I recently purchased a Sony XBR-75X850E and I am having trouble getting ARC to work properly.
Receiver is an Onkyo RZ820.
Main HDMI output is connected to Input 3/ARC on the X850 TV.
I've toggled ARC on/off for the receiver, upon restart, the TV and Receiver connect just fine, audio input comes from the TV and out the speakers from the receiver. Seems like it works for a day or two, and then all of a sudden I'll turn off the TV, and the Receiver remains on and goes into the Audio Return mode, where the display shows the receiver is receiving input from the TV.
At that point, audio won't work again until I toggle the Sync off/on again, but if I turn on the TV and turn it back off, the Receiver and TV both turn off as expected. Some times it seems like the receiver detects a signal, and then turns back on.
Unfortunately, I don't have another TV/Receiver to easily test. It just seems like the technology is super glitchy and I feel like I spent enough $$ to not have to deal with it.
Any ideas? Seems like all I should need to do is connect HDMI Output to TV ARC Input 3. Then ensure Receiver and TV have ARC enabled.