Here are some things to check out if you have no power to the console.
Check to see if you have 12vac coming from the two blue wires from the 5 pin connector that comes from the transformer and plugs into lower board. *If Yes, then we know transformer is good. *If No, you will need to replace transformer.
Check to see if you have 12vac from the orange & gray wire from the 7 pin harness that plugs into the lower board. *If Yes, the lower board is good. *If No, the lower board is bad.
Check the orange and gray wire where it plugs into the back of the console. *If Yes, you have voltage and the console is bad. *If No, the wire harness is bad.