This one involved 3 special guests. Jason, who repairs industrial EM gear for a living, and Jim and Gayle(?) who own some Gottlieb machines.

We noticed two problems: the machine won’t stop resetting scores, and the 100-point relay was locked on.

Jim and Gayle and I took a good look at the score reels. The player 2 100-point coil was toast, with a very melted coil sleeve. They removed it; I’ll order a replacement. The rest seemed fine at first glance.

Jason and I took a careful look at the and checked all of the switches that led to the 100-point section. It turned out that the change relay was wedged in a weird position, which was locking the 100-point switch on.

It still resets eternally. I think the next thing to check is the 0-position detection for all the reels.