HP Compaq Presario CQ56-110US Notebook PC User Manual
Page 30
Function
Action key
Press and hold
f2
to decrease the screen brightness level incrementally.
Press and hold
f3
to increase the screen brightness level incrementally.
Press
f4
to switch the screen image among display devices connected to the computer. For example,
if a monitor is connected to the computer, pressing this key alternates the screen image from the
computer display to the monitor display to simultaneous display on both the computer and the monitor.
Most external monitors receive video information from the computer using the external VGA video
standard. The
f4
key can also alternate images among other devices that are receiving video
information from the computer.
Press
f5
to play the previous track of a CD.
Press
f6
to play, pause, or resume a track of an audio CD.
Press
f7
to stop the audio playback of a CD.
Press
f8
to play the next track of an audio CD.
Press and hold
f9
to decrease speaker volume incrementally.
Press and hold
f10
to increase speaker volume incrementally.
Press
f11
to mute or restore speaker sound.
Press
f12
to turn the wireless feature on or off.
NOTE:
This key does not establish a wireless connection. To establish a wireless connection, a
wireless network must also be set up.
Refer to (1) through (5) in
for information on using the application quick-launch keys.
22
Chapter 4 Pointing devices and keyboard