Troubleshooting Without Diagnostics

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Solving Display Problems (Continued)

 

 

 

 

 

 

 

 

 

 

Problem

Cause

Solution

 

 

 

 

 

 

 

 

 

Certain typed symbols do

The font you are using

Use the Character Map to locate the

 

 

not appear correct.

does not support that

and select the appropriate symbol.

 

 

 

particular symbol.

Click Start > All Programs >

 

 

 

 

Accessories > System Tools >

 

 

 

 

Character Map. You can copy

 

 

 

 

the symbol from the Character Map

 

 

 

 

into a document.

 

 

 

 

 

Solving Audio Problems

 

 

 

 

 

 

 

 

 

 

 

Solving Audio Problems

 

 

 

 

 

 

 

 

 

 

Problem

Cause

Solution

 

 

 

 

 

 

 

 

Sound cuts in and out.

Processor resources are

Shut down all open

 

 

 

 

being used by other

processor-intensive applications.

 

 

 

applications.

 

 

 

 

 

 

 

 

 

 

 

 

Direct sound latency,

In Windows XP:

 

 

 

common in many media

1.

From the Control Panel,

 

 

 

player applications.

 

 

 

 

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

Software volume control

Double-click the Speaker icon on

 

 

 

out of the speaker or

is turned down.

the taskbar, then make sure that

 

 

headphones.

 

Mute is not selected and use the

 

 

 

 

volume slider to adjust the volume.

 

 

 

 

 

 

 

 

 

Audio is hidden in

Enable the audio in Computer

 

 

 

Computer Setup.

Setup: Security > Device

 

 

 

 

Security >Audio.

 

 

 

 

 

 

 

 

 

The external speakers

Turn on the external speakers.

 

 

 

are not turned on.

 

 

 

 

 

 

 

 

 

 

 

Service Reference Guide, dc7700

433612-001

D–17