So I have a Yamaha HTR-3066 receiver with 4 HDMI ports. At first all the HDMI ports were working but then one of the ports quit transmitting audio completely. I've tried different cables and different devices to rule out the possibility of error but all of my devices are working correctly. When I check the audio output setting on the receiver when on the wonky input I see that the audio is set to ANALOG and 2Ch. I'm thinking the port itself is borked but I've tried all afternoon to get in touch with Yamaha customer support and don't know where else to look for answers (google searching to no avail). The weird thing is the video is transmitting just fine so I was thinking maybe a setting somewhere got changed but I can't seem to find it at all. Any and all suggestions are welcome and I'm willing to try just about anything to fix it without having to send it off for repairs.