Toshiba Satellite A100 (PSAAR) - Manual (Page 83)

User’s Manual 5-6
The Keyboard
Arrow mode
To turn on the Arrow mode, press Fn + F10. The Arrow mode indicator
lights. Now try cursor and page control using the keys shown in figure
above. Press Fn + F10 again to turn off the overlay.
Numeric mode
To turn on the Numeric mode, press Fn + F11. The Numeric mode indicator
lights. Now try numeric data entry using the keys in figure above. Press
Fn + F11 again to turn off the overlay.
The numeric keypad overlay
Temporarily using normal keyboard (overlay on)
While using the overlay, you can temporarily access the normal keyboard
without turning off the overlay:
1. Hold Fn and press any other key. All keys will operate as if the overlay
were off.
2. Type uppercase characters by holding Fn + Shift and pressing a
character key.
3. Release Fn to continue using the overlay.