Troubleshooting 133
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 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 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.
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.
If only part of the display is readable
CONNECT AN EXTERNAL MONITOR

1

Shut down your computer and connect an external monitor to the

computer.

2

Turn on the computer and the monitor and adjust the monitor brightness

and contrast controls.

book.book Page 133 Wednesday, August 13, 2008 12:12 PM