Dell UltraSharp 27 Series User Manual

Dell UltraSharp 27 Series User Manual Manual pdf 56 page image

56 | TroubleshootingProduct Specific ProblemsProblem What youexperiencePossible solutionsScreen image istoo smallImage iscentered onscreen, but doesnot fill entireviewing area• Check the Aspect Ratio setting in the Displaymenu OSD.• Reset the monitor to factory settings.Cannot adjustthe monitor withthe buttons onthe front panelOSD does notappear on thescreen• Turn off the monitor, unplug the monitor powercable, plug it back, and then turn on the monitor.No Input Signalwhen usercontrols arepressedNo picture, theLED light is white• Check the signal source. Ensure the computer isnot in the power saving mode by moving the mouseor pressing any key on the keyboard.• Check whether the signal cable is plugged inproperly. Connect the signal cable again, ifnecessary.• Reset the computer or video player.The picture doesnot fill the entirescreenThe picturecannot fill theheight or widthof the screen• Due to different video formats (aspect ratio) ofDVDs, the monitor may display in full screen.• Run the built-in diagnostics.No imagewhen usingUSB Type-Cconnectionto computer,laptop, and so onBlack screen • Verify if the USB Type-C interface of the device cansupport DP alternate mode.• Verify if the device required more than 90 W powercharging.• USB Type-C interface of device cannot support DPalternate mode.• Set Windows to Projection mode.• Ensure that the USB Type-C cable is not damaged.No chargingwhen usingUSB Type-Cconnectionto computer,laptop, and so onNo charging • Verify if the device can support one of 5 V/9 V/15V/20 V charging profiles.• Verify if the Notebook requires a >90 W poweradaptor.• If the Notebook requires a >90 W power adaptor, itmay not charge with the USB Type-C connection.• Ensure that you use only Dell approved adapter orthe adapter that comes with the product.• Ensure that the USB Type-C cable is not damaged.