Hi wizardblom
could You solve the problem ?
If not - look at the first JPG - it is made from jeffc 's picture in post-6 --- how are my "marked green" wires connected ? Look at the second JPG - the Coin-Unit in my Williams Shangri La --- I made a "green dot" - wire "Yellow" is screwed on to the housing - EVERYTHING METAL on the Unit happens to be "wire-yellow" --- in the upper right corner an enlarged pic "Ball-Count-Unit".
Well, my pin is a Williams - and the wire is the common Williams-Wire-Yellow --- but may want to look for in Your Bronco - for an screw with an washer and signs of "broken-off wire" ?
No luck (?) - the third JPG shows stuff "Coin-Unit" I have found in the Bronco-schematics. When a friend helps an pulls on the "Snow-Shoe-Wipers on the Coin-Unit" - You then learn about (as it is no longer funcioning due to pulling on the snowshoes): Which wires are for the lights - which wires are for "stepping to next player / next ball". This reduces the number on "wires in question on 'wire-black-yellow problem' " and You only must investigate on the remaining wires.
Sometimes we read on a schematics: "Due to wire shortages - color of wires in the pin may be other than shown in the schematics (we used whatever colors we had)" --- very much non-pleasing.
I agree with jeffc 's post-5. Greetings Rolf
0Coin-Unit-pinside-Work-01 (resized).jpg