Sony PCG-FRV31 - Manual (Page 80)

Combinations and functions with the Fn key
Combinations/
Feature Function
Fn+F3 Toggles the built-in speakers off and on.
Fn+F4 Adjusts the built-in speaker volume.
To increase volume, press the Fn+F4 keys, plus the Up Arrow key or the Right Arrow key.
To decrease volume, press the Fn+F4 keys, plus the Down Arrow key or the Left Arrow key.
Fn+F5 Adjusts the brightness of the computer screen (LCD).
To increase the brightness, press the Fn+F5 keys, plus the Up Arrow key or the Right Arrow key.
To decrease the brightness, press the Fn+F5 keys, plus the Down Arrow key or the Left Arrow key.
Fn+F7 Toggles the display between the computer screen (LCD), a connected TV, and a connected external display, such as
a monitor or projector.
Select one display at a time when playing a DVD. Connect the cable before you turn on the computer; otherwise, Fn+F7 will
not work. You cannot use the Fn+F7 function to switch between the LCD and TV once a DVD is inserted into the optical
drive.
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.
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