Dell Precision M20 - Manual (Page 100)

No sound from external speakers
No sound from headphones
Touch Pad or Mouse Problems
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 playing 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.
Disconnect headphones from the audio connector — Sound from the speakers is automatically disabled when headphones are connected
to the computer's front-panel audio 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 — Turn off nearby fans, fluorescent lights, or halogen lamps to check for interference.
Reinstall the audio driver
Run the Dell Diagnostics
Check the headphone cable connection — Ensure that the headphone cable is securely inserted into the audio connectors
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.
Check the touch pad settings —
Windows XP
1. Click the Start button, click Control Panel, and then click Printers and Other Hardware.
2. Click Mouse.
3. Try adjusting the settings.
Windows 2000
1. Click the Start button, point to Settings, and then click Control Panel.
2. Double-click the Mouse icon.
3. Try adjusting the settings.
Check the mouse cable — Shut down the computer. Disconnect the mouse cable, check it for damage, and firmly reconnect the cable.
If you are using a mouse extension cable, disconnect it and connect the mouse directly to the computer.