Hi Folks, I took my JVM 410c to get it serviced. Upon turning the amp on and playing it, I found some usual behaviors. On the Clean channel when I scroll through the modes: Green is fine. When I press the mode selector button again for the orange mode, the Master Volume jumps to the 2nd Master Volume. When I press the mode selector button to select the red mode, it jumps back to the first Master Volume. It didn't do this before I took it in. How do I get it to return to the natural setting? Thanks!