Ok so today was a day of ups and downs.
Game booted but I had many issues to sort.
A GI string was out. This turned out to be yet another broken wire in the harness took some time to find.
I have row 8 on the jamp matrix out. Turns out a rogue 48v wire made unwanted contact...
It's killed something on my spare power driver board, maybe Q drivers I bet. Possibly the chip on the MPU too. I would hasten to add my afterglow board.... Sigh at least I found it.
The right gear box is a bit whiney on the canon I may need to replace it or try and crack it open...
Had a duff bayonet where the rubber o rings between each leg had got too thin/weak it and was making contact. Killed a diode.
Had to strip back the subway system and re-organise the lamps they were in the wrong order. Next time I do one of these I'm labelling them!
Updated pics in case it helps anyone in the future.
The 4 coils not firing was down to me not plugging in j103

. Thanks to my mate Simon for actually figuring that out.
Here's a video of the game.
View attachment VID-20251024-WA0041.mp4