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3
Key Combinations
CAUTION
Do not press the following key combinations while using the touch pad (external mouse) or other keys.
NOTE
Do not press the following key combinations until you log on to Windows and the hard disk drive indicator turns off.
Note, however, that the key combinations Fn + F1 , Fn + F2 and Fn + F3 are operable in the Setup
Utility.
The key combinations below may not work while some applications are running. Besides, the popup window may
not be displayed depending on the state of the application you are using (e.g., when [Command Prompt] screen
is set to “Full Screen”).
Key
Functions
LCD brightness
control ( down)
LCD brightness
control ( up)
Display change
Speaker on/off
switch
Volume control
( down)
Volume control
( up)
Function Descriptions
Pressing this key combination adjusts the brightness of LCD.
The brightness setting is stored in memory separately un-
der the condition the AC adaptor is connected and under
the condition the AC adaptor is not connected.
By pressing this key combination, you can select either
an external display, LCD or simultaneous. (
page 38
)
This combination does not work when [Command Prompt]
screen is set to “Full Screen”.
Pressing this key combination turns on/off audio from the
internal speaker and headphone jack.
Pressing this key combination adjusts the volume of the
internal speaker and headphone jack.
Popup Window
(Displayed after log-
ging on to Windows)
OFF
(MUTE)
ON
Fn + F1
Fn + F3
Fn + F4
Fn + F2
This key combination cannot be used to adjust the
volume of the warning beep or speakers connected
to the USB port.
NOTE
Fn + F5
Fn + F6
NOTE
Windows XP
When switching to a different user with the Fast User
Switching function, this key combination may not
work. In this case, log on with the administrator au-
thority again, not using the Fast User Switching func-
tion, and try the operation once more.
NOTE
Disabling the speaker will also disable the warn-
ing beep.
Speakers connected to the USB port cannot be
muted.
Do not press another key until the display desti-
nation has been completely switched.
Do not press this key combination while MPEG
files are playing.
CAUTION