Hitting a drop target registers as the spinner, and during the drop target event the target keeps registering hits.

Drop target reads as the spinner and keeps scoring: an added link wire

Cause: While the assembly was off, a 'missing' wire had been added between two switch lugs. It bridged two lines of the switch matrix.

Checks

• Compare the switch wiring with the manual's switch matrix before adding any link; switches on different rows or columns must not be joined.

Fix

• Remove the added wire.

Systems

• Gottlieb System 3

Games

• Shaq Attaq

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