Alltek Trifecta Phantom Coil Fire

(Topic ID: 220088)

Alltek Trifecta Phantom Coil Fire


By dyopp21

5 months ago



Topic Stats

  • 2 posts
  • 2 Pinsiders participating
  • Latest reply 3 months ago by Colsond3
  • Topic is favorited by 1 Pinsider

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    #1 5 months ago

    On the last couple of games I’ve restored I’ve noticed that I get an occasional random firing of a particular coil. I have installed the Alltek trifecta in many games but have only seen this on the last couple. On Supersonic one of the pop bumpers will fire during gameplay, and the same goes for the left sling on Black Pyramid. I would assume that would be switch related but in both cases there is no score added when the coil fires as I would expect with a switch closure/malfunction.

    I also notice that this seems to happen often right after the ball has been ejected into the shooter lane.

    I’m stumped.

    2 months later
    #2 3 months ago

    Did you ever get this taken care of? If not, did you test the corresponding transistors on the driver board, and possibly reflow that board or at least make sure there were no cold/cracked solder joints?

    Sadly, I’ve had some issues like that even with reproduction boards. Check the fuse clips on the PSB also. I’ve also had some of those be weak and break off right out of the box.

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