Saucer, drop target and side awards of 500 or 5,000 sometimes score only part of their value, and after bonus count the game may skip players before kicking out a ball.
500 and 5,000 awards not scored in full: check score motor hold switch
Cause: A normally closed hold switch on the score motor (5B in this game) that keeps the scoring relays energised for the whole sequence was dirty, misgapped and its stack was loose, so the relays dropped out early.
Checks
- Note whether all the faulty features share the same score motor sequence.
- Check the score motor switch stack is tight and the hold switch stays closed through the full cycle.
Fix
- Tighten the switch stack, clean the contacts and re-gap the hold switch.
Turn the game off and unplug it before adjusting switches in the cabinet or backbox; EM games carry line voltage and the score motor can move unexpectedly.
Systems
Games
Related tips
- Reset relay stays locked on after scores reset: loose zero-switch arm on a score reel
- EM: outhole kicks the ball back only once per game: dirty score motor index switch
- 10 points and 500-plus-bonus don't score: dirty score motor switch 1C
- Ball not kicked out of the outhole at game start: score motor 1D switch
- Score motor overruns or freezes: worn home switch
- Gottlieb score motor overshoots: brake switch
- 1000-point relay, ball index and chime lock on: dirty score motor switch
- Check the score motor switches before power-up
Source: Pinball Repair help group!! (Facebook group)