Acer 2420 manual Using the Keyboard, Lock Keys and embedded numeric keypad, Lock Key Description

Using the Keyboard

The keyboard has full-sized keys and an embedded keypad, separate cursor keys, two Windows keys and twelve function keys.

Lock Keys and embedded numeric keypad

The keyboard has three lock keys which you can toggle on and off.

Aspire 3620:

TravelMate 2420:

Lock Key	Description
Caps Lock	When Caps Lock is on, all alphabetic characters typed
	are in uppercase.
Num lock	When Num Lock is on, the embedded keypad is in
<Fn>+<F11>	numeric mode. The keys function as a calculator
	(complete with the arithmetic operators +, -, *, and /).
	Use this mode when you need to do a lot of numeric
	data entry. A better solution would be to connect an
	external keypad.
Scroll lock	When Scroll Lock is on, the screen moves one line up
<Fn>+<F12>	or down when you press the up or down arrow keys
	respectively. Scroll Lock does not work with some
	applications.

The embedded numeric keypad functions like a desktop numeric keypad. It is indicated by small characters located on the upper right corner of the keycaps. To simplify the keyboard legend, cursor-control key symbols are not printed on the keys.

Desired Access	Num Lock On	Num Lock Off
Number keys on embedded	Type numbers in a normal
keypad	manner.
Cursor-control keys on	Hold <Shift> while using	Hold <Fn> while using
embedded keypad	cursor-control keys.	cursor-control keys.

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