Toshiba PSK3AU-00Q014 Owner's Manual page 122

The Keyboard
Brightness Up: Pressing FN + F7 increases the computer's display panel
brightness in individual steps.
Wireless: Pressing FN + F8 switches the active wireless devices.
If no wireless communication device is installed, no dialog box will appear.
Touch Pad: Pressing FN + F9 enables or disables the Touch Pad.
Zoom: Pressing FN + Space changes the display resolution.
TOSHIBA Zooming Utility (reduce): Pressing FN + 1 reduces the icon
size on the desktop or the font sizes within one of the supported application
windows.
TOSHIBA Zooming Utility (enlarge): Pressing FN + 2 enlarges the icon
size on the desktop or the font sizes within one of the supported application
windows.
Volume Down: Pressing FN + 3 decreases the volume of the media
played by supported applications.
Volume Up: Pressing FN + 4 increases the volume of the media played by
supported applications.
User's Manual 5-4