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Common problems – Dell IN2020M Monitor User Manual

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Dell IN2020/IN2020M Flat Panel Monitor User's Guide

file:///C|/Users/santhosh_v/Desktop/UG_en/solve.htm[3/27/2013 12:21:04 PM]

For OSD-related issues, see

OSD Warning Messages

.

Common Problems

The following table contains general information about common monitor problems that you might encounter and the possible solutions.

Common Symptoms

What You Experience

Possible Solutions

No Video/Power LED off

No picture

Ensure that the video cable connecting the monitor and the computer is properly connected and

secure.

Verify that the power outlet is functioning properly using any other electrical equipment.

Ensure that the power button is depressed fully.

No Video/Power LED on

No picture or no brightness

Increase brightness & contrast controls via OSD.

Perform monitor self-test feature check.

Check for bent or broken pins in the video cable connector.

Run the built-in diagnostics.

Poor Focus

Picture is fuzzy, blurry, or ghosting

Perform Auto Adjust via OSD.

Adjust the Phase and Pixel Clock controls via OSD.

Eliminate video extension cables.

Reset the monitor to Factory Settings.

Change the video resolution to the correct aspect ratio (16:9).

Shaky/Jittery Video

Wavy picture or fine movement

Perform Auto Adjust via OSD.

Adjust the Phase and Pixel Clock controls via OSD.

Reset the monitor to Factory Settings.

Check environmental factors.

Relocate the monitor and test in another room.

Missing Pixels

LCD screen has spots

Cycle power on-off.

Pixel that is permanently off is a natural defect that can occur in LCD technology.

Run the built-in diagnostics.

Stuck-on Pixels

LCD screen has bright spots

Cycle power on-off.

Pixel that is permanently off is a natural defect that can occur in LCD technology.

Run the built-in diagnostics.

Brightness Problems

Picture too dim or too bright

Reset the monitor to Factory Settings.

Auto Adjust via OSD.

Adjust brightness & contrast controls via OSD.

Geometric Distortion

Screen not centered correctly

Reset the monitor to Factory Settings.

Auto Adjust via OSD.

Adjust brightness & contrast controls via OSD.

Horizontal/Vertical Lines

Screen has one or more lines

Reset the monitor to Factory Settings.

Perform Auto Adjust via OSD.

Adjust Phase and Pixel Clock controls via OSD.

Perform monitor self-test feature check and determine if these lines are also in self-test mode.

Check for bent or broken pins in the video cable connector.

Run the built-in diagnostics.

Synchronization Problems

Screen is scrambled or appears torn

Reset the monitor to Factory Settings.

Perform Auto Adjust via OSD.

Adjust Phase and Pixel Clock controls via OSD.

Perform monitor self-test feature check to determine if scrambled screen appears in self-test mode.

Check for bent or broken pins in the video cable connector.

Restart the computer in the safe mode.

Safety Related Issues

Visible signs of smoke or sparks

Do not perform any troubleshooting steps.

Contact Dell immediately.

Intermittent Problems

Monitor turns on & off

Ensure that the video cable connecting the monitor to the computer is connected properly and is

secure.

Reset the monitor to Factory Settings.

Perform monitor self-test feature check to determine if the intermittent problem occurs in self-test

mode.

Missing Color

Picture lacks color

Perform monitor self-test feature check.

Ensure that the video cable connecting the monitor to the computer is connected properly and is

secure.

Check for bent or broken pins in the video cable connector.