Sony PCG-GRX670K Manual

  

 If you switch user identities during a computing session, the Fn+F7 key functionality (if available on your computer) will

be interrupted. To switch to an external display or monitor, see 

 for more information. 

Fn + 

(F3) 

Mute On/Off 

Toggles the built-in speaker off and on. 

Fn + 

(F4) 

Speaker volume 

Adjusts the built-in speaker volume. An on-screen display appears notifying you when a change

occurs. 

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 + 

/

 (F7)

Switch to the external monitor/LCD 

Toggles between the LCD, a connected external display, and both the LCD and

external display. 

Select one display at a time to playback DVDs. Connect the cable before you turn on the computer, otherwise Fn+F7 will not
work. 

Fn + 

only/

(F8)

Control A/V OUT 

Toggles between LCD-only, external-only, and dual LCD/TV display modes. 

Select one display at a time to playback DVDs. Connect the cable before you turn on the computer, otherwise Fn+F8 will not
work. You cannot use the Fn+F8 function to switch between LCD and TV once a DVD is inserted into the optical drive. 

Fn + 

(F12)

Hibernate 

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. 
Fn + Esc
Standby 

Puts the system into Standby mode, a power management state. To return the system to normal

operating mode, press any key or press the power button. 
Fn + E 

Ejects the CD.