Sony PCG-F520 User Manual

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Starting Your Computer
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Starting Your Computer
Slide the LCD lock lever in the direction of the arrow, and lift the cover.
Press the power button on top of the computer until the green power 
indicator light turns on.
If necessary, adjust the brightness controls for the LCD display. To decrease 
the brightness, press Fn+F5 and then the down or left arrow key. To 
increase the brightness, press Fn+F5 and then the up or right arrow key. 
If you hold the power button in the On position for more than four seconds, the 
computer turns off.
LCD lock lever
Power
button
Power button
Power indicator