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Thread: X Files Sega transistor issue

  1. #1

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    X Files Sega transistor issue

    Have found my Q1 transistor associated with the trough up kicker coil keeps blowing out. Swapped a good tested driver board that lasted for a few days only. Tested coil for ohms ok also swapped out coil diode with no luck so far.
    From what I've been reading these older deleted transistors, the 20N10L, wasn't the best and the recommended irl540n is better but will that be enough? What other things should i consider? Could the opro switch associated with this coil have anything to do with it? It appeared to check out ok also. Any suggested would be great thanks.

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    Try changing the coil , it may have an intermittent short that is blowing the transistor.


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    Is the plunger sticking causing the tranny to overheat?
    My pins: Wild life EM, Top Score Em, Space Mission EM, Target Alpha EM, Cleopatra SS, Pin*Bot SS, Indiana Jones WPC, Black~Rose WPC.
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    Quote Originally Posted by Gemini2544 View Post
    Is the plunger sticking causing the tranny to overheat?
    No it seems to be moving freely. Tested coil for ohms and so on but changing it might be worth a try id say.

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  5. #5

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    you could try a 1n5404 diode on the coil instead of the standard 1n4004

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