Sound and Speaker Problems
Fill out the
Diagnostics Checklist
as you complete these checks.
No sound from speakers
No sound from headphones
CAUTION:
Before you begin any of the procedures in this section, follow the safety instructions in the
Product Information Guide
.
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 a sound 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.
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.
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 (see
System Setup
) and ensure that
Sound
under the
Integrated Devices
option is
set to
On
(if using the integrated audio solution) or
Off
(if using an expansion card solution). Exit system setup and restart your computer.
Check the Diagnostic Lights
—
See
Dell Diagnostics
.
Check for Software and Hardware Conflicts
—
See
Software and Hardware Incompatibilities
.
Check the headphone cable connection —
Ensure that the headphone cable is securely inserted into the headphone connector. See
About
Your Computer
.
Summary of Contents for Precision Workstation 690
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