Partial part number (65169921) can be found on a sticker.
LG EAY65169921 Power Supply / LED Board for 65LB7100-UB
Part Number: EAY65169921
Part Type: LIPS
Manufacturer Part Number 1: LG EAY65169921
Board Number: EAX68248021(2.0) / LGP65-19UL6
Known Models
65SM8600PUA BUSYLJR,BUSYLOR
65SM8100AUA BUSGLOR
65SM8600AUA BUSYLOR
65NANO81ANA BUSWLOR,BUSFLOR
65NANO81ANA BUSFLOR
65NANO85UNA BUSWLOR