My U2 encoder indicates it was made by Alps, but there is no model or part number on it. Does anyone know the part number for the main knob's encoder on the circuit board? I submitted a support ticket. Just posting here in case anyone knows. While making a hinged door for my U2, I decided to take off the whole front panel to have an easier time attaching a magnet to keep the door closed. In doing so, taking off the front panel of the U2 box, I didn't notice that the shaft for the main knob'