Hi new to this forum and have a problem with my samsung PN50A550 plasma tv. TV power cycles on and off and narrowed it down to the main board. Now my question is all the main board are sold out everywhere i looked but found a main board which looks like the one im looking for. It pretty much looks identical. The thing is it came of a samsung PN50A650. Now im not sure how much different a A550 To an A650 but wanted your opinion before i buy it.
