HP Compaq 6000 Pro MT Maintenance And Service Manual page 225

Table D-6 Solving Audio Problems (continued)
Sound does not come out of the speaker or headphones.
Cause
Software volume control is turned down or muted.
Audio is hidden in Computer Setup.
The external speakers are not turned on.
The audio device may be connected to the wrong jack.
External speakers plugged into the wrong audio jack on a
recently installed sound card.
Digital CD audio is not enabled.
Headphones or devices connected to the line-out connector
mute the internal speaker.
Computer is in standby mode.
Internal speaker is disabled in Computer Setup.
One or more audio solutions are installed in the system.
Sound from headphones is not clear or muffled.
Cause
Headphones are plugged into the rear audio output connector.
The rear audio output connector is for powered audio devices
and is not designed for headphone use.
Computer appears to be locked up while recording audio.
Cause
The hard disk may be full.
Solution
Double-click the Speaker icon on the taskbar, then make sure
that Mute is not selected and use the volume slider to adjust
the volume.
Enable the audio in Computer Setup: Security >
Device Security > System Audio.
Turn on the external speakers.
Ensure that the device is connected to the correct jack on the
computer. The speakers should be plugged into the rear line-
out jack and the headphones should be plugged into the front
headphone jack.
See the sound card documentation for proper speaker
connection.
Enable digital CD audio. In the Device Manager, right-click on
the CD/DVD device and select Properties. Make sure Enable
digital CD audio for this CD-ROM device is checked.
Turn on and use headphones or external speakers, if
connected, or disconnect headphones or external speakers.
Press the power button to resume from standby mode.
CAUTION: When attempting to resume from standby mode,
do not hold down the power button for more than four seconds.
Otherwise, the computer will shut down and you will lose any
unsaved data.
Enable the internal speaker in Computer Setup. Select
Advanced > Device Options > Internal Speaker.
Ensure that your application is set to use the correct audio
device.
Solution
Plug the headphones into the headphone connector on the
front of the computer.
Solution
Before recording, make sure there is enough free space on the
hard disk. You can also try recording the audio file in a
compressed format.
Solving Audio Problems 213