Any hit on the jukebox targets registers several switches at once. The CPU checks out, the switch diodes test good and lifting the switch capacitors changes nothing.

Hitting the jukebox targets triggers several switches: blade touching its mount

Cause: A switch blade was touching its metal mounting bracket, shorting the matrix line.

Checks

• Check for continuity between each switch blade and its metal mount; there should be none.

Fix

• Bend or reinsulate the blade so it cannot touch the mount.

Systems

• Bally 6803

Games

• Party Animal

Related tips

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