This is the function of the notebook keyboard, using the Fn+ function key can turn off some special features, Toshiba's notebook hidden digital keypad on/off button is fn+f11: The left letter key into a number.
fn Function Key Encyclopedia--Toshiba article
Fn+esc: Mute/restore Volume
FN+F1: Clear the screen
FN+F2: Switching power management topics
FN+F3: Set to wait state
FN+F4: Set to Hibernate
FN+F5: Toggle Monitor
FN+F6: Reduce screen brightness
FN+F7: Increase screen brightness
Fn+f8: Open the wireless network card signal
FN+F9: Enable or disable the built-in mouse touch panel
FN+F10: Turn the letter key on the right into a direction
FN+F11: Turns the letter key on the left to a number
FN+F12: equal to SCROLL LOCK key function
Fn+home: Equals Pause key function
Fn+end: Equals Break key function
Fn+1: Lower Volume
Fn+2: Increase the volume
fn+ space bar: Toggle screen resolution to 800x600
In addition, Toshiba also provides a Fn-esse program for users to define their own FN key combinations, you can create their own shortcuts.