114 Troubleshooting
• Swap the computer and monitor power cables to determine if the monitor’s power
cable is defective.
• Check the connectors for bent or broken pins (it is normal for monitor cable
connectors to have missing pins).
CHECK THE MONITOR POWER LIGHT —
• If the power light is lit or blinking, the monitor has power.
• If the power light is off, firmly press the button to ensure that the monitor is turned on.
• If the power light is blinking, press a key on the keyboard or move the mouse to
resume normal operation.
TEST THE ELECTRICAL OUTLET —Ensure that the electrical outlet is working by
testing it with another device, such as a lamp.
CHECK THE BEEP CODES —See "Beep Codes" on page 90.
CHECK THE MONITOR SETTINGS —See the monitor documentation for instructions
on adjusting the contrast and brightness, demagnetizing (degaussing) the monitor,
and running the monitor self-test.
MOVE THE SUBWOOFER AWAY FROM THE MONITOR —If your speaker system
includes a subwoofer, ensure that the subwoofer is positioned at least 60 centimeters
(2 feet) away from the monitor.
MOVE THE MONITOR AWAY FROM EXTERNAL POWER SOURCES —Fans, fluorescent
lights, halogen lamps, and other electrical devices can cause the screen image to
appear shaky. Turn off nearby devices to check for interference.
ROTATE THE MONITOR TO ELIMINATE SUNLIGHT GLARE AND POSSIBLE
INTERFERENCE
ADJUST THE WINDOWS DISPLAY SETTINGS —
Windows XP:
1
Click
Start
→
Control Panel
→
Appearance and Themes
.
2
Click the area you want to change or click the
Display
icon.
3
Try different settings for
Color quality
and
Screen resolution
.
Windows Vista:
1
Click
Start
→
Control Panel
→
Hardware and Sound
→
Personalization
→
Display Settings
.
2
Adjust
Resolution
and
Colors settings,
as needed.
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