I am helping a friend with his 1974 Bon Voyage EM pinball game. You can switch it on and them press the left flipper to light up the game and engage the lock relay. When you press the start button in the coin door, all the score reels zero out, the coin door relay engages and the ball in play lights up but it doesn’t eject the ball. Also none of the in game features work like flippers, spinner’s, pop bumper or register any points. I have checked all the coils for power, the fuses, cleaned all the contact points and confirmed that the relays works if activated manually. Can anyone offer any advice on where to check to active the play field and eject the first ball.