Pop bumpers and flippers work, but the drop target reset coils and the left-side kickers get no power. Fuse F2A blows again as soon as it is replaced.

Fuse F2A blows and drop targets/left kickers dead: knocker coil and broken relay tab

Cause: Two faults together: a shorted knocker coil was blowing F2A, and a broken tab on a relay was cutting power to the drop target and kicker coils (their supply wires, J11-4 and J12-11, read 0 V even though the relay clicked in coil test).

Checks

• Unplug coils on the blown fuse's circuit one at a time until the fuse holds; here unplugging the knocker stopped it blowing.
• Measure voltage at the coil supply wires; 0 V with the relay clicking points at the relay contacts.
• Inspect the relay's contact tabs for a cracked or broken tab.

Fix

• Replace or repair the shorted knocker coil (check its diode too).
• Repair or replace the relay with the broken tab.

Games

• Jokerz!

Related tips

• Outhole kicker locks on whenever the service menu is entered: bad 7408 at U20

Source: Pinball Repair help group!! (Facebook group)