Fixing multi-player game problems on 70s era Gottlieb EM Pinball Machines

The other day one of my games stopped working.. A Gottlieb “300” 4-player EM game. What was happening was it would only do 1-player games and not any 2-3-4 player games. I don’t know if it had been not doing it for awhile since I usually play just one-player games but it wasn’t working. I checked various things and ended up being stumped. Clay gave me a few suggestions and eventually we narrowed the issue down to a stepper unit near the front that ratcheted from 1-2-3-4 players. Duh! This video series is pretty embarrassing, but hey, that’s the way it goes… at least I fixed it…

You’ll notice in the first video in the playlist, I’m basically describing the problem, and then for the second, I’m already well into tearing the culprit stepper motor apart. I don’t remember if I lost part of the video series, or (more likely) I felt like I should have caught this myself and not needed help so I quickly dived into it before I realized some others might benefit from my trials and tribulations.

One thought on “Fixing multi-player game problems on 70s era Gottlieb EM Pinball Machines

  1. I own this game too. I love your vids of 300 and Top Score. They’ve really helped me. Did you ever figure out the “extra” bonus ball kick in the back box? I am having the same problem.

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