Asus PU500CA - Manual (Page 36)

36 Notebook PC User Manual
Crossed-out Touchpad (f9) : Toggles the built-in
touchpad LOCKED (disabled) and UNLOCKED (enabled).
Locking the touchpad will prevent you from accidentally
moving the pointer while typing and is best used with an
external pointing device such as a mouse. NOTE: Selected
models have an indicator between the touchpad buttons
will light when the touchpad is UNLOCKED (enabled) and
not light when the touchpad is LOCKED (disabled).
Crossed Speaker Icons (f10): Toggles the speakers on
and off (only in Windows OS)
Speaker Down Icon (f11):
Decreases the speaker volume (only in Windows OS)
Speaker Up Icon (f12):
Increases the speaker volume (only in Windows OS)
fn+A (on selected models):
Toggles the ambient light sensor on or off.
Power4Gear Hybrid (Space Bar): This key toggles
power savings between various power saving modes.
The power saving modes control many aspects of the
Notebook PC to maximize performance versus battery
time. Applying or removing the power adapter will
automatically switch the system between AC mode and
battery mode. You can see the current mode through the
on-screen display (OSD).