Hi all, I have a KIA VA-50. It's pretty old, and one of the poximity switches on the y axis limit switches went. We were able to order the part, but when I went to replace it, the wire color coding is different. The original has white, red and black wires, and the new switch has blue, black and brown. I can get some idea of what the wires on the machine are by how they are wired, but The new switch has no indication of what is what.

Help!

Chappyd