Quoted from oldpins:I do have this title in my collection. You will find that the 'Blue' wire connects directly to the 'Hold' Coil. This will energise the coil which is then latched through the leaf contacts. In your bottom photo you can see where the blue wire has been cut away from the coil lug.
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Yep, without having the game in front of me, that would have been my guess. Right to the coil itself.