Rep: 13
1
1
All of a sudden my PowerBook screen when black. I tried booting up and hear the tone, but nothing comes up on the screen. Does any one have any ideas?
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Rep: 537
6
3
You want to try and reset the SMC and the PRAM first. This is done by first shutting down, removing all peripherals and the battery then holding the power button for 5+ seconds (SMC rest). Afterwords boot holding the command, option, p, r button combo and hold them till you hear the startup chime happen 3 times.
If this does not help test an external monitor to see if that gets a picture.
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+ Ralph
On the SMC reset, also disconnect the AC power supply.
how do you test using external monitor? If using my imac, do I connect using usb to usb?
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