There are 2 paths here:
1. The (blue) path that contains the Credit Button
2. The (green) path that starts the score motor

check each path to see if any switches are not adjusted correctly.

I cut out things you don't need to see from this image. Do you have a schematic?

Since you mentioned the coin drop I would think the coin chute switches need scrutiny first. If the NC sides are not closed power cannot flow

pasted_image (resized).png

Williams schematics often have detailed drawings of each switch on the Score Motor that show their index (ie. Score Motor not turning) position but I'm not aware that Bally ever did. If you're concerned that something is out of adjustment on your Score Motor just turn the motor slowly when the power is off. Each switch has just two positions (open and closed), and should change from one position to the other as the pin or gap on the cam activates the switch stack.

For example, if a switch is normally closed when the motor isn't turning, it should open when the pin or gap on the cam rolls by. If it doesn't open something isn't adjusted property.

The Sequence chart on your schematic shows you when each cam on the Score Motor is active:
Bally Score Motor 3 (resized).jpg
and the annotation on each score motor switch tells you which cam the switch stack is activated by.

So for example:
The 8G Score Motor switch shown above is normally closed, and opens near the end of the Score Motor cycle (in position 6).
The 9A Score Motor switch is normally open and closes several times in the Score Motor cycle (positions 1, 2, 4 & 5).

To find the Score Motor switches on your Score Motor see:
https://pinside.com/pinball/forum/topic/sky-kings-power-free-play-and-top-hole-issue#post-4457680

/Mark

The black dots show you when things are active. So for example cam 3 (or row 3) has a black dot in position 1 (or column 1). That means that when cam 3 is in position 1, all of its switches activate or change position. Note that there are 8 different positions on the chart (0-7) representing different amounts of rotation of the score motor cams.

Think of the chart as showing when the pistons in an engine fire. In this case cam 3 fires before cam 4 which fires before cam 5, etc. The difference is that some cams fire more than once.

Yes, follow the link in reply #4 for details.

If you operate the relay manually (with the power off) by pushing the armature in so the switches activate, you should see every switch change position. That's all that really matters. If the switch is open it should close when you activate the relay; if it's closed activating the relay should open it.

If you're looking for a specific switch from the schematic, you usually need to look for the wire colors shown on the schematic. There's a table of wire color abbreviations on the schematic too.

pm sent

The schematic isn't meant to look like the actual relay.
Capt Fantastic Out Hole relay 2 (resized).jpg
The (1) switch in the schematic above is just one switch (a switch with three leaves called a make/break switch) that is activated by the Out Hole relay. There's another normally open switch (2) driven by the Out Hole relay elsewhere on the schematic. They're not anywhere near each other on the schematic even though they might be right next to each other in the Out Hole relay switch stack.

The (1) switch has three wires of different colors: green-yellow on one side, yellow in the middle and red-yellow on the other side. The (2) switch has two wire colors: white-black and blue-white.

The actual Out Hole Relay coil is a coil (3) in the schematic. One of its wire colors is blue-white which you can barely make out in your photo above.

Looks like at least one of your make/break switches may be out of adjustment in the picture of your score motor, though your best route through this is getting the hang of the schematic. I often find using a jumper wire handy to narrow down the location of an issue. Sometimes switches that are not making good enough contact cannot be diagnosed with the naked eye.

Also, I believe the drop targets score 500 individually and 3000 upon completing the bank.

You're getting closer. Good work!