Wow! Another King Pin owner with 'A' problems! (I'm from California and made many trips north on the 41 to Yosemite.) It's a long story, with many posts. Sometimes the 'A would latch, sometimes not. Sometimes the motor wouldn't stop. Sometimes the zero cycle would go half way and the 'A' would not activate! Basically, before I pushed and pulled all the wires I only got one cycle of the motor, not enough to zero the score reels. The motor stopped because -- now this is hard to believe -- the switches are backwards! The schematic has the 5 closed (1 open) and they should be open at rest.
So, as I understand, you hit the start cycle and the 'A' latches, locked in place by the 'AR' coil. So the 5 goes from open to closed. When the score reels all go to zero, 'AR' activates and the 'A' goes back to unlatched.
From the 1975 Gottlieb Atlantis manual: (4) When "A" replay is actuated, it is locked in by the armature of "A" relay reset coil. Through closed switches the score units reset to zero through a switch on motor 1A. When all units are reset and motor 2B makes, "A" relay reset coil is actuated. This releases the armature on "A" relay and opens the switches. The reset cycle is now complete.
The closed 'A' goes to trough and ball return switches -- not concerned now. Four go to the scoring units. (I also had scoring issues poking around.) And the last of the 5 was the motor.
When I got the machine the power wires to the coil were off. But the wiring all looked original. But the spacer moved the long blade which was after the short blade, so it could only make break contact, not make contact.
Honestly, after working on this for a few months, I'm getting confused and frustrated. See the attachments. Everybody thinks that the blades couldn't be the way I described. I so glade you have one and can tell me for sure what is correct.
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