Requesting serviceSettings Support Request Support Try Now" This function is not available in specific geographical areas.You can request service when you encounter a problem with the TV. Select Request Support, and thenagree to the terms and conditions for the service request. Select Request Support again, select the itemmatching the problem that you encountered, and then select Send.Diagnosing TV operational issuesYou can diagnose issues with your TV and Smart Hub and run reset functions.Settings Support Self Diagnosis Try NowYou can use the Picture Test to help diagnose video issues and the Sound Test to diagnose sound issues.You can also view signal strength information for over-the-air digital signals, test the Smart Hub Internetconnection, and run the Smart Hub and TV factory reset functions.There Is a Problem with the PictureWhen the TV has trouble with the picture, these steps may help resolve the problem.Testing the pictureSettings Support Self Diagnosis Start Picture TestBefore you review the list of problems and solutions below, use Start Picture Test to determine if theproblem is caused by the TV. Start Picture Test displays a high definition picture you can examine for flawsor faults.The problem Try this!Flickering andDimmingIf your Samsung Television is flickering or dimming sporadically, you may need todisable some of the energy efficiency features. Disable Energy Saving Mode (Settings System Eco Solution Energy Saving Mode), Eco Sensor (Settings System Eco Solution Eco Sensor), or Motion Lighting (Settings System Eco Solution Motion Lighting).ComponentConnections/ScreenColorIf the color on your Samsung television screen is not correct or the black and whitecolors are off, run Start Picture Test ( Settings Support Self DiagnosisStart Picture Test).If the test results indicate that the problem is not caused by the TV, do the following:● Confirm that the video input connectors are connected to the correct external device videooutput connectors.● Check the other connections as well. If the TV is connected to an external device viaa component cable, confirm that the Pb, Pr, and Y jacks are plugged into their properconnectors.