CDC Cellular Repair Services, LLC - Dirtbag move, but it worked. My cousin's Onkyo TX-NR609 AV receiver. These are known for crappy HDMI boards. The chip you see is the culprit, the
Onkyo TX NR636 hdmi board problem - LONG TIME SIGNAL ENGAGING, CONSTANT SWITCHING | AVForums
Onkyo Receiver No Output HDMI Board/DTS Chip Repair - YouTube