Hi Vince
I do not have the schematics to "Lunar Sot" - I look up in "Apollo" --- DANGER: The Coin-Relay is operated by line-current, 110VAC. Also some switches on the Coin-Relay handle line-current. Other switches on relays handle line-current. Please wear rubber gloves when You fumble around in the "pin beeing plugged-in".
See the JPG - the Coin-Relay on Apollo is made to quit pulling by the turning Score-Motor opening "5B". On Apollo we can use a little trick - we (wear rubber gloves and) press down the "upmost blade on Score-Motor-Index-Cam as mounted in the cabinet in the pin to make the motor to start running.
Please look in Your schematics - look for text "motor run" on the drawing of Index-Wheel - are we lucky and it is also switch "D" with the topmost switchblade ? So when Your pin is humming and the Coin-Relay pulling: Wear rubber gloves, close that switch - questions: Does the motor runs ? and then stops ? and maybe the Score-Drums reset ? and what else ? Greetings Rolf

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