You have all cabinet labels yes??
Under the PF - bottom relays - these are the 2 side by side. On left is INLINE RESET RELAY, on right is 500 POINT RELAY,
The other relays are for bumpers etc - not the logic of the game
In back box - none of mine are labelled also and game is in pieces so i cant start her up and tell you.
This will be going in my shop soon though and will work it out then