sounds like the magnet diode is wired backwards.
Edit: Nevermind ... Was thinking Whitestar :/
(Topic ID: 254299)
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Metallica (Premium)
Stern, 2013-
The Walking Dead (LE)
Stern, 2014
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The Walking Dead (Premium)
Stern, 2014
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Quoted from zaza:I have no manual of the Walking Dead
Here you go:
https://sternpinball.com/wp-content/uploads/2018/11/Walking-Dead-LE-Manual.pdf
Quoted from kvan99:I hope the IRL540N is compatible part
The IRL540N should be a good replacement for the now obsolete STP22NE10L.
You may want to double check D6 and D7 are still in the circuit after replacing the transistors. IMO, your symptoms are just too similar to a failed/missing flyback diode to ignore.
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