andrew also today i found a manufacture fault that you may want to look at on bretts.
i was testing resistance between cn8 pins 1-4 ac feed to playfield to ground.found a dead short with playfield down that whent away with it up...umm..left hand side with playfied up,i found a gi lamp that was earthing, as it was to close to the edge and touched the grounded sevice rails when pf was in the down position.food for thought,thanks again damien