I'm a newbie at this. When playing the machine, I've never been able to get Lites A&B or Lites C&D to light up. I removed the glass and noticed that if I manually press the switch for either and hold it halfway, they will light up and if I press the appropriate 1,3,5 or 2,4,6 that correspond to the side I've activated, I score 5000 points. If I depress the switch fully, I only score 200 and it does not light up. From the manual I can't tell if there is sequence of things that must be done to allow these to light up or if it is a mechanical problem.
Any help on this would be appreciated.