Part number can be found on the larger white barcode sticker on board.
Samsung BN94-13119P Main Board for HG55NJ678UFXZA
Part Number: BN94-13119P
Part Type: Main Board
Manufacturer Part Number 1: Samsung BN94-13119P
Board Number: BN94-13119P / BN97-14672S / BN41-02692A
Known Models
HG55NJ678UFXZA