Question about Apple 15" PowerBook G4 Aluminum 1.67 GHz LCD Display (p/n 1002587) (661-3749 1002587) Mac Notebook
This doesn't sound good, but there are a few things to do. First, if you replaced the screen yourself and feel comfortable opening up the case again, do so and check the connections. There might be something lose that's making the problem. I'm guessing not though. It sounds more like a logic board problem. You can try a few options though.
Reset the PRAM
Leave the battery out and the unit unplugged for a day and press the power button about 10 times to discharge the laptop. (sometimes does something to settings)
Hook it up to an external monitor to see if you have an image. This will tell you whether it's an internal thing or not. If you don't get an image on an external monitor, you probably have a bad logic board. Sorry I can't help more.
Posted on Oct 05, 2008
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Posted on Jan 02, 2017
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