You'll need to look at the 3-in-line reset relay circuit and the 5000 point relay circuit. Find the coil for each relay on the schematic and and follow the circuit back toward the switches. For the 3-in line reset relay coil, look at the following;
3-in-line reset relay switch - yellow/blue wire and yellow/red wire
Eject relay switch - yellow/blue wire and grey/blue wire
Score motor switch IND E - grey/blue wire and yellow wire
3-in-line reset relay switch - yellow/red wire and blue/orange wire
Score motor switch 5B - blue/orange wire and yellow wire
Make sure these switches are clean and adjusted properly. If these switches check out okay, then we'll look at the relays that control power to the switches...