Toshiba Satellite C640 - Manual (Page 104)

User’s Manual 5-6
The Keyboard
The numeric keypad overlay
Temporarily using normal keyboard (overlay on)
While using the overlay, you can temporarily access the normal keyboard
functions 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.
Temporarily using overlay (overlay off)
While using the normal keyboard, you can temporarily use the keypad
overlay without turning it on:
1. Press and hold down FN.
2. Pressing FN turns on the most recently used overlay. If in the Numeric
mode, you can use the overlay for numeric entry. If in the Arrow mode,
you can use the overlay for cursor and page control.
3. Release FN to return to normal keyboard operation.