PINBALL REPAIR : FIXING METALLICA LE/PREMIUM COFFIN MAGNET
While playing a game on my Metallica LE pinball machine, I noticed that the magnet which usually grabs the ball for the coffin multi-ball was not working. The ball would register hits on the block of the hammer, but never actually activate the magnet to lock a ball. Upon researching the pinball machine and looking at the board under the play field that controls the magnet and the locks, I decided to remove the magnet mechanism for the coffin lock from the game. After removing the mechanism, I noticed that one of the two wires coming from the magnet which were zip tied had broken in half. The constant rub of the wires on the bracket caused the cabling to break. The reason the magnet did not work is because power was not getting to the actual mechanism to lock the balls.
I decided to cut the cabling from the magnet, resolder the wires that I removed from the mechanism earlier and apply shrink wrap to protect the wiring. Next, I attached the mechanism to the underside of the play field and tested the game. The magnet worked again after reattaching the wires.
Lesson here is don’t always think it is going to be a fuse or the magnet board located under the play field when the coffin multi ball magnet is malfunctioning. It could be the wire coming from the mechanism causing issues. You maybe soon having to do the same repair I had to do today.