I just picked up my second EM machine over the weekend, a Gottlieb Sure Shot. Before buying I went through the entire game with the glass off and minus 3 bulbs being out I did notice anything out of the ordinary and thought the game was working 100%. After playing a few games I noticed that when a ball drains the machine makes 3 "resets". At first I simply thought the game was going through some kind of reset mode before kicking out the next ball. After a few more games I determined I'm not getting any additional bonus score once a ball drains. Here are my biggest dilemmas at this point, I don't have any schematics, so I have no clue what to look for. Secondly, even if I did know what to look for, I don't really know how to work on EM's. If anyone has any advice or suggestions please let me know.