The bonus RE should energise first via the bonus stepper unit and then via the out hole switch. I would check the bonus unit zero position switch. As the schematic says below the wires should be Red-Black and green on the bonus unit. Probably hard the check the wire colours I guess. It should be closed when the ball is in play. When the ball is in play the out hole switch should have power waiting for the ball to hit it. It then sends power to the bonus relay.The score motor should run when the bonus RE is energised. After the bonus unit steps to zero it transfers power to the out hole relay. That's how its drawn anyway. I hope this helps. Last note; the M.B contact on the score motor should be closed if the motor is not running which sends power to the bonus unit (I am assuming it is.)
Dan
