I have an NS-SB212 soundbar connected to an Insignia TV in my motorhome. When I went to use it today, the selection switches are incorrectly working. When I click the Input button, the input does not change but the DSP mode steps through the 3 modes. When I click the DSP button, the DSP mode does not change but the Bass mode turns on and off. When I click the Bass button, the bass mode does however, work correctly. Powering down the unit and restarting does not fix it. The soundbar IS otherwise working using the Aux input.