Dell Inspiron 640M - Manual (Page 98)

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Troubleshooting
C HECK THE SCANNER DOCUMENTATION — See the scanner documentation for setup and troubleshooting
information.
U NLOCK THE SCANNER — Ensure that your scanner is unlocked if it has a locking tab or button.
R ESTART THE COMPUTER AND TRY THE SCANNER AGAIN
C HECK THE CABLE CONNECTIONS —
• See the scanner documentation for cable connection information.
• Ensure that the scanner cables are securely connected to the scanner and the computer.
V ERIFY THAT THE SCANNER IS RECOGNIZED BY M ICROSOFT W INDOWS —
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 EINSTALL 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 integrated speakers
A DJUST THE W INDOWS 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.
A DJUST THE VOLUME USING KEYBOARD SHORTCUTS — Press <Fn><End> to disable (mute) or reenable
the integrated speakers.
R EINSTALL THE SOUND ( AUDIO ) DRIVER — See "Reinstalling Drivers and Utilities" on page 101.
No sound from external speakers
E NSURE 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.
A DJUST THE W INDOWS 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.
D ISCONNECT HEADPHONES FROM THE HEADPHONE CONNECTOR — Sound from the speakers is automatically
disabled when headphones are connected to the computer’s front-panel headphone connector.
T EST THE ELECTRICAL OUTLET — Ensure that the electrical outlet is working by testing it with another
device, such as a lamp.
E LIMINATE POSSIBLE INTERFERENCE — Turn off nearby fans, fluorescent lights, or halogen lamps to check
for interference.