Re: New Sierra 1s and a dead Yamaha AVR???
If you're using ARC output you must assign your other components with ARC... otherwise...you'll not get audio or try using coax or fibre optic cable. I found out with my anthem...HDMI wasn't ARC compliant and I bought a different receiver to solely use HDMI.
*Have you tried a different AVR with speakers to rule out one or the other*. I doubt this will be the problem...it's likely due to finding the correct assigned output.
Speakers 5.1.2: TitanTowers v2 & STC(RAAL v2), MA CP-WT&CT260
Sub: Funk Audio 18.0 SantosRW
Source: Denon X3800H, Oppo BDP 103D, UBK-90 4K & LG B9 65"
Office 2.0: Philharmonic True Mini, Fosi TB10D via Wiim mini.