Just got TOTEM working after years in storage. Gottlieb System 1 with the older, original Ni-Wumpf MPU. Game plays great except that the tilt is very unresponsive. The game will tilt, but it takes a hell of a smash to get it to trigger. If you bang the bob into the brass ring it will not tilt. If you bang it repeatedly it will tilt. If you push the bob into the ring by hand it will tilt. But in normal game play, if the bob hits the brass ring (quickly) it will not tilt. All the connections between playfield and MPU are good and clean. I disassembled the plumb bob, brass ring, and rod. Cleaned and polished all the bare metal. Even replaced the bob will a brand new one. Same results.
I read another post where OP had exact same problem. He thought the Ni-Wumpf is not sensitive enough, or doesn't strobe fast enough to pickup the tilt. He was thinking to install a capacitor like Bally does on switches. Not sure what he ended up doing. Results were never posted on the site.
I emailed Ni-Wumpf wondering if there was a software update or sensitivity adjustment but was told "no". Not their problem.
Anybody ever had this problem or know a solution?