Toshiba P100/P105 - Manual (Page 233)

233 Hot Keys
Keyboard hot keys
5.375 x 8.375 ver 2.3.2
Keyboard hot keys
Fn + This hot key informs you when the Wireless
antenna on-off switch is in the off position. (No
message appears when the Wi-Fi antenna on-off
switch is in the on position.)
Fn +
[Spacebar]
This hot key switches screen or video modes.