Medieval Madness Remake (MMR) > MMR Support [MMR Members Only]

Slam tilt switch is stuck closed

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jonny_eh:
I had the same issue, open the switch on the bottom left of the cab, near the plumb bob, as others have pointed out.

clavigne:
I actually had checked both of those before I posted the message.  They are both open and neither one works when I do the switch edges test.

Lloyd Olson:
Even if both are open, there may be a short between the blades of along their wiring.

Please follow them up to the big board under the playfield they plug onto and unplug them. First one then the other. Then you'll know if it's a board issue or wiring switch issue.

LTG : )

clavigne:
Thanks Lloyd, I'm having a hard time finding where they plug into the board under the playfield.  As far as I can tell they only run to the controller board in the back box.  Like I said, when I disconnect the coindoor harness from the controller board in the back box then the error goes away as expected.  I've searched the board under the playfield and the schematics for switch 21 (the slam tilt switch that is giving me the error) and I can't find it.  The wires from the switch seem to run directly to the backbox unless I'm missing something, which is totally possible since I'm definitely not a pinball tech.  In the manual on the switch table, it says "Cabinet switches are read by controller board".  Does this mean that the slam tilt switch only runs directly to the controller board and isn't connected to the board under the playfield?  Perhaps this is a difference from the original MM?

Lloyd Olson:
You are right, they are running to the controller board.

Any wires pinched when you raised the head up ?

LTG : )

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