board? What else could it be? If I need to order a part, I would like to do so before I take it apart (unless taking it apart would solve the problem without ordering any parts, e.g. a loose cable).

    Thanks!

  2. #2
    Join Date
    Jan 2002
    Location
    NW Montana
    Posts
    8,197

    Default

    I know squat about troubleshooting PowerBooks. Someone should.... hang in here. I assumed you searched Google.

  3. #3
    Join Date
    May 2001
    Location
    1hr N/W of LA LA Land
    Posts
    3,318

    Default

    I know some of the PBs had problems with the wiring to the screen especially if the hinges were broken which was a common problem. Don't remember the exact details, but I remember running across the info while researching stuff about my Pismo.

  4. #4
    Join Date
    Aug 2005
    Posts
    200

    Default

    Check out iFixit site. They have a lot of info on the powerbooks as well as a good step by step intstall instructions.
    Bob

  5. #5
    Join Date
    Aug 2000
    Location
    miami, fl, usa
    Posts
    545

    Default

    Another place to search is the Apple Support Discussions. My experience has been that if the problem has happened to you, someone else has experienced it and they have probably posted there. It can be frustrating to search out a solution though, Apple's servers are slow and the forums are not the most user friendly, but it is worth it when you find what you are looking for.
    living in a powder keg and giving off sparks

  6. #6
    Join Date
    Feb 2002
    Posts
    69

    Default

    Thanks to all. In the end I decided to go on my hunch that it was the inverter board and my hunch proved to be correct. With the new inverterboard everything was back to normal. It was an Aluminum, so the inverter board was actually in the sceen (iFixIt didn't provide instructions, though I don't know why since it was no more complicated that other repairs).

    Thanks again, I do appreciate all the gurus that take the time to give a hand.

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