When I plug the power cord in it makes a clicking noise in the back of the set. there is no picture and it continues to make this sound until you unplug it.it sounds as if the tv is continually turning on and off. can anyone offer any suggestions
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This model is nortorious for Y-sustain board failure, replace the Y-sustain board and you should be good to go. The Y-sustain board is the one while standing with back off the set is the board on the left side of the television.
Plasma and LCD TV sets are prone to having capacitors in the power supply section fail. This is the most likely cause for the probem you describe. When capacitors fail your will commonly see one or more of the following symptoms.
You should be seeing a validation that the TV is getting power. Like the lights are coming on, or you are hearing clicking when you plug in or power up the TV. Make sure you have the TV’s power cord plug inserted all the way into the TV. Also, make sure the TV's cord is plugged into a good power outlet.You may want to plug something else into the power outlet to be sure the outlet is good. I don’t see how laying down the TV would cause this issue.Unless the TV was kind of dropped and or twisted to cause a board inside the TV to fracture/break. I hope this information has helped you. Good Luck.
It really sounds like your power supply is having problems with heat and not enough cooling inside your tv. You should if you can take the back cover off, also, and blow out all the lint and dust that has been drawn into the tv over time. Usually a couple of years is enough to build up dust and lint that can cause tiny static discharges inside your set. If there is a way of keeping your set cooler by placing it in a different position where there is sufficient room for air to circulate without restriction around it, that would help as well. The power supply the one with the power cord going to it from the inside should be your culprit. Good luck and God bless.
just to be sure, plug something else into the same wall socket to make sure you have power there. If you have power at the wall and the TV has a detachable power cord, try the TV power cord in your computer to see if it works. Otherwise you probably have a faulty power supply in the TV.