Sony PCG-F250 Manual

Fn+ 

 (ESC)

System Suspend

Puts the system into System Suspend mode, a power 
management state. To return the system to the active 
state, press any key or press the power switch on your 
computer.

Fn+ 

 (F2)

Display power source 
status

Displays the power source status, as in the example 
below:

Fn+ 

 (F3)

Mute On/Off

Toggles the built-in speaker off and on. 

Fn+ 

 (F4)

Speaker volume

Adjusts the built-in speaker volume. 
To increase volume, press Fn+F4, then 

 or ➜. 

To decrease volume, press Fn+F4, then 

 or 

.

Fn+ 

 (F5) 

Brightness control

Adjusts the brightness of the LCD. 
To increase light intensity, press Fn+F5 and then   or 
➜. 
To decrease light intensity, press Fn+F5 and then   or 

.

Fn+ 

 (F6) 

Contrast control

Contrast control display.

*

Adjusts the contrast. To increase the contrast, press 
Fn+F6, then 

 or ➜. 

To decrease contrast, press Fn+F6, then 

 or 

.

Fn+ /

 

(F7)

Switch to the 
external monitor/LCD

Toggles through the LCD, external display (connected 
to the 

 Monitor connector) and both LCD and 

external display.

Fn+F8

Not available on this model.

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 the originals state, use the power 
switch to turn on power. 

➜➜

➜

➜

➜

➜

➜

➜

➜