Acer Extensa 15 User Manual page 17

Icon Function
Display toggle
Display off
Touchpad toggle Turns the built-in touchpad on and off.
Speaker toggle
Volume down
Volume up
Scr LK Scroll Lock
Description
Switches display output between the
display screen, external monitor (if
connected) and both.
Turns the display screen backlight off to
save power. Press any key to return.
Turns the speakers on and off.
Decreases the sound volume.
Increases the sound volume.
Turns Scroll Lock on or off.
Using the keyboard - 17