Sony PCG-GRV550 - Manual (Page 81)

Using the Keyboard
81
Combinations/
Feature
Function
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 computer screen (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 computer screen (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 AV out
Toggles between the computer screen (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.
LCD
Only LCD LCD and external display
Only external display
LCD
Only LCD LCD and external display
Only external display