(Topic ID: 230805)

Can bent pin cause sporadic problem?

By topkat

4 months ago

Topic Stats

  • 18 posts
  • 5 Pinsiders participating
  • Latest reply 4 months ago by topkat
  • Topic is favorited by 1 Pinsider


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bent pins (resized).jpg
image (resized).jpg
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#1 4 months ago

I have been long chasing my Dirty Harry magnet save being inconsistent on grabbing the ball. (New opto, new core)
Just replaced mushroomed
Core and had hoped that would do it. I looked at the connector for the magnet power (j907) and the pins that correspond to the magnet are bent. Can that be the issue?

image (resized).jpg
#2 4 months ago

Yes, two on the top side look like they have a little burn too.

LTG : )

#3 4 months ago

So what s best course. Replace the Male connector pins only or should that follow with the female as well

#4 4 months ago

Always replace both male and female pin pairs together.

1 week later
#5 4 months ago

I got a new fliptronics board, switched it out and the magnet still doesn’t power on during magnet test. The door is closed, roll the ball opto closes and magnet nothing..
what else could there be? Is it possible the opto closes but doesn’t get the info where it needs to go?

#6 4 months ago
Quoted from topkat:

I got a new fliptronics board, switched it out

Did you replace the connector too ? It may have been damaged by the bent pin.

LTG : )

#7 4 months ago

No.. it looked ok?
But at least there’s something else to try

#8 4 months ago

What about the ribbon cable that goes across?

image (resized).jpg
#9 4 months ago

You got some more bent pins.

bent pins (resized).jpg
#10 4 months ago

That’s the ribbon cable? So I assume just replace the cable won’t matter
Does that cable carry the signal that that opto has been closed and then to fire the coil?

#11 4 months ago

These bent pins won't cause the magnet problem but should be fix at some point.

#12 4 months ago

are those replaced as a unit, (ribbon header) or can you section out?
def will add to my fix it list

#13 4 months ago

You can section it out if you can cut the plastic without damaging the board.

#14 4 months ago

Transmitter or receiver or both?

#15 4 months ago

I almost certain we replaced both were replaced( we replaced 2 optos at the time). IT was such a hassle to get to it, it seemed better to both to be sure.
In all the tests, the opto seems to be working

#16 4 months ago

I rarely see a receiver opto fail in any game. The transmitters are basically IR LEDs that do burn out over time.

#17 4 months ago
Quoted from topkat:

inconsistent on grabbing the ball

Can you describe the behavior a bit more? Or add a video?

Generally, the magnet should have no problem pulling a ball that is an inch from the center of the magnet, but beyond that, it may not especially if the ball if traveling fast.

#18 4 months ago

When I go into test mode, it says roll the ball up the loop (door closed). there are 2 boxes on the dmd, one says opto one says magnet. when the ball passes the opto it beeps and puts an "x" in the box. but the magnet never functions. In solenoid test, I can hear a pulse of the magnet..
It would work sporadically in game.
I changed the magnet core, and it didnt help at all. I switched out the fliptronics board just yesterday and now in game it doesnt grab it all.
I ordered new connectors, so I can switch out the female that connected to the bent pins. also ordered a new magnet coil to try.
please let me know if that helps

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