Vizio D65U-D2 Main Board (75501C010001, 75501C010002) 791.01C10.0002. >Main Unit, Main Board, HDMI Input, A/V Board, Signal Board, Tuner Board, USB Input, Digital Audio Output, Ethernet Input. 75501C010001, 748.01C06.0011. Part number 75501C010001 / 75501C010002 can be found on a sticker located on the front of the board. Check out my other items.