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My mac power book G4 sceen went black. It's plugged in and can't get it to turn on

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I had this issue on my old G4 white ibook.
It would turn on but not finish the boot because of bad contact of the graphic card (manufacturing default that occurs after a few years).
Cannot repair this since the graphic card is more expensive than the laptop.

Posted on Sep 25, 2009

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Try to reboot it

Posted on Sep 24, 2009

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Posted on Jan 02, 2017

darksidegds
  • 21 Answers

SOURCE: oevrall screen is black

First off where did you buy the replacement screen? Second did that screen also come with new ribbon cables?

If you bought the replacement online and just installed it without reading the instructions or it didn't come with any then you have the reason there.

If you did read the instructions and followed the steps correctly, then did the replacement come with new ribbon cables and connect lines is the next part, because the reason the first screen failed was not only the screens dynamics, but the constant open and closing, bending causes the cables to get worn in the same area and eventually it will tear or just break. And since you stated that the hinges had broke first that automatically says that the screen will fail due to not being able to function as it should. So with that said, and your answer was YES to the new cables, then final step is to retrace your steps when installing. Because you forgot to reconnect something to have the screen light up. If the white light on the screen doesn't light up you will see what you see now.

I suggest you to goto ifixit.com they have a step by step with images to install or replace parts on all Apple portables. Just follow their instructions correctly to find your PowerBook and then use their install steps.

-Luke

Posted on Feb 12, 2009

rulds2008
  • 3866 Answers

SOURCE: my g4 power book screen is very dark

This is door to a poor backlight meaning the backlight needs to be changed out. Going to cost like $125 for the part if you do not know how to do it then a tech will need to get involved so tack on your labor. I hope this helps as it did dozens of people with the same issue. please do leave ratings and feedback for your free answer today.

Posted on Apr 27, 2010

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