Pressing start doesn't kick a ball out unless a ball is already sitting in the top right saucer.
Game won't serve a ball unless one is in the saucer: trough switch diode
Cause: A broken diode on the second trough switch, plus a trough switch that was gapped wrongly, so the game miscounted the balls.
Checks
- Check every trough switch in switch test as balls are added.
- Check the diode on each trough switch.
- Make sure the number of balls matches the balls-per-game setting.
Fix
- Replace the broken diode and re-gap the trough switches.
Systems
Games
Source: Pinball Repair help group!! (Facebook group)