hello, I have a 74 Williams skylab that the 100 point score wheel will not reset. If I reset it to zero it will reset and play fine everything works fine. Once game is over and that wheel is on a number other than zero it will not reset. If I try to reset without being on zero score motor will just keep running and relay in back box keeps pulsating to no avail. If I turn power on and go to the score reset relay which has 4 switches and hand close each individual switch all will reset except the 100 point switch does nothing. Acts like no power but power to the other 3. I am lost. I have looked at all the score wheel switches, cleaned, matched against each other and see nothing wrong. I have looked and cleaned all the score motor switches with no luck. Machine was working ok before with a once in a while no reset but now no reset at all unless I manually put to zero. Any help would be greatly appreciated. I do not have hard copy of schematic but have access to it on computer screen. I can not read schematic very well but am learning. I can solder fix anything I see broken but am stumped on this reset thing.
michael2468

Thank You gentlemen for your info. Machine is fixed turned out to be switch on the reel itself, cleaned again and re-gap and all is well. Been racking my brains out thinking ahead when it was a simple switch. Thanks again.