For those with sound cutting out and pops/crackles
I've been having the issue where sound cuts out randomly and it's gotten a lot worse over the past few months, now not working for many minutes until the receiver has warmed up after being turned on, or just not working at all. The speaker icons also turn off while sound is cut-out, causing it to look like an input issue. I thought it was HDMI ARC on my TV (LG B7) but Optical audio was no better, and neither are any others.
Anyway this problem is very common and as mentioned in a few places the cause is the TI DSP chip (D80YK113CPTP400) failing. Not Yamaha's fault and not limited to Yamaha receivers. Maybe a replacement board will be better (until the chip on it inevitably fails, too) or maybe a replacement board will have already failed by the time you buy it. So replacement boards don't seem like a great option.
TI knows about this issue and it's documented here: (I don't have enough posts to be allowed to post a link.. so see my next post for that)
They have a drop-in replacement part (D80YK113DPTP400).
I'm going to call Yamaha and see if they will replace my board seeing as it's a known-issue and they may have boards with the newer TI chip. Maybe TI even reimburses them in some part for this kind of issue, who knows. If they will replace then great, but even they won't, I'm going to order a D80YK113DPTP400 and attempt to replace the chip on my failed board myself (I have access to a rework station).
I'll post back when I get somewhere with Yamaha or replacing the chip!