My OXO works perfectly except it does not score 5000 points (but does add an extra ball) after scoring 3 X's or 3 O's in a row and hitting the hole. It usually, say 80% of the time, scores 1000, occasionally, say 10% scores 2000 and the rest of the time scores nothing. I have looked at the schematic, wondered if it involved 5 pulses from the score wheel, cleaned those switches but still no luck. I will continue to scour the schematic as I would prefer to solve these on my own but....

BTW, sorry for the double posting of this topic, I accidentally hit enter but thought it denied the entire entry. Oh well.

Pin-it, good call on the score motor, it works fine now. Somewhere in cleaning the switches however, I created a new mildly bothersome problem. About 25% of the time, the game now is awarding bonus as if all nine Os or Xs have been scored when in fact only 2 or 3 or 4 have been. This is sometimes but not always accompanied by the special lights lighting. Any thoughts??

Special seems to go on at will but especially when the ball is being bounced around between pop bumpers. Once on, it will score 9000 bonus on ball drain. Otherwise, it is scoring one or two extra thousands of bonus at the end of each and every ball.