Hi Oakley104
You would like to have manuals like this one http://mirror2.ipdb.org/files/1324/Jukebox.pdf (page-19 (ori-17)) ...
Where do "components" sit in the pin (?) The manual of Dealers Choice at least mentions on page-5 (ori-4) that some Adj-Plugs are on the MECH. PANEL means in the cabinet. And on page-6 (ori-5) "Backbox" and "under front of cabinet" are mentioned.
A real drag is / are: "Jones-Plug(s) connecting stuff in the cabinet and in the backbox and on the playfield and on the coin door" --- on Dealers Choice there is NO INFORMATION. "Later Williams pins like Big Deal" - see http://mirror2.ipdb.org/files/245/Williams_1977_Big_Deal_Instruction_Manual.pdf the pages 14,15,16 (ori 12, 13, 14) show the Jones Plugs (Panel is Mech. Panel in the cabinet, Insert is Backbox, P.F. is Playfield)
Bally shows on many schematics such drawings of Jones-Plugs.
Really bad is: Gottlieb, Bally and Williams NEVER show in the drawing in the schematics an Jones-Plug --- we may see "Ball Release Coil - the Kicker to kick the ball over to the Shooter Alley" does kick when the Outhole-Relay is pulling and the Score-Motor is running --- (lets say) in Your pin this Kicker does not kick - You say: The Outhole-Relay is pulling and the motor is running AND have cleaned the contact points and have checked the switches to close" --- a good advice is "there is an Jones-Plug inbetween 'Playfield-Ball-Release-Coil' and 'Cabinet-Outhole-Relay / Score-Motor' - check the Jones-Plug ...".
M.B.-Switch - Make Brake Switch - WHERE did You see "Make before Break Switch" ?
I do not really like "drawings of an Score-Motor-Switch with informations like "C 1-A" or "M.B. 3-D".
The "C" stands for "closing when actuating means N.O.-Switch means Normally-Open-Switch".
The "M.B." stands for M&B-Switch - an three-bladed switch we call Make-and-Brake-Switch.
I'd waive the "C" and the "M.B." --- these informations I see in the drawing of the switch.
Then I look-up in the schematics at "here the Score-Motor is drawn": WHICH Nylon Cam is "1" - which is "3" - and I see the level there "A is near the axis" - then outbound come "B", "C", "D", "E".
The words "Make-and-Brake (Switch)" are no good --- we should say "Brake-and-Make (Switch)" - thats what they do --- people may talk about "MUST (?) the Brake-Part open (?) before the Make-Part closes (?)". I say: Most of the times / places it doesn't matter - few times / places its needed to first open the Brake-Part - then close the Make-Part.
An three-bladed Make-and-Brake-Switch sometimes is used "lighting left or then right a lamp indicating 'here You can make an special replay' --- such "alternating switches, M&B-Switches" I do want adjusted as "first Brake-Part opens then Make-Part closes".
Very often an three-bladed Make-and-Brake-Switch actually is "an Normally-Open Switch closing" and "an Normally-Closed-Switch opening" --- because of limitation in room / space - no room for to mount two single switches: The Manufacturer said: One part is needed in a feature - and the other part is needed in an other feature, feature happening at another time --- we (manufacturer) mount an three-bladed M&B-Switch --- both sides handle "common wire Yellow" - we take common wire Yellow on the middle blade.
You may want to look in the ipdb-schematics-Dealers-Choice at "schematics-A/B-13" - see the three-bladed M&B-Switch on Cam-2, position-D: The Make-Part is "feature Pulses 1st Player Match" --- the Brake-Part is "feature 2 Plays for 25 Cent" --- these two features are not related - it doesn't matter "opening first then closing" versus "closing first then opening" - common wire Yellow is on middle blade. Greetings Rolf