Facing TV Problems? Ask a TV Technician.
Hello, my name is ***** ***** I'll assist you. I'm sorry you're having trouble with it. Unplug connector from power board that goes inside display panel (backlight connector) and turn On the TV.
Does TV stay On with black screen and do you get sound from TV speakers?
OK, take your time.
Sorry to hear that, did you get identical replacement boards having same part numbers as of old?
OK, only thing that comes in mind is wifi board or remote sensor board could be short and causing the TV switch Off, it is small board that would be mounted on lower panel where remote sensor board located, it needs to disconnect one board at a time to see if it helps.
Please reply back with the result.
OK, please take your time.