I was experimenting with different settings on my IC-7300 and trying out manually controlling the RF Gain with AGC off. Too much gain for a moment caused audio clipping followed by the audio going into a weird state. Even after flipping AGC back on it was still acting bizarre (you can see in the video).
At this point I'm in a cold sweat-- did I just brick my new radio like an idiot? I turned the radio off, said a quick prayer, and turned it back on. Thank god the audio is back.
Currently kicking myself right now. I can't just leave well enough alone. I always have to tinker.
Could I have broken something in the ADC or elsewhere?