Sony PCG-F430 Manual

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Using the Keyboard
 
Fn+  
(F12)
System Hibernation
Provides for the lowest level of power consumption. 
When you execute this command, the state of the system 
and state of the peripheral devices are written to the 
hard disk and the system power is turned off. To return 
the system to its original state, use the power button to 
turn on power. 
Fn+D
Video standby 
Turns off the LCD to save power. To turn the LCD back 
on, press any key.
Fn+F 
Change the
display size
Zooms the display size in or out when the display is set 
to a low resolution.
Fn+S
System Idle
Puts the system into System Idle mode, a power- 
management state. To return the system to the active 
state, press any key.
Some functions are not available until Windows launches.
Combinations/
Feature
Function