“When I turn on the TV for my 55" Smart TV it says the HDMI signal is found and then lost and does this over and over again. It is connected to HDMI 3 and I have checked all of the connections. How do I get this to stop as it is very frustrating.”
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What are you connected to? Do you get the same behavior when connecting to all HDMI ports? The TV does have CEC capabilities, if it only happens on port 3 this could be the issue. If so go into settings and disable CEC. Also, if you have it plugged into something like an AV receiver, make sure the receiver keeps the HDMI ports alive while idle. Otherwise the reciever may power down ports when inactive, if that occurs then the TV will not detect a signal.
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