Lcd tv repair forum

I have an EMERSON LC320EM8 32'' LCD TV. The television powers on and then immediately powers down, regardless of whether I use the hard power button on the TV, or the power button on the remote. I have located a KEY CONTROLLER BOARD (Part No. BL4300F01012-2) that I can pick up for around $17. Does anybody have any idea whether it sounds like I am on the right track with this part? I am moderately technically savvy. If this is the right part, how difficult of a replacement job will this be? Any assistance will be greatly appreciated. Thanks. Kraig