Quoted from pinballdaveh:If there isn’t a strike relay, there should be a 1-10 completed relay in the bank that might be the problem.
Yes, it sounds like the 1-10 Relay in the Relay Bank isn't resetting. Most likely it's not because it's energizing
after each shot, but it's not latching during reset which is telling the machine all 10 pins are made after the
1st Shot Relay is energized. At the start up of a game, check the Relay Bank and see if the 1- 10 relay is
already in the energized (tripped) position..