Same thing, TV will not come on just a couple of years old. ?? Please let me know what you find
If you have no indication of power it could be a fuse and if this fuse is black it means more problems ahead, if you have a LED that blinks or turns on you might have a bad component that needs repalcement like a bad Horizonatl output transistor as well as a safety fusible resistor,or a simple loose conection could be the reason,you should get the assistance of a servicer if you are not familiar with tv service.Be careful.
Usually answered in minutes!