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Solving Problems 59
If the display is difficult to read
TEST THE ELECTRICAL OUTLET — Ensure that the electrical outlet is working by testing it with another
device, such as a lamp.
CHECK THE AC ADAPTER — Check the AC adapter cable connections. If the AC adapter has a light,
ensure that the light is on.
CONNECT THE COMPUTER DIRECTLY TO AN ELECTRICAL OUTLET — Bypass power protection devices,
power strips, and the extension cable to verify that the computer turns on.
SWITCH THE VIDEO IMAGE — If your computer is attached to an external monitor, press <Fn><F3>
to switch the video image to the display.
ADJUST THE BRIGHTNESS — Press <Fn><F8> to increase the brightness and <Fn><F9> to
decrease the brightness.
MOVE 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.
ELIMINATE POSSIBLE INTERFERENCE — Turn off nearby fans, fluorescent lights, halogen lamps, or
other appliances.
ROTATE THE COMPUTER TO FACE A DIFFERENT DIRECTION — Eliminate sunlight glare, which can
cause poor picture quality.
ADJUST THE WINDOWS DISPLAY SETTINGS —
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
.
SEE "ERROR MESSAGES"—If an error message appears, see page 48.