(Topic ID: 201353)

Met sparky flaky opto switch? Help!!


By Mfsrc791

3 years ago



Topic Stats

  • 18 posts
  • 7 Pinsiders participating
  • Latest reply 3 years ago by cooked71
  • No one calls this topic a favorite

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#1 3 years ago

My met pro sparky opto switch goes of randomly throughout the game. Idk why some times it has streaks where it goes of a bunch of times and then it won't for a while. I finally switch test and I can't replicate it. The opto switch works fine. Any way to adjust??

#2 3 years ago

Reseat all of it's connectors for the opto a couple times. That should clear it up.

LTG : )

#3 3 years ago
Quoted from LTG:

Reseat all of it's connectors for the opto a couple times. That should clear it up.
LTG : )

It tried reseating them and it's still acting up. It's gotten worse overtime. At one point, Everytime I hit the flipper it set off sparky opto

#5 3 years ago
Quoted from Mfsrc791:

It tried reseating them and it's still acting up. It's gotten worse overtime. At one point, Everytime I hit the flipper it set off sparky opto

Hmmm. Haven't checked schematics with the flippers and Sparky opto, but run the wires and make sure there is no short. Check any boards in common, or contact Stern for a new opto for Sparky...just what I'd try.

#6 3 years ago

Thanks for the responses. I'll try your suggestions tomorrow. Game has less then 500 plays so I hope the opto isn't already bad.

Sucks, I had 410 mil on my first ball then I realized how bad the opto was when I hit the flipper button So I just reset the game lol.

#7 3 years ago
Quoted from Mfsrc791:

I hope the opto isn't already bad.

You can always reflow the solder on optos or connector pins. And any nearby IDC connector, be sure the wires are pushed in tight.

LTG : )

#8 3 years ago

I had the same problem on my premium. It turned out to be the right side metal divider with the hole cut into it was being bent backwards a little and just enough to partially interrupt the beam of light. Bent it back upright and it's worked fine since.

#9 3 years ago
Quoted from bonzo442:

I had the same problem on my premium. It turned out to be the right side metal divider with the hole cut into it was being bent backwards a little and just enough to partially interrupt the beam of light. Bent it back upright and it's worked fine since.

^^^
Definitely sounds like a beam-breaking issue. Make sure is aligned properly and nothing is in the way. If it's aligned such that the beam is only just catching the receiver, then the slightest vibration will push it off the edge, break the signal and trigger the switch.

#10 3 years ago
Quoted from bonzo442:

I had the same problem on my premium. It turned out to be the right side metal divider with the hole cut into it was being bent backwards a little and just enough to partially interrupt the beam of light. Bent it back upright and it's worked fine since.

Quoted from TimeBandit:

^^^
Definitely sounds like a beam-breaking issue. Make sure is aligned properly and nothing is in the way. If it's aligned such that the beam is only just catching the receiver, then the slightest vibration will push it off the edge, break the signal and trigger the switch.

Awesome thanks guys! Pinside is the best. Just stuck at work on a Saturday unfortunately so I won't be able to try anything yet.

#11 3 years ago

Are you sure its the opto? Could it be the switch between his feet?

#12 3 years ago
Quoted from robotronjohn:

Are you sure its the opto? Could it be the switch between his feet?

I checked that switch and it's not even close to touching contacts. That's what I was originally hopefully it just was.

(Wow just noticed my auto correct of opto to option in the title lol)

#13 3 years ago
Quoted from bonzo442:

I had the same problem on my premium. It turned out to be the right side metal divider with the hole cut into it was being bent backwards a little and just enough to partially interrupt the beam of light. Bent it back upright and it's worked fine since.

Ding ding ding!!!! I just bent the ball guides next to sparky in a little with some plyers and it's all good. Sometimes it's just the simplest solution that's right. Thanks!!!!

#14 3 years ago

I will remember this if my Sparky starts flaking out. Thanks for the follow up on what the fix was.

2 months later
#15 3 years ago

My Sparky optos start going off randomly at times, then stop working all together. Re-seated the opto board connectors which helps for a few games, then it starts again. Any ideas?

#16 3 years ago

I had the same problem on my premium. It turned out to be the right side metal divider with the hole cut into it was being bent backwards a little and just enough to partially interrupt the beam of light. Bent it back upright and it's worked fine since.

#17 3 years ago
Quoted from bonzo442:

I had the same problem on my premium. It turned out to be the right side metal divider with the hole cut into it was being bent backwards a little and just enough to partially interrupt the beam of light. Bent it back upright and it's worked fine since.

Thanks. I'll give it a go. Did yours stop working completely though?

2 weeks later
#18 3 years ago
Quoted from cooked71:

Thanks. I'll give it a go. Did yours stop working completely though?

Found out I had a flaky opto transmitter - just the solder joint for the bulb was bad. Re-soldered and haven't had a problem since.

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