I noticed a few days ago that then I hit the mute button it mutes al the way.
The mute lever doesn't work at all when I mute.
I was at a known false K area so I muted it and I noticed KA flashing but no sound.
I just got this unit back from VR, I sent it in for a tune up about a month ago.
Its 3.819 so i am not sure if this is the way the older unit acts when muted or its broken.