Part Type: Main Board Part Number: 756TXFCB0QK0240 Board Number: 715G7689-M01-000-005Y TV Brand: Vizio TV Model: D55U-D1 Important Message: XFCB0QK0240 can be found on a sticker on the front of the board. Please order by part number to ensure you’re getting the correct part. There may be more than one of this board type for your television model. Our parts are pulled from televisions with broken screens. Usually these televisions are damaged while in transport to a major retailer. All of our televisions are lit up and tested before being disassembled. Our parts may have some signs of use.