Partial part number (6309A) can be found stamped on the board.
LG 6871L-6309A T-Con Board
Part Number: 6871L-6309A
Board Number: 6309E / 6309A / LE650AQD-ENA1-TJA / 6870C-0852B / 6871L-6309A / 6871L-6309E
Part Type: T-Con
Known Models
OLED65C1AUB BUSYLJR
OLED65G1PUA