Hello I have just acquired a Gottlieb 2001 machine. everything seems to work fine except the yellow drop targets. They drop when hit and add the points. When all five close out it should light up one eject holes at the top and the coinciding roll out switch at the bottom to change them from 50 points to 300. All the other 15 drop targets work fine. When all 20 are closed out the special lights that allow you to get free replays still light up and everything changes to 300 points except the yellow.
Looking for any ideas, or maybe this is a common issue any help would be appreciated