Dell Dimension 4500S, Руководство пользователя

Страница: 45 / 132

S o l v i n g Pr o b l e m s
45
If the screen is difficult to read
S
WAP THE POWER CABLES
— Swap the computer and monitor power
cables to determine if the power cable is defective.
T
EST THE VIDEO EXTENSION CABLE
(
IF USED
) — If you are using a
video extension cable and removing the cable solves the problem, the cable is
defective.
T EST ANOTHER MONITOR — If another monitor is available, connect it to
the computer.
C HECK THE DIAGNOSTIC LIGHTS — See page 48.
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 FACE A DIFFERENT DIRECTION
— Eliminate
sunlight glare, which can cause poor picture quality.
A DJUST THE W INDOWS® DISPLAY SETTINGS
1 Click the Start button, and then click Control Panel .
2
Click Appearance and Themes .
3 Click Display , and then click the Settings tab.
4
Try different settings for Screen resolution and Color quality.