Case ih 800 cyclo air planter help

[sethb4]

I need some help. My brother and I have an 800 cyclo air planter that we bought but we didn't get the box for controlling the row markers. We can't get the markers to lower at all. We've tried jumping wires and putting in switches. It just doesn't make sense. The planter is a 4 row. The best I can tell it has electric controlled automatic switching for the hydraulic row markers.

Can anyone provide me with a wiring diagram of the row marker control system?

Do any of you have a control box not in use you'd want to sell? How about a true service manual?

Thanks