Check with Jim at Midwest slots.

You may have a bad senet buffer chip on your MPU board then if the cabinet I/O board didn't fix it.  Usually (but not always) when the senet buffer chip goes you get both a meters disconnected and coin-in jam error.  It's not easily replaceable unless you have equipment/skills to replace SMD components.

Glad you found the problem  

Hey Joe,

WOW, thank-you for the info!! Although I'm not sure what you mean by the "pinwheel" being locked or not? I am aware of the longer screw and marked the location on the disc accordingly. However, as shown in the attached pic, there's another screw installed that has a metal "stop" sticking inward similar to how the longer screw would be. Any thoughts on why? Or are the two longer screws supposed to "trap" the rod that turns the agitator?

Per your request, I've added a few more picks of the machine. (I do have all the missing parts that aren't shown)

As I mentioned in another posting, I suspect a relay or two is bad and will be bench testing them in the near future. I also suspect that the handle operation has been modified as it doesn't appear to have a lock-out mechanism that I'm familiar with from other machines I've worked on. (pic included) I.E. the handle can be pulled at anytime, coin-in or not.

Thanks again so much for the help & feedback! 

Best Regards, Lance

This is the ground wire and it is attached to the buttons.

Lance,

That is a Bally hopper with a coin shelf and pinwheel sized for Ike’s. The 3 point agitator would be correct. Search “Bally agitator” on EBay and you’ll find what you need. When installing the agitator, you’ll find one of the screws is longer than the other 2. That is by design and that screw acts as a stop to keep the pinwheel engaged with the motor. If the pinwheel can be rotated by hand more than an 1/8” or so, it’s not locked in. Can you share a picture of the complete machine? I’d like to see what you’re working with.

Joe