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I have a samsung tv that its not powering on..samsung un48js8500. when i plug in to the power outlet i dont get any backlights just the standby light blinking 6 times.. i switch the tcon and main board and still have the same problem.. if i disconect the tcon from the power board i get backlights on and srandby blinking.. if i disconect the main board from the power board i get nothing but the clicking on the power board.. any helpppp