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I turned on my toshiba laptop and the comp. comes on but there is total black on the screen

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Turn you laptop off. Connect an external monitor to your laptop. Turn the laptop on and see if you get any video signal on the external monitor (you have to use the right button combination e.g. Fn + one of the Function keys). If you get a signal on the external monitor the problem comes from the screen/backlight/inverter/cable of the laptop. If there is no signal, check the memory (if you have 2 memory modules use only one at a time, the other one could be defective or check your memory with another laptop or use some known good memory etc.). If the memory is ok then most probably the motherboard is defective (at least the integrated video card). Expensive to fix or to replace it. Have it checked by a professional.
Do you have any warranty on your laptop? See your dealer or the manufacturer’s representative first.

Posted on Oct 06, 2009

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PAeasop

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