Display (6565/6868/6878)

Display (6565/6868/6878)

If the screen is rolling, replace the display assembly. If that does not correct the problem, replace the video adapter (if installed) or replace the system board.

If the screen is not rolling, do the following to run the display self-test:

1.  Power-off the computer and display.
2.  Disconnect the display signal cable.
3.  Power-on the display.
4.  Turn the brightness and contrast controls clockwise to their maximum setting.
5.  Check for the following conditions:
   •  You should be able to vary the screen intensity  by adjusting the contrast and brightness controls.
   •  The screen should be white or light gray, with a  black margin (test margin) on the screen.

     Note:  The location of the test margin varies with the  type of display. The test margin might be on the  top, bottom, or one or both sides.
      If you do not see any test margin on the screen,  replace the display. If there is a test margin on the  screen, replace the video adapter (if installed) or  replace the system board.

     Note:  During the first two or three seconds after the  display is powered on, the following might occur  while the display synchronizes with the computer.

     •  Unusual patterns or characters
     •  Static, crackling, or clicking sounds
     •  A power-on hum on larger displays
      A noticeable odor might occur on new displays or  displays recently removed from storage.  These sounds, display patterns, and odors are  normal; do not replace any parts.

      If you are unable to correct the problem, go to Undetermined Problems.

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