Dell E2211H Manual del usuario - Página 31

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Dell E2211H Manual del usuario
To run the built-in diagnostics:
1. Ensure that the screen is clean (no dust particles on the surface of the screen).
2. Unplug the video cable(s) from the back of the computer or monitor. The monitor then goes into the self-test mode.
3. Press and hold the Button 1 and Button 4 on the front panel simultaneously for 2 seconds. A gray screen appears.
4. Carefully inspect the screen for abnormalities.
5. Press the Button 4 on the front panel again. The color of the screen changes to red.
6. Inspect the display for any abnormalities.
7. Repeat steps 5 and 6 to inspect the display in green, blue, black, white screens.
The test is complete when the white screen appears. To exit, press the Button 4 again. 
If you do not detect any screen abnormalities upon using the built-in diagnostic tool, the monitor is functioning properly. Check the video card and computer.

Common Problems

The following table contains general information about common monitor problems you might encounter and the possible solutions.
Common Symptoms
No Video/Power LED off
No picture
No Video/Power LED on
No picture or no brightness
Poor Focus
Picture is fuzzy, blurry, or
ghosting
Shaky/Jittery Video
Wavy picture or fine movement
Missing Pixels
LCD screen has spots
Stuck-on Pixels
LCD screen has bright spots
Brightness Problems
Picture too dim or too bright
Geometric Distortion
Screen not centered correctly
Horizontal/Vertical Lines
Screen has one or more lines
Synchronization Problems
Screen is scrambled or appears
torn
Safety Related Issues
Visible signs of smoke or
sparks
Intermittent Problems
Monitor malfunctions on & off
What You Experience
Ensure that the video cable connecting the monitor and the computer is properly
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connected and secure.
Verify that the power outlet is functioning properly using any other electrical equipment.
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Ensure that the power button is depressed fully.
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Ensure that the correct input source is selected via the
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Increase brightness & contrast controls via OSD.
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Perform monitor self-test feature check.
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Check for bent or broken pins in the video cable connector.
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Run the built-in diagnostics.
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Ensure that the correct input source is selected via the
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Perform Auto Adjust via OSD.
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Adjust the Phase and Pixel Clock controls via OSD.
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Eliminate video extension cables.
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Reset the monitor to Factory Settings.
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Change the video resolution to the correct aspect ratio (16:9).
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Perform Auto Adjust via OSD.
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Adjust the Phase and Pixel Clock controls via OSD.
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Reset the monitor to Factory Settings.
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Check environmental factors.
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Relocate the monitor and test in another room.
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Cycle power on-off.
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Pixel that is permanently off is a natural defect that can occur in LCD technology.
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For more information on Dell Monitor Quality and Pixel Policy, see Dell Support site at:
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support.dell.com.
Cycle power on-off.
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Pixel that is permanently off is a natural defect that can occur in LCD technology.
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For more information on Dell Monitor Quality and Pixel Policy, see Dell Support site at:
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support.dell.com.
Reset the monitor to Factory Settings.
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Auto Adjust via OSD.
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Adjust brightness & contrast controls via OSD.
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Reset the monitor to Factory Settings.
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Auto Adjust via OSD.
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Adjust Horizontal Position & Vertical Position controls via OSD.
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NOTE:
Reset the monitor to Factory Settings.
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Perform Auto Adjust via OSD.
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Adjust Phase and Pixel Clock controls via OSD.
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Perform monitor self-test feature check and determine if these lines are also in self-test
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mode.
Check for bent or broken pins in the video cable connector.
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Run the built-in diagnostics.
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NOTE:
Reset the monitor to Factory Settings.
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Perform Auto Adjust via OSD.
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Adjust Phase and Pixel Clock controls via OSD.
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Perform monitor self-test feature check to determine if the scrambled screen appears in
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self-test mode.
Check for bent or broken pins in the video cable connector.
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Restart the computer in the safe mode.
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Do not perform any troubleshooting steps.
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Contact Dell immediately.
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Ensure that the video cable connecting the monitor to the computer is connected
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properly and is secure.
Reset the monitor to Factory Settings.
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Perform monitor self-test feature check to determine if the intermittent problem occurs in
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self-test mode.
Possible Solutions
When using DVI-D input, the positioning adjustments are not available.
When using DVI-D input, the Pixel Clock and Phase adjustments are not available.
Input Source Select
button.
Input Source Select
button.