HP Workstation z400

Solving audio problems
Table 11-6 Audio problems
Problem Cause Solution
Sound does not come out of
the speaker or headphones.
Software volume control
is turned down.
Double-click the Speaker icon on the taskbar
and use the volume slider to adjust the volume.
The external speakers
are not turned on.
Turn on the external speakers.
External speakers
plugged into the wrong
audio jack.
See your sound card documentation for proper
speaker connection.
Digital CD audio is
not enabled.
Enable digital CD audio:
1. From the Control Panel, select System.
2. On the Hardware tab, select the Device
Manager button.
3. Right-click the CD/DVD device and
select Properties.
4. On the Properties tab, select Enable
digital CD audio for this CD-ROM
device.
Headphones or devices
connected to the line-out
connector have muted
the internal speaker.
Turn on and use headphones or external
speakers, if connected, or disconnect
headphones or external speakers.
Volume is muted. 1. From the Control Panel, select Sound,
Speech and Audio Devices, and then
select Sounds and Audio Devices.
2. Deselect the Mute checkbox.
Computer is in Standby
mode.
Press the power button to resume from
Standby mode.
Noise or no sound comes
out of the speakers or
headphones.
1. If you are using digital speakers that have
a stereo jack and you want the system to
autoswitch to digital, use a stereo-to-mono
adapter to engage the auto sense feature,
or use multimedia device properties
to switch the audio signal from analog to
digital.
2. If the headphones have a mono jack, use
the multimedia device properties to switch
the system to analog out.
NOTE: If you set digital as the Output
Mode, the internal speaker and external
analog speakers no longer output audio
until you switch back to an auto sense or
analog mode.
If you set analog as the Output Mode,
external digital speakers do not function
until you change the output mode back to
an auto-sense or digital mode.
ENWW Troubleshooting scenarios and solutions 75