Solving Audio Problems - HP Blade dc72 Reference Manual

Solving Display Problems (Continued)
Problem
Certain typed symbols do
not appear correct.

Solving Audio Problems

Solving Audio Problems
Problem
Sound cuts in and out.
Sound does not come
out of the speaker or
headphones.
Service Reference Guide, dc7700
Cause
The font you are using
does not support that
particular symbol.
Cause
Processor resources are
being used by other
applications.
Direct sound latency,
common in many media
player applications.
Software volume control
is turned down.
Audio is hidden in
Computer Setup.
The external speakers
are not turned on.
433612-001
Troubleshooting Without Diagnostics
Solution
Use the Character Map to locate the
and select the appropriate symbol.
Click Start > All Programs >
Accessories > System Tools >
Character Map. You can copy
the symbol from the Character Map
into a document.
Solution
Shut down all open
processor-intensive applications.
In Windows XP:
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.
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 >Audio.
Turn on the external speakers.
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