Part Type: DF5 Mount DF5 Board Part Number: A-1253-588-B MFR Part Number 1: Sony A-1253-588-B (A1253588B) MFR Part Number 2: Sony A-1253-588-A (A1253588A) Board Number(s): 1-873-819-12 1-873-819-11 Known Models: SONY KDL-52S5100 KDL-52W3000 KDL-52WL130 KDL-52WL135 KDL-52XBR4 KDL-52XBR5