Part Info: Brand: Vizio / Toshiba / Onn / Insignia / Sharp Part Type: T-Con Board Part Number: 55.43T10.C03 Board Number: 55T32-C0F TV Model: D43F-E2, E43-E2, D43-E2, E43-F1, V435-H11, V436-G1 Insignia; NS-43DF710NA19, NS-43DR620NA18 Onn; ONA43UB19E04 Sharp; LC-43LBU591U Toshiba; 43LF621U19, 43LF711U20 Important Notes : 5543T10C03 is found on a sticker on the front of the board. *IMPORTANT: Horizontal lines on the screen are virtually NEVER caused by a bad T-con board. Horizontal lines indicate a defective panel (screen) 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. If you are having difficulty finding the correct part number please contact us before ordering and we will be happy to help you. Our parts are pulled from televisions with broken screens. Usually these televisions are damaged while in transport to a major retailer. Others may be from televisions that were damaged while under warranty. All of our televisions are lit up and tested before being disassembled. Our parts may have some signs of use.