•If you have not already done so, plug the monitor directly into an electrical outlet, bypassing any power protection devices, power strips, and extension cables to verify that the monitor turns on.
•If the power indicator is not lit, check for a bad power cable by turning off the sys- tem and swapping the monitor and computer power cables.
•Perform the monitor
If the picture quality is poor, perform these checks:
•Rotate the monitor to face a different direction. If the picture changes, see
“Environmental Factors” found earlier in this chapter. Monitors are particularly susceptible to EMI, which causes colors to fade and blend.
•If the orientation of the computer affects the display geometry, check the docu- mentation that came with the monitor for information on adjustments.
•Degauss (demagnetize) the monitor as described in the documentation that came with the monitor.
•If you changed the resolution or refresh rate settings of the monitor, return the monitor to its manufacturer’s recommended settings (see the monitor documentation).
•Turn off the computer system, and examine the
NOTE: Some missing pins may be normal for your monitor; check the documen- tation that came with the monitor.
•Remove any video extension cables, reseat the monitor’s
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Perform the monitor
If another monitor or computer is available, try swapping monitors between systems.
Move the computer and the monitor to another room.
If you completed the basic monitor checks and suspect a problem with the video, per- form the following checks:
•Click the Start button, point to Settings, and click Control Panel.
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