34 Troubleshooting Your LCD TV Displayw w w . d e l l . c o m | s u p p o r t . d e l l . c o mScreen has one or more lines 1 Check the aspect ratio settings in the TV Menu. Press the Menubutton on the remote control and select Size. For moreinformation on using the TV Menu, see "Using the TV Menu"on page 23.2 Ensure the proper source is selected in the Input Select menu.See "Input Select Menu" on page 24 for more information.3 Try connecting a different device. Ensure that you properlyconnect the cables and update the input source in the TVMenu.4 Update the size settings in the TV Menu. Press Menu on theremote control and select Size.5 Reset the original factory defaults. Press Menu on the remotecontrol, select Setup, and then select Factory Reset.The side panel buttons do not work Check the TV Menu to see if the buttons have been locked. PressMenu on your remote control, select Setup.Use the side panel buttons to unlock the TV Menu and sidepanel buttons:1 Press the Menu button.A message appears stating that the TV Menu and buttons arelocked.2 While the message is on the screen, press the volume increaseand channel up buttons on the side panel simultaneously.A message appears stating that the TV Menu and buttons areunlocked.The picture is too small 1 Adjust the size settings. Press Menu on the remote control, andselect Size.2 This may be a problem with your device. See thedocumentation for the device.Problem Possible Solution