I SMELL A BIG FAT DIRTY RAT!!!!!

So you use 1 machine as a parts machine, but then to sell on you install a whole WMS relay board???

...NAAAAAAAAH,

My guess also is that this is how it should be... quick check on some schematics would verify this.
Im thinking that this repairer wanted you to put this game into the old "too hard basket" and sell on for say $100? Double your money??? Cant be bad eh?
LOL

I dont want to sell it though , I even put a new rubber kit on it and the play field is prob 8 out of 10. I want it as a project to restore as i like the older games more than the newer ones that u get like 4 million in bonus score. it would take ages to clock the score over on this thing if it worked