You MUST check and verify that your original part number is "BN96-45912A", as your TV model uses three (3) different Power Button/IR Sensor Boards. They are NOT interchangeable. If you purchase and install the wrong one, it will NOT work in your TV.
Your original part must show "BN96-45912A" or else it will NOT work in your TV.
Description
BN96-45912A UN55NU7100 UN40NU7200 and Other Models