First, the routing of the wires from head carriage to control. The original path was from the top terminal strip
to the control by passing first to the Flex Joint, then over the top of the machie to the left cabinet. There, the
SSR pcb controlled the outputs for the valves. The inputs (proxes and switches) went to the rear door of the left
cabinet, and (doh!) returned to the right cabinet.
The blue wires are inputs to the control, and goto to the left cabinet rear door. See terminal strips TB31,32,33.
The red wires are outputs from the control, and goto the Solid State Relay board.
