Vizio V755-G4 SERIAL (LBNFQQAV) MAIN BOARD POWER T-CON KIT. MAIN BOARD – T. POWER BOARD – PW. T-CON – HV750QUBN9D – C-PCB_HV750QUB-N9D. PLEASE NOTE: Avoid ordering incorrect parts. This model may use several different parts sets and panels for the same model number. Never order parts by TV model number alone.