Back to Contents PageTroubleshootingDell™ E1609W Flat Panel Monitor User's GuideTroubleshooting Your MonitorGeneral ProblemsProduct Specific ProblemsTroubleshooting Your MonitorSelf-Test Feature Check (STFC)Your monitor provides a self-test feature that allows you to check whether your monitor is functioning properly. If your monitor and computer are properlyconnected but the monitor screen remains dark, run the monitor self-test by performing the following steps:1. Turn off both your computer and the monitor.2. Unplug the video cable from the back of the computer. To ensure proper Self-Test operation, remove the Analog (blue connector) cables from the back ofcomputer.3. Turn on the monitor.4. This box also appears during normal system operation if the video cable becomes disconnected or damaged.5. Turn off your monitor and reconnect the video cable; then turn on both your computer and the monitor.If your monitor screen remains blank after you use the previous procedure, check your video controller and computer system; your monitor is functioningproperly.OSD Warning MessagesFor OSD-related issues, see OSD Warning MessagesBuilt-in DiagnosticsYour monitor has a built-in diagnostic tool that helps you determine if the screen abnormality you are experiencing is an inherent problem with your monitor, orwith your computer system and graphic card.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 and buttons on the front panel, simultaneously for 2 seconds. A gray screen appears.4. Carefully inspect the screen for abnormalities.5. Press the button 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, and white colored screens.CAUTION: Before you begin any of the procedures in this section, follow the safety instructions.The floating 'Dell™ - Self-Test Feature Check' dialog box should appear on-screen (against a black background) if the monitor cannot sense a videosignal and is working correctly. While in self-test mode, the power LED remains green. Also, depending upon the selected input, one of the dialogsshown below will continuously scroll through the screen.NOTE: You can run the built-in diagnostics only when the video cable is unplugged and the monitor is in self-test mode.