Part Type SMPS P-SMPS Board Part Number BN96-01856A Part Usage Plasma MFR Part Number 1 Samsung BN96-01856A Board Number(s) LJ44-00105A RNAA00294 Known Models SAMSUNG HP-R4252 SAMSUNG HPR4252X/XAA SAMSUNG HPR4262X/XAA SAMSUNG HPR4272X/XAA SAMSUNG HPR5052X/XAA SAMSUNG HPS4253X/XAA SAMSUNG HPS4273X/XAA SAMSUNG HPS5033X/XAA SAMSUNG HPS5053X/XAA SAMSUNG HPT5034X/XAA SAMSUNG LNS4051DX/XAA SAMSUNG PPM42M5HB SAMSUNG PPM42M5SB SAMSUNG PPM42M6HB SAMSUNG PPM42M6HBX/XAA SAMSUNG PPM42M6SB SAMSUNG PPM50M6HBX/XAA SAMSUNG PS42D5SDX/XEU SAMSUNG PS42Q7HDX/XEU SAMSUNG SPR4212X/XAA SAMSUNG SPS4223 This board has 2 different versions with the same part number. If one looks at the center of the board one will see a few differences. For instance it may have 1 or 2 heat sinks and different locations of the same components. This is ok.