Dell Precision M4300 (Mid 2007) - Manual (Page 92)

90
Troubleshooting
Sound and Speaker Problems
Fill out the Diagnostics Checklist (see "Diagnostics Checklist" on page 143) 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
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.
R EINSTALL THE SOUND ( AUDIO ) DRIVER — See "Reinstalling Drivers and Utilities" on page 100.
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.
R EINSTALL THE AUDIO DRIVER — See "Reinstalling Drivers and Utilities" on page 100 .
R UN THE D ELL D IAGNOSTICS — See "Dell Diagnostics" on page 73.
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.
No sound from headphones
C HECK THE HEADPHONE CABLE CONNECTION — Ensure that the headphone cable is securely inserted into the
headphone connector.
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.
Touch Pad or Mouse Problems
C HECK THE TOUCH PAD SETTINGS —
1 Click Start→ Control Panel→ Printers and Other Hardware→ Mouse.
2 Try adjusting the settings.