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Q: iBook G3 White Screen

My iBook G3 Clamshell (Indigo, 366 MHZ, 512MB RAM) is only showing a white screen. It works normally if it is plugged into a TV with a display cable. The display's backlight can be turned on and off via F1 and F2. What is causing this? The iBook only moved for the first time in a week (it was laying flat on a desk, right side up) when I leaned it up against a sofa arm. It wasn't moved violently, nor hit, nor dropped.

iBook, Mac OS X (10.3.x), Indigo Clamshell 366 MHz 512MB RAM

Posted on Sep 6, 2014 6:06 PM

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Q: iBook G3 White Screen

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  • by K Shaffer,

    K Shaffer K Shaffer Sep 6, 2014 8:35 PM in response to BnBlanchette
    Level 6 (14,345 points)
    Desktops
    Sep 6, 2014 8:35 PM in response to BnBlanchette

    Could be the cable to the display from the logic board is worn; or weak.

    There are a few other parts in support of that function which can go bad.

     

    A data cable or wire could be at fault, as that would not affect the power

    to the display from the logic board or other connection from the body of

    the computer; so the unit may need to have a professional inspection.

     

    As an older unit, finding willing repair & diagnostic help may be difficult now.

    Some shops specialize in a wider range of Apple portables and so may be

    able to get parts & have skilled technicians who have experience with those.

     

     

    If none are available locally, then one may have to look further away and

    use a parcel service or a post office flat-rate padded box to ship to service.

    Depending on where you are located (country/region) options may vary.

     

    •Resetting PowerBook and iBook Power Management Unit (PMU)

     

    A power management unit reset may be an exercise to perform

    yet it may not change the symptom if the parts have failed.

     

    Sorry to not have so many ideas of a helpful nature to fix your ibook.

    Good luck & happy computing!

  • by bund,

    bund bund Sep 8, 2014 9:15 AM in response to BnBlanchette
    Level 3 (809 points)
    Sep 8, 2014 9:15 AM in response to BnBlanchette

    When facing display problems, a PRAM reset might be useful.