Sound And Speaker Problems; No Sound From Integrated Speakers; No Sound From External Speakers - Dell Inspiron 1521 Owner's Manual

Reinstall the scanner driver —
See the scanner documentation for instructions.
Sound and Speaker Problems
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 in the Product Information Guide.

No sound from integrated speakers

Adjust the Windows volume control —
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. Adjust the
volume, bass, or treble controls to eliminate distortion.
Adjust the volume using keyboard shortcuts —
Press <Fn><End> to disable (mute) or re-enable the integrated speakers.
Reinstall the sound (audio) driver —
See Reinstalling Drivers and Utilities.

No sound from external speakers

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 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 —
Turn off nearby fans, fluorescent lights, or halogen lamps to check for interference.
Reinstall the audio driver —
See Reinstalling Drivers and Utilities.
Run the Dell Diagnostics —
See Dell Diagnostics.