Part Type: Main Unit, Main Board, HDMI Input, A/V Board, Signal Board, Tuner Board, USB Input, Digital Audio Output, Ethernet Input. Location: 1E4 Additional Board Numbers: 715G7689-M0C-000-005Y, (X)XFCB0QK024010X, GXFCB0QK024010X, GXFCB0QK024030X, 715G7689-M0C-000-005K, GXFCB0QK024030X, 715G7689-M01-000-005K. Notice: Compatible with Vizio model D55u-D1 TVs with serial number beginning with LTM7UCAR. The board you receive may or may not have connectors at locations CN210, CN212 and CN203. These connectors are not used in model D55u-D1 and will not affect functionality. D55U-D1 LTC7UCAR D55U-D1 LTC7UCAS D55U-D1 LTC7UCBS D55U-D1 LTC7UCCS D55U-D1 LTM7UCAR D55U-D1 LTM7UCBS. Listing and template services provided by inkFrog.