Video And Monitor Problems; If The Screen Is Blank; If The Screen Is Difficult To Read - Dell WHL Owner's Manual

Video and Monitor Problems

CAUTION:
Before you begin any of the procedures in this section, follow the safety instructions
located in the Product Information Guide.

If the screen is blank

NOTE:
See the monitor documentation for troubleshooting procedures.
C H E C K T H E M O N I T O R C A B L E C O N N E C T I O N
• If you have the optional second PCI-Express graphics card, ensure that the monitor cable is connected
to the correct card.
• If you have the optional DVI adapter, ensure that it is correctly attached to the graphics card.
• Ensure that the monitor cable is connected as shown on the setup diagram for your computer.
• If you are using a extension cable and removing the cable solves the problem, the cable is defective.
• Swap the computer and monitor power cables to determine if the power cable is defective.
• Check the connector for bent or broken pins. (It is normal for monitor cable connectors to have missing
pins.)
C H E C K T H E M O N I T O R P O W E R L I G H T
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 E S T T H E E L E C T R I C A L O U T L E T
device, such as a lamp.
H E C K T H E D I A G N O S T I C L I G H T S
C

If the screen is difficult to read

H E C K T H E M O N I T O R S E T T I N G S
C
contrast and brightness, demagnetizing (degaussing) the monitor, and running the monitor self-test.
M O V E T H E S U B W O O F E R A W A Y F R O M T H E M O N I T O R
ensure that the subwoofer is at least 60 cm (2 ft) away from the monitor.
M O V E T H E M O N I T O R A W A Y F R O M E X T E R N A L P O W E R S O U R C E S
lamps, and other electrical devices can cause the screen image to appear "shaky." Turn off nearby devices
to check for interference.
—
— If the power light is off, firmly press the button to ensure that
— Ensure that the electrical outlet is working by testing it with another
— See "Diagnostic Lights" on page 55.
— See the monitor documentation for instructions on adjusting the
— If your speaker system includes a subwoofer,
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— Fans, fluorescent lights, halogen
Solving Problems
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