Sound And Speaker Problems; No Sound From External Speakers - Dell Latitude D410 User Manual

Unlock the scanner — Ensure that your scanner is unlocked if it has a locking tab or button.
Restart the computer and try the scanner again
Check the cable connections —
See the scanner documentation for cable connection information.
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Ensure that the scanner cables are securely connected to the scanner and the computer.
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Verify that the scanner is recognized by Microsoft Windows —
1. Click the Start button, click Control Panel, and then click Printers and Other Hardware.
2. Click Scanners and Cameras.
If your scanner is listed, Windows recognizes the scanner.
Reinstall the scanner driver — See the scanner documentation for instructions.
Sound and Speaker Problems
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
No sound from the integrated speaker
Adjust the Windows volume control —
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 —
Reinstall the sound (audio) driver —

No sound from external 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.
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 —
volume 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 —
Reinstall the audio driver.
Double-click the speaker icon in the lower-right corner of your screen. Ensure that the volume is
Press <Fn><End> to disable (mute) or reenable the integrated speaker.
See "Reinstalling Drivers and
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
Sound from the speakers is automatically disabled when headphones are
Turn off nearby fans, fluorescent lights, or halogen lamps to check for interference.
Utilities."