Control box rebuild

[Palletlad]

I tested the wiring but not the actual pins on the board, I will do that as well as try using the A axis pins.
question what would I be looking for when using a multimeter on the pins or should I say what are they meant to read if worked correctly? actually I could compare the other working axis to show what it should be so answered my own question there.
Also was thinking over the A axis swap method as JohnSwift mentioned, When I activate the A axis with 8 and 9 pins how do I make the system treat A as Y or do I put the Y pins 4 and 5 into the A axis?
Before I did have a parallel port with a previous BoB which did have all 3 axis working however I burnt that one out accidently so got the cheap one you see in the picture also I went for this BoB because it had the relays for controlling the VFD on/off and Speed control.