Dell Canvas 27 Users Guide - Page 52

Common Problems The following table contains general information about common problems you might encounter and the possible solutions: Common Symptoms No Video/Power LED off No Video/Power LED on Missing Pixels Stuck-on Pixels Brightness Problems Safety Related Issues Intermittent Problems What You Experience Possible Solutions No picture • Verify that the power outlet is functioning properly using any other electrical equipment. • Ensure that the power button is depressed fully. • Ensure that the video cable connecting the Dell Canvas 27 and the computer is properly connected and secure. • Ensure that the correct input source is selected in the Input Source menu. No picture or no brightness • Increase brightness & contrast controls via OSD. • Perform Dell Canvas 27 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 in the Input Source menu. LCD screen has spots • Cycle power on-off. • Pixel that is permanently off is a natural defect that can occur in LCD technology. • For more information on Dell Monitor Quality and Pixel Policy, see Dell Support site at: http://www.dell.com/support/monitors. LCD screen has bright spots • Cycle power On-Off. • Pixel that is permanently off is a natural defect that can occur in LCD technology. • For more information on Dell Monitor Quality and PixelPolicy, see Dell Support site at: http://www.dell.com/support/monitors. Picture too dim or • Reset the Dell Canvas 27 to factory settings. too bright • Adjust brightness & contrast controls via OSD. Visible signs of • Do not perform any troubleshooting steps. smoke or sparks • Contact Dell immediately. Dell Canvas 27 malfunctions on & off • Ensure that the latest BIOS, video, Thunderbolt, and USB drivers are installed on the attached system. • Check for firmware / driver / application updates through Canvas Installer. • Try known good cables. 52 │ Troubleshooting