Question about Apple PowerBook G4 Mac Notebook

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Powerbook G4 (1 GHz), 15" LCD glitchy

My powerbook is 4 years old (out of warranty) and recently when it is moved, often the screen goes blank. The machine is still running, but I have to restart to get the screen up again. When I don't travel with the machine, it's fine, but when I move it, it gets glitchy. Any suggestions? It happened months ago and Apple ran me through diagnostics and had me remove some software. It didn't reoccur for months, but also I didn't take it anywhere. It certainly seems like hardware, not software. Thanks much.


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  • cornbread09 Dec 15, 2007

    I have the same glitchy LCD problem. I have changed the ribbon cable and still get the same results.



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Maybe turn on the PowerBook and plug the laptop into a TV or Projector and when it come up on the other screen, move it around a bit, when the screen goes white, if the other screen is still on then you know it's the connections between the motherboard and screen. Also try pushing the hinge in a litte bit and see whether the screen works when it's say half-open.

Posted on Dec 23, 2007

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It could well be the ribbon cable between the screen and motherboard is knackered. Depends how brave you are at dismanteling computers, if you search on powerbook parts you may be able to find a company that scraps computers who could sell you the cable if it is a separate item otherwise it will be an expensive Apple repair!


Posted on Nov 18, 2007


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