Sound And Speaker Problems; No Sound From Integrated Speakers; No Sound From External Speakers - Dell PP21L Owner's Manual

E R I F Y T H A T T H E S C A N N E R I S R E C O G N I Z E D B Y
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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.
R E I N S T A L L T H E S C A N N E R D R I V E R

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 integrated speakers

A D J U S T T H E W I N D O W S V O L U M E C O N T R O L
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.
A D J U S T T H E V O L U M E U S I N G K E Y B O A R D S H O R T C U T S
the integrated speakers.
R E I N S T A L L T H E S O U N D

No sound from external speakers

E N S U R E T H A T T H E S U B W O O F E R A N D T H E S P E A K E R S A R E T U R N E D O N
the speakers. If your speakers have volume controls, adjust the volume, bass, or treble to eliminate
distortion.
A D J U S T T H E W I N D O W S V O L U M E C O N T R O L
corner of your screen. Ensure that the volume is turned up and that the sound is not muted.
I S C O N N E C T H E A D P H O N E S F R O M T H E H E A D P H O N E C O N N E C T O R
D
disabled when headphones are connected to the computer's front-panel headphone connector.
T E S T T H E E L E C T R I C A L O U T L E T
device, such as a lamp.
E L I M I N A T E P O S S I B L E I N T E R F E R E N C E
for interference.
R E I N S T A L L T H E A U D I O D R I V E R
R U N T H E D E L L D I A G N O S T I C S
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.
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Solving Problems
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See the scanner documentation for instructions.
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Double-click the speaker icon in the lower-right corner of your
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See "Reinstalling Drivers and Utilities" on page 75.
( A U D I O ) D R I V E R —
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Ensure that the electrical outlet is working by testing it with another
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Turn off nearby fans, fluorescent lights, or halogen lamps to check
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See "Reinstalling Drivers and Utilities" on page 75.
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See "Dell Diagnostics" on page 57.
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I C R O S O F T I N D O W S
W
Press <Fn><End> to disable (mute) or re-enable
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Click or double-click the speaker icon in the lower-right
Sound from the speakers is automatically
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See the setup diagram supplied with