1996 Genie model z-45 lift wont move

I new to this forum I have read a lot on here but have never posted. I hope some one can help me. I am working on a 1996 Genie gas model z45 for my friend. He parked it and it was working a week later he started it up to move it and the boom wont work, the serial number is z-45-003574. I have narrowed the problem to the hydraulic flow out of the proportional manifold assemble. The life moves and the lift steer's but none of the lift arm function work. I have no hydraulic pressure exiting the proportional manifold to the function manifold but I have pressure into the valve and to the steering. The electric solenoid on top of the proportion valves a 2 wire solenoid and it has power and ground . How does this work is it a 3 way valve? or just a 2 way valve on and off? what lets the fluid pressure through the valve ? I attached a picture I hope I did it correctly I have the wires unhooked from the valve. Also in the service manual I don't see where the wires come from what is controlling the electrical signal to this valve

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1996 Genie model z-45 lift wont move