Dell Precision M70 - Manual (Page 85)

Sound and Speaker Problems
Fill out the Diagnostics Checklist as you complete these checks.
No sound from integrated speakers
No sound from external speakers
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 —
l See the scanner documentation for cable connection information.
l Ensure that the scanner cables are securely connected to the scanner and the computer.
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.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
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 to disable (mute) or re-enable the integrated speakers.
Reinstall the sound (audio) driver — See " Reinstalling Drivers and Utilities ."
For Windows 2000 only, ensure that digital audio for the CD drive is enabled —
1. Click the Start button, point to Settings, and then click Control Panel.
2. Double-click the System icon.
3. Click the Hardware tab.
4. Click Device Manager.
5. Double-click DVD/CD-ROM drives.
6. Double-click the name of the drive.
7. On the drive Properties screen, click the Properties tab.
8. Click the box near the bottom of the screen to enable digital audio for your CD or DVD drive.
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 — 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.