Chosen Solution
TV keeps resetting when changing the input source. When I turn the tv on it comes up on hdmi2, my xbox one wont display when its turned on either. I have a Panasonic th-p42x50z, i have tried hard reset by unplugging and holding on button for 60 second, i have tried it plugged in and holding on button +volume button etc etc.
Hi, Disconnect the power from the TV and take off the back cover and check for any obvious damage such as heat stressed or burnt out components or blown or bulging capacitors especially on the power board. If nothing is obvious then you will have to test the voltages on the board. Be safety aware if you do this as there is potentially lethal exposed AC voltages on the board when you are testing for the DC voltages to see if they are present or not. If you don’t know what you’re doing, then don’t do it! It is not worth it, call the experts. Here’s an image taken from the service manual for the TV showing the voltages on the board, which may help.
(click on image to enlarge for better viewing)
