Toshiba Satellite P70-B - Manual (Page 50)

You can configure the function keys’ mode as "Special function mode" or
"Standard F1-F12 mode" by clicking Desktop Assist -> Tools & Utilities -
> System Settings -> Keyboard on the desktop.
"Special function mode" allows you to use special functions without
pressing the FN key.
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.
F7 FN + F7 Plays or pauses media playback.
F8 FN + F8 Moves media forward.
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 Turns the Airplane mode on or off.
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.
User's Manual 4-3