(Topic ID: 202849)

HELP needed Starship Troopers / Opto issue


By DrDrain

1 year ago



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  • 4 posts
  • 2 Pinsiders participating
  • Latest reply 1 year ago by DrDrain
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#1 1 year ago

Hello dear pinside community,

I've purchased a Starship Troopers a while ago and since that I've had problems with some things.

One of it is, that the right loop-opto won't register a ball when it is rolling through.
I checked the opto assembly and the red lamp is always on (receiver side). It is supposed to only be on when a ball is rolling through. I could tell because the other loop works fine.
I bought a new receiver board but it hasn't changed anything. (red lamp still always on)
There are no obviously broken wires. (I did just roughly check them)

I do notice that the light beam of the emitter is slightly above the LED of the receiver (look at pictures). But even if I hold the light beam in front of the LED of the receiver (by hand) the opto still won't register (red lamp is still on).

Do you have any idea what could be the problem and maybe what could be a solution?

Any help is greatly appreciated!

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#2 1 year ago

Assuming that opto is like the one on south park, which I'm almost certain it is, it should always be slightly glowing. It's not actual glow, it's the red beam being picked up by the receiver. It's not the problem. Start by taking the emitter from the one that works, and pairing it up with the new receiver board. Make sure that works. If not, the problem isn't in the boards, and is probably in the wiring.

#3 1 year ago

Thanks CadillacMusic

I noticed when pairing the emitter of the left loop with the receiver of the right loop (new one), that the receiver itself is fine.
But the emitter of the right side seems to be a lot less bright than the one on the left.

I'll order a new one and see if that solves my problem.

#4 1 year ago

I built the new emitter in yesterday.
The opto works perfectly now!
Must have been the weak light of the old emitter!
Thanks for your participation!

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