Dell Latitude D630C (Late 2008) - Manual (Page 129)

Troubleshooting 129
R U N T H E V I D E O D I A G N O S T I C S T E ST S — If no error message appears and you still
have a display problem, but the display is not completely blank, run the Video
device group in the Dell Diagnostics. If the problem persists, contact Dell (see
"Obtaining Assistance" on page 193).
S E E "E RR OR M E S SA G E S " — If an error message appears, see "Error Messages" on
page 110.
If only part of the display is readable
C O N N E C T A N E X T E RN 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 "Obtaining Assistance" on page 193).