Piccoboard PRO Jumperswitch?

I think i found the jumperswitch on my piccoboard pro. I have a JR radio and it is running on PPM.. The servos are jittering and are uncontrollable. So i was told to switch the jumperswitch. What way do i switch it? Thanks

hi, i also have a jr radio and am having problems sorting out what servo goes were, also what settings and mode are you using on the radio.........please help