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Art.nr: FP-520-6801-00
Stern METALLICA LE & PREMIUM models pinball machine Magnet Processor board.
Stern Service Bulletin #182
Subject: Metallica L/E and Premium machines. New firmware for the magnet processor board along with software version V1.22 or higher optimizes the hammer/magnet feature.
Symptoms: False hammer strikes. Or the magnet will grab and hold the ball for a brief moment and release it without the hammer and disappearing ball mechanism activating.