4-6 Dell Dimension XPS D
xxx
Systems Reference and Troubleshooting Guide
Verify the power source by plugging in an appliance that you know works.
Plug the monitor directly into an electrical o utlet, bypassing any power protection
devices.
If the power indicator is not lit, check f or a ba d power cable by turning off the sys-
tem and swapping the monitor and computer power cables.
Perform the monitor self-test as described in the documentation that came with
the monitor.
Refer to “Video Cards” in Chapter 6 for further troubleshooting information.
If the picture quality is poor, perform these checks:
Rotate the monitor to face a different direction. If the picture changes, refer to
“Environmental Factors” found earlier in this chapter. Monitors are particularly
susceptible to EMI.
If the orientation of the computer affects the display geometry, check the docu-
mentation that came with the monitor for information on adjustments.
Degauss the monitor as described in the documentation that came with the
monitor.
Turn off the computer system, and examine the video-interface cable connector
for bent, pushed in, broken, or missing pins. Remo v e an y video e xtens ion ca bles ,
reseat the monitor’s video connector, and securely tighten the captive screws.
Then reboot the computer system.
NOTE: Some missing pins may be normal for your monitor; check the documen-
tation that came with the monitor.
Perform the monitor self-test as described in the documentation that came with
the monitor.
If another monitor or computer is available, try it.
Move the monitor to another room.
Reinstall the video drivers as described in the documentation that ca me wi th th e
video card.
Refer to “Video Cards” in Chapter 6 for further troubleshooting information.
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Perform the following checks for speaker problems:
Ensure the speakers are properly connected as shown on the
Getting Started
sheet or as described in the documentation that came with the speakers.
Verify that the speakers and/or subwoofer are turned on if they have a power
control.
Turn up the volume knob on the speakers.
If the audio is distorted, make sure that the volume is not turned to its maximum
setting. Turn off the monitor to check for interference.