Diagnosing and testing optos on a Gottlieb System 3: Waterworld

Another video from my restoration work on this Gottlieb Waterworld pinball machine – actually two videos in this series where I talk about trying to isolate a problem with the optos on the game and comment about the design of the game and how the optos work, how to test and figure out what’s wrong?

But there’s more… I discovered an issue on this particular game, and possibly on other Gottlieb games that use this style of opto bracket… more info here:

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