128
Troubleshooting
• If you are using the optional
DVI-to-VGA
adapter, ensure that the adapter is
correctly attached to the graphics card and monitor.
• Ensure that the monitor cable is connected as shown on the setup diagram for your
computer.
• Remove any video extension cables and connect the monitor directly to the computer.
• Swap the computer and monitor power cables to determine if the monitor’s power
cable is defective.
• Check the connectors for bent or broken pins (it is normal for monitor cable
connectors to have missing pins).
C
HECK
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.
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 "Diagnostic Lights" on page 100.
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 positioned at least 60 centimeters
(2 feet) 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
—
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
.
Содержание Precision NT499
Страница 13: ...Contents 13 ...
Страница 14: ...14 Contents ...
Страница 38: ...38 About Your Computer ...
Страница 42: ...42 Advanced Features ...
Страница 70: ...70 Setting Up Your Computer ...
Страница 98: ...98 Clearing Passwords and CMOS Settings ...
Страница 112: ...112 Troubleshooting Tools ...
Страница 130: ...130 Troubleshooting ...
Страница 221: ...Adding and Replacing Parts 221 1 power cable 2 floppy drive cable 3 floppy drive connector FLOPPY 1 2 3 ...
Страница 270: ...270 Getting Help ...
Страница 290: ...290 Glossary ...