I have a JD 1770NT CCS 12 row planter. I planted 50 acres with it just fine and folded the planter in, put it in transport mode, and then the planter would not pick up at all. The markers will not work either. All of the hydraulics(pick up, markers, and folding) run into a mechanical control box mounted on the planter frame. Nothing electronic. Anyone have idea as to what is wrong? Thanks.