Time Machine
Data East, 1988You're currently viewing posts by Pinsider doctor_pinball.
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regarding pop bumpers and slingshots coils,first check if the coils receive the aprox 50 V dc ( coils are actuated by drive them to ground via TIP122) if the 50 v dc is present and the TIP122 are OK you might have one 7402 IC blown out after a major burn of TIP and 2 N transistors
if the 7402 Ic s are ok next step is PIA 6821
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Bucharest
Clinton Twp, MI