Display - Sony Vajo VGC-LT20 Series User Manual

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Troubleshooting
Display
Why did my screen go blank?
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Your computer screen may go blank if the computer enters Sleep mode. If the computer is in Sleep mode, press the power
button on the computer or the sleep button on the wireless keyboard or the remote commander to bring the computer
back into Normal mode. See Using the Power Saving Mode (page 112) for more information.
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Make sure your computer is securely plugged into a power source and turned on. Make sure the power indicator shows
the power is on.
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The LCD backlight of your computer may have been turned off. Press the DISPLAY OFF button.
What should I do if my screen is dark?
Press the Fn+F6 keys to brighten your computer screen.