(Topic ID: 310006)

pop bumper locked on (Jurassic Park, Data East - 1993)

By mech-eng-noob

2 years ago



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#2 2 years ago

Test/replace the little pre-driver transistor (2N4401?) associated with Q8. I always replace both this one and the main one when fixing a locked coil.

https://www.pinwiki.com/wiki/index.php?title=Data_East/Sega#Solenoid_Issues

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