Restoring Robotron cocktail wiring

hackbar

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I have a Robotron cocktail I'm restoring with the original boards and wiring. I've picked up a replacement transformer, power boards and wiring harness (I think the harness is from a Defender).

The transformer has two plugs, one 3x5 pins, and one 12-pin flat (picture 1). The schematics show the power board should plug into the transformer, but it only has a 15-pin flat connector. The wiring harness has a 3x5 pin connector, but I don't think it's the right one. It goes to the power switch, but I don't see another 15-pin flat connector to plug into the power board.

What am I doing wrong here? Do I have the wrong boards or wiring? Anyone have some good pictures of their Robotron cocktail wiring?
 

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It seems that the cocktail transformers are the older style, and so the flat connector plugs into the power board leaving 3 pins unconnected. I plugged mine in and it works.

It looks like my cabinet has some marks on the bottom like the transformer and line filter were screwed directly to the bottom of the game, instead of on the white piece of wood. Was this common?

Also, how does the sound board mount? Is there another metal plate?
 
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