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Special
function mode
Standard F1-
F12 mode
Function
F1 FN + F1 Launches the help file supplied with
the software.
F2 FN + F2 Decreases the computer's display
panel brightness in individual steps.
F3 FN + F3 Increases the computer's display
panel brightness in individual steps.
F4 FN + F4 Changes the active display device.
To use a simultaneous mode, you
must set the resolution of the internal
display panel to match the resolution
of the external display device.
F5 FN + F5 Enables or disables the Touch Pad.
F6 FN + F6 Moves media backward (seven
seconds for videos and live TV, one
music track or one DVD chapter at a
time).
F7 FN + F7 Plays or pauses media playback.
F8 FN + F8 Moves media forward (30 seconds
for videos and live TV, one music
track or one DVD chapter).
F9 FN + F9 Decreases the computer's volume.
F10 FN + F10 Increases the computer's volume.
F11 FN + F11 Turns the sound on or off.
F12 FN + F12 Switches the active wireless devices.
FN + 1 FN + 1 Reduces the icon size on the desktop
or the font sizes within one of the
supported application windows.
FN + 2 FN + 2 Enlarges the icon size on the desktop
or the font sizes within one of the
supported application windows.
FN + Space FN + Space Changes the display resolution.
FN + FN +
Turns the keyboard backlight on or
off. This function is supported with
some models.
Satellite U840/U800 Series
User's Manual 3-4