When the ball drains it activates the Outhole Relay. This closes the NO switch on that relay. Another switch starts the score motor to start bonus count etc..
The NO switch at SCM7A pulses the line through the closed switch on the Outhole relay to fire the outhole coil.

The switch on the SCM is closed every time it rotates but only has an effect when the other switch is closed.

It’s almost the same exact circuit as the person with the Space Time problem has in their machine, except on that machine it’s switch 7B not 7A. If none of those hole ejects or kickers will work, then it is likely that this switch is not closing properly when the score motor turns and needs checking and possibly adjustment (which is the problem they are having).

The other part of the circuit that makes this work is the lock-in switch for each relay, that is, left hole re., right hole re. ,etc. if you check each of those relays you will find that each will have a NO switch that will close when the relay is first energized, and keeps the relay held in so it can do all of its jobs (the lock-in switch), and this switch is connected to a NC score motor switch that is AFTER position 7. When that NC score motor switch opens it disconnects the lock-in switch, so after the ball is kicked out then the relay will de-energize and thus that circuit will be open again. I believe that this actually would be the 10B switch that you can see in the snippet you posted, and just above that I believe is the right hole re. lock-in switch. The other 3 relays should be connected with a lock-in switch into that same circuit line through SCM 10B.

So when the score motor gets to peg 7 it causes the action, then shortly after it gets to peg 10 and opens the circuit back up. It’s all in the timing. Score motors are cool things.