After the playfield is put back together, no playfield optos register, the trough ejects every ball at game start, the crane and Deadworld motors do nothing, and a lower flipper's opto doesn't register. Lamps, flashers and coils all work.
After playfield work: optos, crane and Deadworld dead, trough dumps balls (J116)
Cause: A wire had broken off at the back of the 12 V connector J116 on the power driver board, so the optos and motor circuits lost their supply.
Checks
- Check J116, J117 and J118 on the power driver board, looking at the back of each housing for broken or pulled wires.
- Confirm the opto boards are getting 12 V.
Fix
- Repair the broken wire and repin the connector, then retest the optos and motors.
Systems
Games
Related tips
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Source: Pinball Repair help group!! (Facebook group)