Vizio M70-E3 Main Board (0170CAR0FE00) Y8387944S. Part Type : Main Board. TV Model 1 : M70-E3. Important Notes : 944 is found on a sticker on the front of the board. Tamper proof sticker with serial number added for security.. Removed from a working Television with a broken screen. Genuine Vizio Main Board Y8387944S. Check out my other items.