Dell S2419H User Manual

Also see for S2419H: Disassembly procedure User guide

Dell S2419H User Manual Manual pdf 40 page image

40 | TroubleshootingBuilt-in diagnosticsYour monitor has a built-in diagnostic tool that helps you determine if any screenabnormality you experience is an inherent problem with your monitor, or with yourcomputer and video card.NOTE: You can run the built-in diagnostics only when the video cable isunplugged and the monitor is in self-test mode.1 52 3 4To 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. Themonitor then goes into the self-test mode.3. Press and hold Button 1 for 5 seconds. A gray screen appears.4. Carefully inspect the screen for abnormalities.5. Press Button 1 on the bottom of the monitor again. The color of the screenchanges 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 1 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.