A friend just gave me a Fender ultra chorus. It needs new speakers and he goofed around in side but , otherwise its in great shape. My question is does this thing turn on with the distortion channel on with out a jack plugged in and then switch to clean when you plug a guitar in it? I has the 9 pin switching jacks and it does ground the channel switching circuit when you plug a guitar in. The switch on the panel works and a foot switch works. So everything seems normal.