Part Type: U Board A/V Board Signal Board S Video Input Part Number: A-1300-551-A Part Usage: Rear Projection MFR Part Number 1: Sony A-1300-551-A Board Number(s): 1-685-618-11 A-1401-054-A 1-721-564-11 Known Models: SONY KP-51WS510 KP-51WS500 KP-65WS510