HP HB4 User Manual page 80

audio
Symptom
No sound is produced.
74
user's guide
Problem
Volume is muted.
Volume is turned down.
Speakers are turned off.
Speaker cables are not
properly connected.
PC is in standby mode.
A passive speaker system is
being used.
Headphones are
plugged in.
Solution
Press the Mute button on the keyboard to see if the mute
feature is turned on.
Or
1
Click Start, and then click Control Panel.
2
Click Sounds, Speech, and Audio Devices, if it is
present, and then double-click Sounds and Audio
Devices.
3
Click the Mute check box to remove the check mark
from the box.
Use the keyboard controls to increase the volume.
Check whether speakers are turned on.
Turn off your PC, and reconnect the speakers.
Press the Standby button (select models only) or press the
Esc key on the keyboard to resume from standby mode.
Replace the speaker system with an active speaker system.
Active speakers have a power cord and On button, and
connect to the Audio Out (green) connector on the PC.
Unplug the headphones.