No Sound From Headphones; Touch Pad Or Mouse Problems; Video And Display Problems - Dell Latitude D630 XFR User Manual

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 HEADPHONE CONNECTOR — Sound from the speakers is automatically
disabled when headphones are connected to the computer's headphone 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 — See "
RUN THE DELL DIAGNOSTICS — See "
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.

11.16.3 No Sound From Headphones

CHECK THE HEADPHONE CABLE CONNECTION — Ensure that the headphone cable is securely inserted into the
headphone connector.
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.
11.17

Touch Pad or Mouse Problems

CHECK THE TOUCH PAD SETTINGS —
1. Click the Start button, click Control Panel, and then click Printers and Other Hardware.
2. Click Mouse.
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.
TO VERIFY THAT THE PROBLEM IS WITH THE MOUSE, CHECK THE TOUCH PAD —
1. Shut down the computer.
2. Disconnect the mouse.
3. Turn on the computer.
4. At the Windows desktop, use the touch pad to move the cursor around, select an icon, and open it.
If the touch pad operates correctly, the mouse may be defective.
CHECK THE SYSTEM SETUP PROGRAM SETTINGS — Verify that the system setup program lists the correct device for
the pointing device option. (The computer automatically recognizes a USB mouse without making any setting
adjustments.)
TEST THE MOUSE CONTROLLER — To test the mouse controller (which affects pointer movement) and the operation of
the touch pad or mouse buttons, run the Mouse test in the Pointing Devices test group in the Dell Diagnostics (see "
Diagnostics").
REINSTALL THE TOUCH PAD DRIVER — See "
11.18

Video and Display Problems

Fill out the Diagnostics Checklist (see "
CAUTION: Before you begin any of the procedures in this section, follow the safety
instructions in the
R einstalling Drivers and Utilities".
2 7 4 H
D ell Diagnostics".
2 7 5 H
R einstalling Drivers and Utilities".
2 7 7 H
D iagnostics Checklist") as you complete these checks.
2 7 8 H
S afety Information section of this manual.
2 7 9 H
D ell
2 7 6 H