Dell Dimension 4600C - Manual (Page 41)

Solving Problems
41
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 43.
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 click Control Panel.
2 Click Appearance and Themes.
3 Click Display and click the Settings tab.
4 Try different settings for Screen resolution and Color quality.
R ESTORE THE RECOMMENDED SETTINGS — Restore the original resolution and refresh rate settings.
See the Tell Me How help file for instructions. To access help files, see page 25.