Sound And Speaker Problems; System Board Problems; No Sound From Speakers; No Sound From Headphones - Dell Precision 350 User Manual

Check the documentation for the device —
Ensure that the device is turned on —
Check the device cable connections —
missing pins.) Ensure that the device cable is firmly connected to the computer.
Test the device cable — Swap the device's cable with a cable that works properly.
Test the electrical outlet — Ensure that the electrical outlet is working by testing it with another device, such as a lamp.
Eliminate interference — Relocate any electrical appliances on the same circuit or operating near the computer that might cause
interference. Remove these other possible causes of interference:
Power extension cables
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Keyboard and mouse extension cables
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Too many devices on a power strip
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Multiple power strips connected to the same electrical outlet
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Check the option setting — See the device's documentation for the recommended settings. Then
Integrated Devices option settings. Ensure that the Serial Port setting (for a serial device) or the Parallel Port setting (for a parallel
device) matches the recommended settings.
Check the software documentation —
serial or parallel port settings. Ensure that the port settings match the recommended settings.
Run the Dell Diagnostics — If the tests do not complete,
Test the device — Swap the device with a comparable device that works properly.

Sound and Speaker Problems

Fill out the Diagnostics Checklist as you complete these checks.

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 —
speakers.
Ensure that the subwoofer and the speakers are turned on —
volume controls, adjust the volume, bass, or treble to eliminate distortion.
Adjust the Windows volume control —
is turned up and that the sound is not muted.
Disconnect headphones from the headphone connector —
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.
Eliminate possible interference —
Run the speaker diagnostics — Some speaker systems have self- diagnostics. See the speaker documentation for diagnostics instructions.
Reinstall the audio (sound) driver —
Check the device option setting —
system setup and reboot the computer.
Run the Dell diagnostics —
If the tests complete successfully, the controller is functioning properly.
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If the problem persists, or if the tests do not complete successfully,
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Check for interrupt request conflicts —

No sound from headphones

Check the headphone cable connection —
Adjust the Windows volume control —
is turned up and that the sound is not muted.
Disable digital mode — Your headphones do not work if the CD drive is operating in digital mode. To disable digital 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. Uncheck the Enable digital CD audio for this CD-ROM device box.

System Board Problems

Fill out the Diagnostics Checklist as you complete the following checks.
See the device's documentation for troubleshooting procedures.
Firmly press the device's power button.
Check the connector for bent or broken pins. (It is normal for most device cable connectors to have
If the problem occurs with particular software, see the software documentation for the recommended
contact Dell.
Ensure that the speakers are connected as shown on the setup diagram supplied with the
See the setup diagram supplied with the speakers. If your speakers have
Click or double-click the speaker icon in the lower-right corner of your screen. Ensure that the volume
Sound from the speakers is automatically disabled when headphones are
Turn off nearby fans, fluorescent lights, or halogen lamps to check for interference.
See "Drivers."
Enter system setup and ensure that Sound under the Integrated Devices option is set to On. Exit
See "Resolving Software and Hardware
Ensure that the headphone cable is securely inserted into the headphone connector.
Click or double-click the speaker icon in the lower-right corner of your screen. Ensure that the volume
enter system setup
contact Dell.
Incompatibilities."
and go to the