Sony PCG-K17 VAIO User Manual page 102

Combinations and functions with the Fn key
Feature Function
Fn+F2 Toggles the built-in speakers off and on.
Fn+F3 Decreases the volume when the Fn key is pressed, and the F3 key is tapped.
Fn+F4 Increases the volume when the Fn key is pressed, and the F4 key is tapped.
Fn+F5 Decreases the screen brightness when then the Fn key is pressed, and the F5 key is tapped.
Fn+F6 Increases the screen brightness when then the Fn key is pressed, and the F6 key is tapped.
Fn+F7 Toggles the display between the computer screen (LCD), a connected external device, such as a monitor or
projector, and both the LCD and external device.
Select one display at a time when playing a DVD. Connect the cable before you turn on the computer; otherwise, Fn+F7
may not work.
Fn+F12 Puts the system into Hibernate mode, a power management state. To return the system to normal
operating mode, press the power button. Hibernate mode consumes the lowest level of power.
Combinations/
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