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Lights
Light On Off
Num Lock
The number keys in the numeric
keypad are active.
The alphanumeric character
keys in the keypad area are
active.
Caps Lock The letters appear in uppercase as
you type. The Shift key lowers the
case of typed letters when Caps
Lock is on.
Letters appear in lower case
as you type (unless you
hold down the Shift key).
Scroll Lock The screen scrolls differently.
(Exactly how it scrolls depends on
the specific application. It has no
effect in many applications.)
Information moves across
the display normally.
Combinations and Functions with the Fn Key
Combinations/
Feature Function
Fn+ (ESC)
Standby
Puts the system into Standby mode, a power-management state. To
return the system to the active state, press any key or press the power
button on your computer.
Fn+ (F3)
Mute
Toggles the built-in speaker off and on.
Fn+ (F4)
Speaker volume
Adjusts the built-in speaker volume. To increase volume, press Fn+F4.
Fn+Shift+
(F4)
Speaker volume
Adjusts the built-in speaker volume. To decrease volume, press
Fn+Shift+F4.
Fn+ (F5)
Brightness control
Adjusts the brightness of the LCD.
To increase light intensity, press Fn+F5.
Fn+Shift+
(F5)
Brightness control
Adjusts the brightness of the LCD.
To decrease light intensity, press Fn+Shift+F5.