I have a an issue with my secret service as well, not really similar but sort of. First my display is out so diagnostic is difficult, testing it either my chips or glass is bad, ordering a new led display but that will be a while to arrive. So I turn the game on and it boots and goes to attract mode, the centre pin in flippers goes up down three times then stops. It will coin up and when a game is started it's like the wrong coils are firing, the knocker goes and the upper right out hole but not the ball trough transit or ball trough out hole, if i put the ball in play manually it will score and register switches but the ball drain is not detected.