Part Type Main Unit Main Board VGA Input HDMI Input A/V Board Signal Board Tuner Board USB Input Digital Audio Output Part Number BN94-04349A Part Usage Plasma MFR Part Number 1 Samsung BN94-04349A Board Number(s) BN94-04349A BN97-05174A Substitute Parts BN94-04334A Known Models Samsung PN51D490A1DXZA N409 PN51D495A6DXZA