HP Compaq Presario,Presario R4000 Maintenance And Service Manual page 23

Top Components, Compaq Presario R4000 (Continued)
Item Component
3 Wireless button (select
models only)
4 Power/standby button
5 Volume down button
6 Volume up button
7 Volume mute button
8 Display switch
9 Num lock light
Maintenance and Service Guide
Table 1-8
Function
Turns the wireless functionality on or off,
but does not create a wireless connection.
✎
To establish a wireless connection,
a wireless network must already be
set up.
When the notebook is
■ Off, press to turn on the notebook.
■ On, briefly press to initiate hibernation.
■ In standby, briefly press to resume from
standby.
■ In hibernation, briefly press to restore
from hibernation.
✎
If the system has stopped
responding and Microsoft Windows
shutdown procedures cannot be
used, press and hold for at least
4 seconds to turn off the notebook.
Decreases system volume.
Increases system volume.
Mutes or restores volume.
If the notebook is closed while on, initiates
standby.
On: Num lock is on or the embedded
numeric keypad is enabled.
Product Description
1–19