Hi paulace +
because there is a topic running in a german forum I plan to open up here in pinside a topic "faults in schematics / manual - Fan-Tas-Tic". Funny - Your last sentence in post-8 --- reading Williams schematics from the 1970ies: I simply not pay(ed) attention to these "O" and "C" --- maybe grumbling
- "I see from the "diagonal line" drawn through the switch: The switch is closed, I see it is a Score-Motor-Switch - therefore when the switch will be operated, actuated - it will OPEN --- I simply do not look at the "O".
- " I see from the absence of a "diagonal line" ...
- I see from "IMP." at the drawing that the switch is mounted on the Impulse-Cam of the motor --- there always are mounted 5 teeth on a turn of 180 degrees - O.K., I see written there "5" - who cares.
MarkG - thanks for the link in Your post-7 and the JPG (from the document) --- maybe (?) useful on early schematics on pins when they had the old Score-Motor (looking similar to Gottlieb Score-Motors).
I accept the naming of the Score-Motor-Cams "IND 1 2 3 4 5" as "telling when operating in a turn of 180 degrees - IND is the cam having actuated its switches in Home-Position, cam-1 will actuate at "30 degrees (((one times 30))) ", cam-2 will actuate at "60 degrees (((2 times 30))), cam-3 will actuate at "90 degrees (((3 times 30))), cam-4 will actuate at "120 degrees (((4 times 30))), cam-5 will actuate at 150 degrees "(((five times 30)))".
I look at Williams, Bally, Gottlieb schematics assuming "a game has been started for one player - all the reset stuff has been done, ball has been kicked over to the shooter alley - then pin is toggled-off and / or line cord unplugged".
I never could look up in a Chicago Coin machine - from the schematics (see the JPG) I assume "a game has been started for one player - all the reset stuff has been done, ball has been kicked over to the shooter alley - AND then the pin stays toggled-on and line cord plugged-in".