Part Type: Main Unit, Main Board, HDMI Input, A/V Board, Signal Board, Tuner Board, USB Input, Digital Audio Output, Ethernet Input. Part Number: 791.02K10.0002. Location: 00B2 Additional Board Numbers: L7120-1, 748.02K01.0, A18063387, 75502K010002. Notice: Recommended to order by part number whenever possible. Often times there are TV models that use more than one set of parts and/or panels. There are a few different main boards for this model. Please confirm that 75502K010004 can be found printed on a barcode sticker on your original board before ordering. Listing and template services provided by inkFrog.