The two drop target bank reset coils never fire and there is no voltage at them, while the other solenoids work.
Both drop target reset coils dead: check the fuse under the playfield
Cause: A separate fuse mounted under the playfield protects just those two drop target coils, and it had blown.
Checks
- Use the manual's schematics to find every fuse in the solenoid circuits, including any under the playfield.
- Check for voltage at both coils; none at either points to their shared fuse.
- Note that grounding a driver transistor's tab only bypasses the transistor; it does not test it.
Fix
- Replace the blown under-playfield fuse with the correct value, then find out why it blew (a shorted coil or diode, or a stuck driver).
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Source: Pinball Repair help group!! (Facebook group)