Sony VPCZ2390X Manual

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Using Your VAIO Computer >
Using the Keyboard
Using the Keyboard
Your keyboard has additional keys that perform model-specific tasks.
Combinations and Functions with the Fn Key
Some keyboard functions can be used only after the operating system is finished launching.
Combination/Feature
Function
Fn + 
 (F1): touch pad operation
Disables and enables the touch pad.
Fn + % (F2): muting
Turns on and off the built-in speakers or the headphones.
Fn + 2 (F3/F4): volume control
Changes the built-in speaker volume level.
To increase the volume, keep pressing the Fn+F4 keys or press the Fn+F4 keys and then the 
M or , key.
To decrease the volume, keep pressing the Fn+F3 keys or press the Fn+F3 keys and then the 
m or < key.
Fn + 8 (F5/F6): brightness control
Changes the LCD brightness of your computer screen.
To increase lighting intensity, keep pressing the Fn+F6 keys or press the Fn+F6 keys and then 
the 
M or , key.
To decrease lighting intensity, keep pressing the Fn+F5 keys or press the Fn+F5 keys and then 
the 
m or < key.