Solving Problems 63
The screen is difficult to read
CHECK THE MONITOR POWER LIGHT —
• If the power light is off, firmly press the button to ensure that the monitor is turned on.
• If the power light is lit or blinking, the monitor has power.
• 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 DIAGNOSTIC LIGHTS —See "Diagnostic Lights" on page65.
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 at least 60cm (2 ft) 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 —
1
Click
Start
, click
Control Panel
, and then click
Appearance and Themes
.
2
Click
Display
, then click the
Settings
tab.
3
Adjust
Screen resolution
and
Color quality
settings, as needed
.
DIM_book.book Page 63 Monday, October 15, 2007 11:04 AM