LCD is black then changes to white.

I have an iBook g3 900mhz 14".
Symptoms:
1. Screen is black
2. If you leave it awhile it will start to turn white.
3. There are vertical lines and some spots while its turning from black to white.
Troubleshooting:
I have tried applying pressure to the GPU with no luck (shim trick) the laptop does boot up to an external monitor.
I have read that it could be the reed switch and the cables but i have not changed this yet.
Any tips will be helpful.

rey,
Well looking at that video that seems to be a loose connector on the back of the LCD. The back of the display will have to come off. You'll need a hex wrench and a black stick. I use a nylon propeller from the hobby shop. Did you email that guy?
Is $66 a good price to reball the GPU? Saw it on ebay
Is that that place in Ariz? I think that price is a reflow, ie the old solder is not cleaned off. I think his reballs are $80.
However I don't think that's your problem.
Your GPU is on the bottom of the logic board. Unless you can't get the video to normalize with pressure on the GPU then a reball is probably not going to help you.
If it's not this guys loose connection on the back of the LCD then it's a dead GPU. I have one that failed like that but it was an ATI 9200. I called it "spooky moving shadows".
I know about DT&T, which are the others you may suggest?
Just me but I'm not cheap.
Richard
Message was edited by: spudnuty

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Thanks for using Apple Support Communities.l
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LCD is black then changes to white.

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