Part number 056041570031 can be found within serial number on barcode sticker on board.
Vizio 056.04157.0031 Power Supply Board
Part Number: 056.04157.0031
Board Number: 056.04157.0031 / PSLL161201W / PSLL131201W
Part Type: Power Supply
Manufacturer Part Number 1: Vizio 056.04157.0031
Known Models
D55-F2 LWZQWXLU,LWZ2WXKT,LWZ2WXKU