Part Type: A Board, Main Unit, Main Board, VGA Input, HDMI Input, A/V Board, Tuner Board, USB Input, Digital Audio Output
Part Number: 1-857-903-51
Additional Board Numbers: 48.71S23.011, 55.73A01.B01
Notice: Recommended to order by part number whenever possible. Often times there are TV models that use more than one set of parts and/or panels. A software update is required upon installing this part. After replacing this board please go to esupport.sony.com and download the correct version for your model and follow all instructions. This part is SN specific. KDL-40BX420 SN: 6,000,001 - 7,400,00
KDL-40BX421 SN: 7,100,001 - 7,200,00
KDL-46BX420 SN: 6,000,001 - 7,400,00
Compatible TV Models: Sony
KDL-40BX420 KDL-40BX421 KDL-46BX420Please contact us if you have any questions!