Question about Apple iBook G4 (Z0AZW13397068) PC Notebook

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Ibook g4 - screen will not appear

The screen on my ibook will not come up. The computer turns on and the keyboard is functional, but the screen is blank.


I have restarted the computer but this has not fixed the issue.

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Re: ibook g4 - screen will not appear

Try adjusting the monitor brightness (F2). If you have an extra monitor, try connecting the mini VGA to see if it outputs a signal extenally. The videocard is onboard the, that is one way to process of eliminate.

Also, if you start the machine after the apple chime, hold down the OPTION key. This will prompt you as to which bootable volume to boot from. What this does though, is gives the monitor a signal before the operating system loads.....this usually eliminates the issue being software, but very seldom is no display a software issue.....

Hope this helps.

Posted on Oct 22, 2007

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  2. Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
  3. Turn on the computer.
  4. Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
  5. Hold the keys down until the computer restarts and you hear the startup sound for the second time.
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Next you need to reset the PMU (power management unit). This will depend on the model of your iBook so follow the instructions on Apples page:

Hope this gets you going again

All the best

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