Dell D630 Manual

Troubleshooting121
CHECK THE STATUS IN THE DELL MOBILE BROADBAND CARD UTILITY—Click 
the  icon on the Windows desktop to launch the utility. Check the status in 
the main window:
•
No card detected – Restart the computer and launch the utility 
again. 
•
Radio Off – Ensure the Mobile Broadband card is enabled by viewing 
the status in the Dell Mobile Broadband Card Utility. If the card is 
disabled, enable the Mobile Broadband card by clicking the 
Tu r n  R a d i o  
On
 button in the main screen of the...

122Troubleshooting
ENSURE THAT THE CARD IS RECOGNIZED BY WINDOWS—Double-click the 
Safely Remove Hardware icon in the Windows taskbar. Ensure that the card is 
listed.
IF YOU HAVE PROBLEMS WITH A DELL-PROVIDED CARD—Contact Dell (see 
Obtaining Assistance on page 193).
IF YOU HAVE PROBLEMS WITH A CARD NOT PROVIDED BY DELL—Contact the 
card manufacturer.
Power Problems
Fill out the Diagnostics Checklist (see Diagnostics Checklist on page 198) as 
you complete these checks.
 CAUTION: Before you begin any of...

Troubleshooting123
CHECK THE BATTERY TEMPERATURE—If the battery temperature is below 0° C 
(32° F), the computer will not start up.
TEST THE ELECTRICAL OUTLET—Ensure that the electrical outlet is working by 
testing it with another device, such as a lamp.
CHECK THE AC ADAPTER—Check the AC adapter cable connections. If the AC 
adapter has a light, ensure that the light is on.
CONNECT THE COMPUTER DIRECTLY TO AN ELECTRICAL OUTLET—Bypass power 
protection devices, power strips, and the extension cable to...

124Troubleshooting
AC Power Loss While the Computer Is Docked
If a computer loses AC power while docked to the Dell D/Dock or Dell D/Port, 
the computer immediately goes into low-performance mode.
Printer Problems
Fill out the Diagnostics Checklist (see Diagnostics Checklist on page 198) 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.
 
NOTE: If you need technical assistance for your...

Troubleshooting125
 CAUTION: Before you begin any of the procedures in this section, follow the 
safety instructions in the 
Product Information Guide.
 
NOTE: If you need technical assistance for your scanner, contact the scanner’s 
manufacturer.
C
HECK THE SCANNER DOCUMENTATION—See the scanner documentation for 
setup and troubleshooting information.
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.
C
HECK THE...

126Troubleshooting
REINSTALL THE SOUND (AUDIO) DRIVER—See Reinstalling Drivers and 
Utilities on page 140.
No sound from external speakers
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...

Troubleshooting127
2Click Mouse.
3Try 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—
1Shut down the computer.
2Disconnect the mouse.
3Turn on the computer. 
4At the Windows desktop, use the touch pad to move the cursor around,...

128Troubleshooting
If the display is blank
 NOTE: If you are using a program that requires a higher resolution than your 
computer supports, it is recommended that you attach an external monitor to your 
computer.
C
HECK THE BATTERY—If you are using a battery to power your computer, the 
battery charge may be depleted. Connect the computer to an electrical outlet 
using the AC adapter, and turn on the computer.
TEST THE ELECTRICAL OUTLET—Ensure that the electrical outlet is working by 
testing it with...

Troubleshooting129
RUN THE VIDEO DIAGNOSTICS TESTS—If no error message appears and you still 
have a display problem, but the display is not completely blank, run the 
Vi d e o 
device group in the Dell Diagnostics. If the problem persists, contact Dell (see 
Obtaining Assistance on page 193).
SEE ERROR MESSAGES—If an error message appears, see Error Messages on 
page 110.
If only part of the display is readable
CONNECT AN EXTERNAL MONITOR—
1Shut down your computer and connect an external monitor to the...

130Troubleshooting