Hi Rick
great - no more extraordinary problems --- back to normal stuff. Stop blaming Yourself --- actually You helped me - made me think of "must bring back to life / resurrect my topic about fuses".
The problem "Score-Motor runs and runs and runs": The Score-Motor and many Relays have a so-called "Self-Hold-Switch" - when started / actuated: The Motor / Relay closes this / its Self-Hold-Switch and it will run forever*** / pull forever***.
Well not forever*** as in the pin on another place something is made opening an switch - and this switch is also in the wiring of the "Self-Hold-Circuitry" - this switch made opening cuts the Self-Hold-Circuitry of the running Score-Motor / pulling Relay.
Example of Self-Hold-Switch etc.: See in the JPG my "red-10, -11, -12" - something makes the (red-10) M-100-Point-Relay pull-in - it actuates all switches - so the (red-11) "Self-Hold-Switch" closes and the relay pulls forever*** --- well, not forever*** as the moved plunger on the 100-Point-Score-Drum opens (red-12) Switch and cuts "Self-Hold-Circuitry" --- "red-10" let go and so its switches move back - so "red-11" opens - End of giving 100 points.
Another example of Self-Hold-Switch etc.: See in the JPG my "orange-6, -7" - something makes the (orange-6) Score-Motor start running --- after about 15 to 16 degrees of running / turning: The (orange-7) Self-Hold-Switch closes - stays closed - keeps the motor therefore running - the motor reaches degrees 118, 119, 120 and orange-7 opens --- motor stops.
Example of "a bit more complex feature 'making 500 points' actually means 'making five times 100 points by calling for help of a Score-Motor-Turn which will make the Score-Motor-Switch-1A to pulse five times to activate five times the M-100-Point-Relay' ": The ball on the playfield closes (green-1) a switch on a target worth 500 points - and then comes 2,3,4 ... 10,11,12 and ends with 21,22,23,24,25,26.
Rick, You plug-in Your pin and the motor runs a bit --- it does the end of a turn - and reaching 120 degrees: "7/25 opens and so the "motor 6/26" stops. Look in Your schematics near the symbol of the Score-Motor --- WHAT relays make the motor eventually turn --- when Your motor comes to "endlessly running": WHICH of these "relays in quetion" does constantly pulls ? Greetings Rolf
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