Dell Dimension C521, Owner'S Manual

Page: 45 / 140

Solving Problems
45
The screen is difficult to read
C HECK 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.
T EST THE ELECTRICAL OUTLET — Ensure that the electrical outlet is working by testing it with another
device, such as a lamp.
C HECK THE DIAGNOSTIC LIGHTS — See "Power Light and Diagnostic Lights" on page 47.
C HECK 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.
M
OVE THE SUBWOOFER AWAY FROM THE MONITOR
— If your speaker system includes a subwoofer,
ensure that the subwoofer is at least 60 cm (2 ft) away from the monitor.
M
OVE 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.
R OTATE THE MONITOR TO ELIMINATE SUNLIGHT GLARE AND POSSIBLE INTERFERENCE
A DJUST THE W INDOWS DISPLAY SETTINGS —
1
Click Start , click Control Panel , and then click Appearance and Themes .
2
Click Display, then click the Settings tab.
3
Try different settings for Screen resolution and Color quality.