Power

The rca itc222 chasis. I see alot of these sets in the shop. first question... does the front led flash green or come on at all. if so then that elemenates the "main fuse" the processor is recieving power and then it "sees" a problem then shuts the set down. The problem is with these set it can be one of about 25 different problems. Most of them involve the high voltage source. Technicians have a special computer interface much like a automobile to read" error code". that help them determine the problem. The only thing you can try is unplug the set for 30 min then try again to turn it on...