At game start the reels don't all return to zero and the main stepper keeps stepping even when the reels show zero. Players 1 and 2 have the most trouble after a 3 or 4 player game.
Score reels won't all reset and the stepper keeps running: one zero switch
Cause: The zero-position switch on the player 4 hundreds reel was not opening all the way at zero. That held the Z2 reset relay in, so Z1 (which resets players 1 and 2) never got to finish.
Checks
- With the schematic, follow the reset chain for each bank of reels.
- Check every reel's zero switch opens fully when its reel shows zero, including reels that look fine.
- Check the score motor switches and their guides for stuck or misaligned blades.
Fix
- Adjust the zero switch so it opens fully at zero.
EM games have live switch contacts; switch off before adjusting.
Systems
Games
Related tips
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- EM score reel will not reset to zero
Source: Pinball Repair help group!! (Facebook group)