Dell U2414H User Manual

Contents

Dell U2414H User Manual Manual pdf 57 page image

Troubleshooting | 57To 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 monitorthen goes into the self-test mode.3. Press and hold Button 1 and Button 4 on the front panel simultaneously for 2seconds. A gray screen appears.4. Carefully inspect the screen for abnormalities.5. Press 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 and textscreens.The test is complete when the text screen appears. To exit, press Button 4 again.If you do not detect any screen abnormalities upon using the built-in diagnostic tool, themonitor is functioning properly. Check the video card and computer.Common ProblemsThe following table contains general information about common monitor problems youmight encounter and the possible solutions:CommonSymptomsWhat YouExperiencePossible SolutionsNo Video/PowerLED offNo picture • Ensure that the video cable connecting the monitor and thecomputer is properly connected and secure.• Verify that the power outlet is functioning properly usingany other electrical equipment.• Ensure that the power button is depressed fully.• Ensure that the correct input source is selected via the InputSource menu.No Video/PowerLED onNo picture or nobrightness• 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.• Ensure that the correct input source is selected via the InputSource menu.Poor Focus Picture is fuzzy,blurry, orghosting• Eliminate video extension cables.• Reset the monitor to Factory Settings.• Change the video resolution to the correct aspect ratio.Shaky/JitteryVideoWavy picture orfine movement• Reset the monitor to Factory Settings.• Check environmental factors.• Relocate the monitor and test in another room.