Part Type H5 Board Side AV Part Number A-1212-257-A MFR Part Number 1 Sony A-1212-257-A Board Number(s) 1-871-245-12 172774712 A-1187-129-B A-1187-129-A Known Models SONY KDL-40XBR2 SONY KDL-40XBR3 SONY KDL-46XBR2 SONY KDL-46XBR3 SONY KDL-52XBR2 SONY KDL-52XBR3