Acer TRAVELMATE 7730 Service Manual page 23

Lock keys
The keyboard has three lock keys which you can toggle on and off.
Lock key
Caps Lock
Scroll Lock <Fn> + <F12>
Num Lock
Chapter 1: System specifications
Caps lock
When Caps Lock is on, all alphabetic characters typed are in uppercase.
When Scroll Lock is on, the screen moves one line up or down when you
press the up or down arrow keys respectively. Scroll Lock does not work
with some applications.
When Num Lock is on, the numeric keypad is in 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.
Scroll lock Num lock
Description
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