Hi Thanks for your reply. Not sure which part number you are referring to: The player its self looks like the DVP-NS29 but it has the surround sound option fitted & it has the model No HCD-S800 on the rear case. The serial NO is 5761719. While on the power supply board it has the number PWB 1-720-197-33 printed on the top side of the board, But there is another number on the bottom side this being :1-682-284-33 POWER PWB. I hope this helps Kind regards Patrick

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