(Topic ID: 71622)

FT left flipper stuck in 'UP' position (EDIT: Fixed!)

By VolunteerPin

10 years ago


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#7 10 years ago
Quoted from VolunteerPin:

Turn off the game and flipper goes back to normal.
Turn on the game and flipper is fine until I hit the start button or go into the menu system.

And this is why details are important. That is not a shorted transistor. If it requires pressing start, most likely cause is the flipper opto switch is stuck in the on position. Debug it via switch edge test. There you can tap the flipper buttons and see it react on the screen. If the flipper that's stuck on has its switch stuck on there then you know. From there, track it down to the switch itself, the switch wiring, etc.

#11 10 years ago

Yes sounds like issue is that the left flipper switch is stuck closed. If this is a standard opto, possibly the plastic interrupter has broken off. If its a leaf switch perhaps the blades are touching.

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