138
Troubleshooting
C
HECK
THE
BATTERY
—
If you are using a battery to power your computer, the
battery charge may be depleted. Connect the computer to an electrical outlet
using the AC adapter, and then turn on the computer.
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
A C
ADAPTER
—
Check the AC adapter cable connections. If the
AC adapter has a light, ensure that the light is on.
C
ONNECT
THE
COMPUTER
DIRECTLY
TO
AN
ELECTRICAL
OUTLET
—
Bypass power
protection devices, power strips, and extension cables to verify that the
computer turns on.
A
DJUST
THE
POWER
PROPERTIES
—
Search for the keyword
sleep
in Windows
Help and Support.
S
WITCH
THE
VIDEO
IMAGE
—
If your computer is attached to an external
monitor, press <Fn><F8> to switch the video image to the display.
If the display is difficult to read
A
DJUST
THE
BRIGHTNESS
—
Press <Fn> and the up- or down-arrow key.
M
OVE
THE
EXTERNAL
SUBWOOFER
AWAY
FROM
THE
COMPUTER
OR
MONITOR
—
If
your external speaker system includes a subwoofer, ensure that the subwoofer
is at least 60 cm (2 ft) away from the computer or external monitor.
E
LIMINATE
POSSIBLE
INTERFERENCE
—
Turn off nearby fans, fluorescent lights,
halogen lamps, or other appliances.
R
OTATE
THE
COMPUTER
TO
FACE
A
DIFFERENT
DIRECTION
—
Eliminate sunlight
glare, which can cause poor picture quality.
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.
Summary of Contents for Inspiron 1520
Page 1: ...w w w d e l l c o m s u p p o r t d e l l c o m Dell Inspiron 1520 Owner s Manual Model PP22L ...
Page 14: ...14 Contents ...
Page 20: ...20 Finding Information ...
Page 34: ...34 About Your Computer ...
Page 46: ...46 Using the Display ...
Page 52: ...52 Using the Keyboard and Touchpad ...
Page 86: ...86 Using Multimedia ...
Page 90: ...90 Using ExpressCards ...
Page 106: ...106 Securing Your Computer ...
Page 152: ...152 Troubleshooting ...
Page 184: ...184 Dell QuickSet Features ...
Page 202: ...202 Specifications ...
Page 228: ...228 Glossary ...