Dell Vostro 220 Service Manual - Page 32

Turn on the computer and the monitor and adjust the monitor brightness, and contrast controls.

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Page 32 highlights

C H E C K T H E D I A G N O S T I C L I G H T S - See "Power Lights" on page 9. C H E C K T H E M O N I T O R S E T T I N G S - See the monitor documentation for instructions on adjusting the 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 - If your speaker system 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 - 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. ROTATE THE MONITOR TO ELIMINATE SUNLIGHT GLARE AND POSSIBLE INTERFERENCE ADJUST THE WINDOWS 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. Windows Vista: 1 Click Start → Control Panel→ Hardware and Sound→ Personalization→ 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 power cable for the graphics card(s) is correctly attached to the card. C H E C K T H E M O N I T O R S E T T I N G S - See the monitor documentation for instructions on adjusting the contrast and brightness, demagnetizing (degaussing) the monitor, and running the monitor self-test. Only part of the display is readable CONNECT AN EXTERNAL MONITOR - 1 Shut down your computer and connect an external monitor to the computer. 2 Turn on the computer and the monitor and adjust the monitor brightness and contrast controls. If the external monitor works, the computer display or video controller may be 32 Troubleshooting

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32
Troubleshooting
C
HECK
THE
DIAGNOSTIC
LIGHTS
—
See "Power Lights" on page 9.
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
.
Windows Vista
:
1
Click
Start
→
Control Panel
→
Hardware and Sound
→
Personalization
→
Display Settings
.
2
Adjust
Resolution
and
Colors settings,
as needed.
3D image quality is poor
C
HECK
THE
GRAPHICS
CARD
POWER
CABLE
CONNECTION
—
Ensure that the power
cable for the graphics card(s) is correctly attached to the card.
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.
Only part of the display is readable
C
ONNECT
AN
EXTERNAL
MONITOR
—
1
Shut down your computer and connect an external monitor to the
computer.
2
Turn on the computer and the monitor and adjust the monitor brightness
and contrast controls.
If the external monitor works, the computer display or video controller may be