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iMac G4 17" 1.25 GHz Model M9168LLA PowerMac 6,1 introduced in 2003.

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iMac G4 20" strange yellow halo on the screen

wwhen I kept the computer in its original box everything was ok. After two years I open the box and start up the computer and now the screen presents this strange halo with two semicircles at the bottom.

Block Image

What can it be ?

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would you use some other type of upload? Here's how: Adding images to an existing question

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I have just bought an iMac G4 20” and it is exactly the same. I have dismantled the entire LDC and checked it all and it is certainly the LCD part it’s self. I thought it may have been the backlight but I can’t see anything that would point to backlight as it’s perfect with no tints or anything

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