Question about Apple 15" PowerBook G4 Aluminum 1.67 GHz LCD Display (p/n 1002587) (661-3749 1002587) Mac Notebook
When i boot the computer. the apple power on sound happens, then the top 1/3 portion of the screen is black and the other 2/3's is grey. i tapped it a little. and a distorted image of the boot screen with the apple logo appeared briefly, then disappeared. i replaced the inverter board. everything is the same. could the LCD be shot?
The LCD image generation board is probably at fault. You can test this by squeezing on various parts of the screen, especially along the top and left (?) side. If, when you squeeze the edge, the image changes a lot, or the blank 1/3 comes on, then it's probably the LCD. Replacing the LCD is about the easiest thing to do on the Powerbook. This post is kind of old, so write back if you want more details.
Posted on Oct 03, 2008
Probably more like a Video cabling issue or a Screen assy getting bad connections.. Both have been seen here.
Posted on Jul 25, 2008
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Posted on Jan 02, 2017
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