Dell OptiPlex 330 User Manual page 129

• 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).
H E C K T H E M O N I T O R P O W E R L I G H T
C
• 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 E S T T H E E L E C T R I C A L O U T L E T
testing it with another 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
C H E C K T H E M O N I T O R S E T T I N G S
on adjusting the contrast and brightness, demagnetizing (degaussing) the monitor,
and running the monitor self-test.
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
M
includes a subwoofer, ensure that the subwoofer is positioned at least 60 centimeters
(2 feet) 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
lights, halogen lamps, and other electrical devices can cause the screen image to
appear shaky. Turn off nearby devices to check for interference.
R O T A T E T H E M O N I T O R T O E L I M I N A T E S U N L I G H T G L A R E A N D P O S S I B L E
I N T E R F E R E N C E
D J U S T T H E I N D O W S D I S P L A Y S E T T I N G S
A W
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.
Windows Vista:
1 Start
Click
Display Settings.
2
Adjust Resolution and Colors settings, as needed.
3D image quality is poor
C H E C K T H E G R A P H I C S C A R D P O W E R C A B L E C O N N E C T I O N
—
— Ensure that the electrical outlet is working by
— See "Diagnostic Lights" on page 106.
— See the monitor documentation for instructions
→ Control Panel→ Hardware and Sound→ Personalization→
— If your speaker system
—
— Ensure that the power
Troubleshooting
— Fans, fluorescent
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