Running the gun calibration from the menus goes on for half an hour and the cannon never moves. The flashers don't work either.
Gun calibration never finishes and cannon won't move: check fuse F111
Cause: Fuse F111 on the power driver board, which feeds the 20 V flasher circuit and the gun motor, had failed even though it looked good.
Checks
- Check whether the flashers work; if they are dead too, suspect F111.
- Test the fuse out of its holder, or simply swap in a new one.
Fix
- Replace fuse F111, then find out why it blew (for example a short made while changing bulbs under the playfield with the power on).
Systems
Games
Related tips
- F111, F112 or the line fuse keeps blowing
- WPC-89/WPC-S driver board fuse ratings
- WPC power driver board fuses and what they feed
- Which fault blows which driver board fuse (WPC-89/WPC-S)
- Typical causes of each blown fuse (WPC-89 and WPC-S)
- Fuse F116 keeps blowing
- Finding whether a blowing fuse is a board or wiring fault
- Switch matrix fuse F115 (F101 on WPC-95) blows as soon as it is replaced
Source: Pinball Repair help group!! (Facebook group)