3
Key Combinations
Do not press the following key combinations repeatedly in (quick) succession. Also, do not press different key
combinations quickly one after another.
Do not press the following key combinations while using the touch pad (mouse) or other keys.
CAUTION
NOTE
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, internal LCD or simultaneous.
(
page 35
)
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 speakers and headphone jack.
Pressing this key combination adjusts the volume of the
internal speakers 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
Disabling the speakers will also disable the warn-
ing beep.
Speakers connected to the USB port cannot be
muted.
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”).
Do not press another key until the display destina-
tion has been completely switched.
Do not press this key combination in the following
conditions.
• While MPEG files are playing.
CAUTION
Windows XP
When switching to a different user with the Fast User
Switching function, this key combination may not work.
In this case, log off all users, and try the operation once
more. If the problem persists, restart the computer.
The combination does not work when the computer
is in the Dualview mode.
NOTE
NOTE