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Pioneer VSX-830k CUXESM HDMI issue

Shorted electrical panel right bus to ground (flashed).Receiver was connected to power strip that was connected to an
ungrounded receptacle. All functions of the receiver work except HDMI connected video is not passed through. I would like to know what board level components to check or will it require a board replacement. The receiver was connected to the TV ARC HDMI port that no longer displays video (checked with another receiver).I believe I have the correct
schematic diagram.
Any help would be appreciated. Thank you