Tech Help: Leaf Switch Causing Game To Reboot


By PBaller22

2 years ago


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  • 4 posts
  • 2 Pinsiders participating
  • Latest reply 2 years ago by LTG
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#1 2 years ago

Greetings all,

I have a JY machine that was working normally, then one day decided to randomly reboot during play. Troubleshot the problem enough to determine that it's happening when a certain leaf switch is triggered on a standup target in the crane area. When it happens, a sound effect actually plays and then DMD flashes "raindrops" (at least that's what I'm calling it...random diagonal lines evenly spaced across the DMD). Flippers go dead...almost like it's a tilt. Then when ball re-enters the trough, it starts up again. Plays fine until that standup is hit. Any ideas why a leaf switch would cause a game to reboot when it makes contact?

#2 2 years ago

Could be that switch, or others.

Look your switches over. Be sure they are wired right, diode facing the right direction, and nothing is shorting switch wiring.

LTG : )™

#3 2 years ago

Gotcha. I recently attempted to replace a different switch, which was unsuccessful (in that after I did it the switch still didn't work). My guess is that the diode on that one is going the wrong way. The problem didn't start until I replaced that switch. Seems like a good place to start at least. Thanks, Llyod!

#4 2 years ago

Start there. Look at it. Williams used a basic wiring scheme. White wire there ( and what ever color stripe ) and with black end of diode. Green wire there. Silver band end of diode there.

Same on every switch, so easy to compare to others.

LTG : )™

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