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. After the update the television may seem to be running slow, but this is normal as the TV is adjusting to the new software and will return back to normal after a few minutes.
MANUFACTURER: Sony
PART NUMBER: A-2039-709-A
ALSO KNOWN AS:
A2039719A
1-893-272-21
A2039719B
A2039719C
TYPE: BAXF Board / HDMI Input / USB Input / Main Board
KNOWN MODELS:
Sony XBR-55X900B
Sony XBR-65X900B
Sony XBR-79X900B
Sony XBR-70X850B