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No sound from speakers, No sound from headphones – Dell Precision 370 User Manual

Page 123

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Fill out the

Diagnostics Checklist

as you complete these checks.

CAUTION:

Before you begin any of the procedures in this section, follow the safety instructions located in

the Product Information Guide.

No sound from speakers

NOTE:

The volume control in some MP3 players overrides the Windows volume setting. If you have been listening to

MP3 songs, ensure that you did not turn the player volume down or off.

Check the speaker cable connections —

Ensure that the speakers are connected as shown on the setup

diagram supplied with the speakers. If you purchased an audio card, ensure that the speakers are connected to

the card.

Ensure that the subwoofer and the speakers are turned on —

See the setup diagram supplied with the

speakers. If your speakers have volume controls, adjust the volume, bass, or treble to eliminate distortion.

Adjust the Windows volume control —

Click or double-click the speaker icon in the lower-right corner of

your screen. Ensure that the volume is turned up and that the sound is not muted.

Disconnect headphones from the headphone connector —

Sound from the speakers is automatically

disabled when headphones are connected to the computer's front-panel headphone connector.

Test the electrical outlet —

Ensure that the electrical outlet is working by testing it with another device,

such as a lamp.

Enable digital mode —

Your speakers do not work if the CD drive is operating in analog mode.

Windows XP

1. Click the Start button, click Control Panel, and then click Sounds, Speech, and Audio Devices.

2. Click Sounds and Audio Devices.

3. Click the Hardware tab.

4. Double-click the name of your CD drive.

5. Click the Properties tab

6. Check the Enable digital CD audio for this CD-ROM device box.

Windows 2000

1. Click the Start button, point to Settings

Control Panel, and then click Sounds and Multimedia.

2. Click the Hardware tab.

3. Click the name of your CD drive and click Properties.

4. Click the Properties tab.

5. Check the Enable digital CD audio for this CD-ROM device box.

Eliminate possible interference —

Turn off nearby fans, fluorescent lights, or halogen lamps to check for

interference.

Run the speaker diagnostics

Reinstall the audio driver —

See

Reinstalling Drivers and Utilities

.

Check the device option setting

Enter system setup

and ensure that Sound under the Integrated

Devices option is set to On. Exit system setup and restart your computer.

Run the

Dell Diagnostics

Check for Software and Hardware Conflicts

No sound from headphones

Check the headphone cable connection —

Ensure that the headphone cable is securely inserted into the

headphone connector. See "

Your Desktop Computer

" or "

Your Mini-Tower Computer

."