Facing TV Problems? Ask a TV Technician.
Hi, I'm Pete. Welcome to JustAnswer! I'm reviewing your question now, and will post back with your reply ASAP.
Does the TV turn on and off at regular intervals or times, or is it random?
Ok, in that case there is either a fault with the built-in power supply preventing it from sustaining a continuous power supply to the TV;
or the power button is sticking on either the TV's control panel or a remote control.
You could try removing the batteries from all remote controls that control the TV, or leave them outside the room to eliminate them first.
If the problem persists, check that the button on the TV's control panel is not sticking.
If the power button on the TV seems ok then the internal power supply board is faulty and will need to be replaced.
--------------------Your satisfaction is my priority; I hope I have earned 5 stars today!Kindly take a moment to rate my service 5 stars and press Submit at the top of your question page to finish; tips appreciated :)You can always reply back after rating me if you need any further assistance at all.Pete.--------------------