Games with an upper flipper switch on the EOS stack
Some games stack a second switch on the lower flipper EOS to fire an upper flipper. When fitting WPC-style mechanisms, take the stack apart, put the EOS switch on the inside of the bracket and the upper flipper switch on the outside; a slight bend makes it fit.
Systems
Related tips
- Most flipper faults are EOS switch faults
- EOS switch must be normally closed with tungsten contacts
- Right flipper too weak for the top lock after a rebuild: lighter return spring
- Firepower right flipper switches sit close to the pawl: a short kills the switch matrix
- Flipper fuse blows
- Where flipper power comes from
- Measure a flipper coil
- Flippers dead after long storage: corroded button and EOS contacts
Source: Repairing Williams System 3 to System 7 Pinball 1977 to 1984, Part Three, Clay Harrell (pinrepair.com)