Dell Latitude D630 - Manual (Page 128)

128 Troubleshooting
If the display is blank
NOTE: If you are using a program that requires a higher resolution than your
computer supports, it is recommended that you attach an external monitor to your
computer.
C H E C K T H E B A T T E R Y — 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 turn on the computer.
T E S T T H E E L E C T R I CA L O U T L E T — Ensure that the electrical outlet is working by
testing it with another device, such as a lamp.
C H E C K T H E AC A D A P T E R — Check the AC adapter cable connections. If the AC
adapter has a light, ensure that the light is on.
C O N N E CT TH E C O M PU T E R D I R E C T L Y T O A N E L E CT R I C A L O U T L E T — Bypass power
protection devices, power 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 PR O P E RT I ES — Search for the keyword standby in the
Windows Help and Support Center (click Start→ Help and Support).
S WI T CH T H E V I D E O I M A G E — 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 D J U S T T H E B RI G H T N E S S — Press <Fn> and the up- or down-arrow key
M O V E T H E E XT 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 CO M P U T E R O R M O N I T O R — 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 L I M I N A T E P O S SI B L E I N TE R F E R E N CE — Turn off nearby fans, fluorescent lights,
halogen lamps, or other appliances.
R O T A T E T H E CO M P U T E R T O FA CE A D I F F E RE N T D I R EC T I O N — Eliminate sunlight
glare, which can cause poor picture quality.
A D J U S T T H E W I N D O W S D I S P L A Y SE T T I NG S —
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.