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I have Panasonic tv TH-42PV700AZ, When I turn on its green light blinks for 3 seconds and then continue red light on. I tried all your answers. Plz let me know what to do?

The 42 inch TV can’t be turned on. Generally, it’s a power failure. If you have enough money, you can replace it with a 60 inch TV. If you insist on repairing this faulty TV, you can try replacing the power board.