E S T T H E E L E C T R I C A L O U T L E T
T
device, such as a lamp.
H E C K T H E
A D A P T E R
C
A C
ensure that the light is on.
O N N E C T T H E C O M P U T E R D I R E C T L Y T O A N E L E C T R I C A L O U T L E T
C
strips, and the extension cable to verify that the computer turns on.
A
D J U S T T H E P O W E R P R O P E R T I E S
Center.
W I T C H T H E V I D E O I M A G E
S
switch the video image to the display.
If the Display Is Difficult to Read
A
D J U S T T H E B R I G H T N E S S
M
O V E T H E E X T E R N A L S U B W O O F E R A W A Y F R O M T H E C O M P U T E R O R M O N I T O R
system includes a subwoofer, ensure that the subwoofer is at least 60 cm (2 ft) away from the computer
or external monitor.
L I M I N A T E P O S S I B L E I N T E R F E R E N C E
E
appliances.
O T A T E T H E C O M P U T E R T O F A C E A D I F F E R E N T D I R E C T I O N
R
picture quality.
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
1 Click the Start button and then click Control Panel.
2 Click Appearance and Themes.
3 Click the area you want to change or click the Display icon.
4 Try different settings for Color quality and Screen resolution.
E E
R R O R
E S S A G E S
S
"E
M
If Only Part of the Display is Readable
C
O N N E C T A N E X T E R N A L M O N I T O R
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 defective. Contact Dell.
See "Contacting Dell" on page 155.
Ensure that the electrical outlet is working by testing it with another
—
Check the AC adapter cable connections. If the AC adapter has a light,
—
Search for the keyword standby in the Windows Help and Support
—
If your computer is attached to an external monitor, press <Fn><F8> to
—
Press <Fn> and the up- or down-arrow key
—
Turn off nearby fans, fluorescent lights, halogen lamps, or other
—
—
If an error message appears, see "Error Messages" on page 94
" —
—
Bypass power protection devices, power
—
If your external speaker
—
Eliminate sunlight glare, which can cause poor
—
107
Troubleshooting