Powerbook G4 screen partial wash-out
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Author:  levinson [ Mon Sep 21, 2009 4:35 pm ]
Post subject:  Powerbook G4 screen partial wash-out

I have a 17" Powerbook G4, 2/3 of the screen is having a wash-out problem. The top third is OK, but the bottom starts changing contrast from almost OK to quite bright/contrasty going from left to right. I've googled the problem but haven't found anything similar, most problems are either dots, stripes, or whole-screen problems. I did find few that mentioned the bottom section going off, the cause was described as probably a pinched display cable, but these did not have the changing-across-the-screen that I am seeing. This computer does have a partially-broken left hinge (far left bit). Moving the screen up and down, pinching various parts of the screen, pressing here and there, makes no difference.

Any thoughts?

Author:  justin-pbmedic [ Tue Sep 22, 2009 11:53 am ]
Post subject:  Re: Powerbook G4 screen partial wash-out

Generally any type of 1/3 issue with a screen is going to be the LCD itself. Just how they are manufactured they tend to go defective in thirds. Unfortunately for a Titanium, you are looking at a hefty repair. Replacing the entire display will cost you over $600.

Author:  levinson [ Tue Sep 22, 2009 2:46 pm ]
Post subject:  Re: Powerbook G4 screen partial wash-out

Thanks for the reply. I was hoping it would be a pinched cable that I could "unpinch" but I guess not. What actually goes bad, corrosion in the contacts, overheated resistors, bad voodoo?

$600 is kind of unecomomical, isn't it, for a laptop of this vintage? Rats.


Author:  justin-pbmedic [ Thu Oct 01, 2009 10:32 am ]
Post subject:  Re: Powerbook G4 screen partial wash-out

Yea, it isn't very economical for these older machines, but unfortunately Apple only sells the replacement as the entire display. You can try to find just a replacement LCD, but it is the hardest repair ever for an Apple laptop as Apple didn't make those displays to be taken apart.

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