RCA 52" PART#(P52927)-CHASSIS#(PTK195M1B)

My set started showing nothing but snow so I had a Repair shop fix the set.They came & took the control unit out of the chassis & just my luck they went out of business.Now I am trying to locate the control unit which sits inside of the television.I may not be calling this part by it's correct name so I'll give a brief description.The service tech that I had fix it called the part a circuit board.The part is basically the internal brain of the set and it has the power cord ,and all the rca's attached to it.Any info on this part would be greatly appreciated.