While disassembling my x50, the machine turned itself on. It did this every time I tried to place a plastic bubble wrap over the control box.(With the coil cable already removed) It had never done this before. Although I never tried to wrap this covering over it before. The power button never came into any contact with anything that could accidentally turn it on. It would not do this if left alone. I wonder if it might be a static charge causing this? Also, when you remove the headphone cable from machine, it does not automatically switch to speaker, I have to restore factory presets to have speaker activate. Anyone experience any of this?