Locomotive D51 stuck in the station...

[machgo]

Hello all, new to Pachitalk but have been lurking and have a growing collection of pachinko machines.

My latest acquisition is a fair bit different than any of the others I have, and quite frankly I have no idea how it is supposed to function. It is a Nishijin D51, locomotive themed machine. Based on what I read and viewed, it is a B type Nishijin.

It came with what I assume is a transformer, and an AC plug. There is also another hunk of vintage electronics which probably does not work. My guess is that it powers the lights behind the locomotive center attraction as well as the solenoid which operates a gate which is part of the center attraction.

I can power up the unit, and the jackpot light and low ball light seem to work correctly. Other switches, mentioned below, don't seem to do anything. I took a voltage reading at one of the light bulbs and it seems the machine runs on 13 volts AC...??? I get no reading when my multimeter is set to DC...

Here are my main questions, at the moment:

1. What makes the solenoid fire? i.e. which target needs to be hit?

2. There is a micro-switch in the center attraction--what does it do?

3 There is a micro-switch at the very end of the ball path which is made whenever a jackpot ball exits the machine--what does it do?

4. Like most pachinkos, there are 2 tulips directly below the main attraction, with the top one inaccessible to balls unless open. This machine has the same setup, but there is no apparent path through the center attraction to open the tulip in the first place...if it matters, the tulip directs the ball to the right as one faces the machine. I have a sneaking suspicion 2 or more tulips have been swapped...

Any and all help appreciated. Pictures to be uploaded later.

Thanks in advance!