Maintenance and Service Guide: HP ap5000 All-In-One Point of Sale System

Solving Audio Problems
If you encounter audio problems, see the common causes and solutions listed in the following table.
Table 4-6 Solving Audio Problems
Sound cuts in and out.
Cause Solution
Processor resources are being used by other open
applications.
Shut down all open processor-intensive applications.
Direct sound latency, common in many media player
applications.
In Windows XP only:
1. From the Control Panel, select Sounds and Audio
Devices.
2. On the Audio tab, select a device from the Sound
Playback list.
3. Click the Advanced button and select the Performance
tab.
4. Set the Hardware acceleration slider to None and the
Sample rate conversion quality slider to Good and
retest the audio.
5. Set the Hardware acceleration slider to Full and the
Sample rate conversion quality slider to Best and
retest the audio.
Sound does not come out of the speaker.
Cause Solution
Software volume control is turned down. 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.
Audio is disabled in Computer Setup. Enable the audio in Computer Setup: Advanced > HD
Audio.
The external speakers are not turned on. Turn on the external speakers.
The audio device may be connected to the wrong jack. Ensure that the device is connected to the correct jack on the
side I/O panel of the computer. The speaker jack is green;
the microphone jack is pink.
Volume is muted. 1. From the Control Panel program, click Sound, Speech
and Audio Devices, then click Sounds and Audio
Devices.
2. Click the Mute check box to remove the check mark
from the box.
Computer is in standby mode. 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.
28 Chapter 4 Troubleshooting