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iBook g3 no video or backlight?

750 Views 7 Replies Latest reply: Apr 19, 2012 4:00 PM by Ronda Wilson RSS
Callum1500 Level 1 Level 1 (0 points)
Currently Being Moderated
Apr 18, 2012 9:02 AM

My IBook g3 700 MHz dual USB has no video or backlight, have tried booting in safe mode and for some reason can not find pmu reset button. Is it the logic board or could it be the power cable to the screen?

iBook
  • Ronda Wilson Level 8 Level 8 (40,555 points)
    Currently Being Moderated
    Apr 18, 2012 12:14 PM (in response to Callum1500)

    Hi, and welcome to Apple Support Communities.

     

    Only the first few models of iBook G3 (Dual USB) have a PMU reset button.

     

    Here is a link to the PMU instructions you need:

     

    http://support.apple.com/kb/HT1431?viewlocale=en_US&locale=en_US#faq6

     

    Good luck. (Hope that's all it takes.)

  • Ronda Wilson Level 8 Level 8 (40,555 points)
    Currently Being Moderated
    Apr 18, 2012 9:09 PM (in response to Callum1500)

    Is it the logic board or could it be the power cable to the screen?

     

    The short (smart-alecky) answer is "yes." It could be either.

     

    Once you've started up, try moving the display a little more closed and, if that doesn't work, a little more open. Sometimes the cable gets caught in the hinge, and this happens. If it isn't broken entirely, sometimes adjusting the angle of the display will get the display to come to life.

     

    If you shine a flashlight through the back of the display when the iBook is on, pointing it at the Apple logo from behind, can you see the display?

  • Ronda Wilson Level 8 Level 8 (40,555 points)
    Currently Being Moderated
    Apr 19, 2012 1:21 AM (in response to Callum1500)

    If you can afford to upgrade to a used MacBook or new MacBook Air or MacBook Pro, I would suggest doing that. Your money would be better spent by upgrading the computer rather than repairing it.

     

    If you are stuck with having to repair the iBook, then I would suggest contacting DT&T Computer Services in Fremont, California for an estimate.

     

    http://www.dttservice.com/ibook.html

     

    They have some of the most reasonable repair costs on iBooks I've found.

  • Ronda Wilson Level 8 Level 8 (40,555 points)
    Currently Being Moderated
    Apr 19, 2012 4:00 PM (in response to Callum1500)

    I think DT&T will ship internationally, but the shipping costs would be so much that it would even make it more to your advantage to upgrade to a newer Mac.

     

    You're welcome. Sorry I couldn't be of more help.

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