I am having problem with Panasonic Led Tv. After switching on tv runs for few minutes. Then it shuts down only red led is continuing blinking for 5 to 10 minutes and tv starts again. After few minutes it happens again and again.
unplug power cord, press the power button on the TV for about 60seconds, after that, try powering on again
eventually you will have to do this several times to finally "heal" it.
Could be the power supply board with some capacitors broken: https://www.robotroom.com/Faulty-Capacitors-1.html