(Topic ID: 206424)

Poor man's Stadium lighting

By Fytr

3 years ago

Topic Heartbeat

Topic Stats

  • 911 posts
  • 173 Pinsiders participating
  • Latest reply 22 days ago by sushko
  • Topic is favorited by 282 Pinsiders


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#854 10 months ago

OK, so working with AUKraut, we added a set to my Gottlieb Robo-War. While I really like it, we noticed that there was 2 odd things happening on this particular game:
1) Even with the rectifier added, the LEDs strobe from time-to-time. Weird thing is, it isn't doing it all the time. It seems to come and go.
2) The LEDs never seem to turn all the way off. Even with the game sitting un-powered, the LEDs stay lit at around 5% power. I'm wondering if there's something in the Gottlieb circuit that is applying the smallest amount of power to the GI circuit at all times?

Any thoughts from the community here? Overall, I'm very happy but would love to do something to eliminate the strobing completely.

#856 10 months ago
Quoted from bluespin:

This is a Gottlieb 80 series pin. Have you done the recommended grounding mods? Lack of grounded boards from the factory cause all sorts of random electrical problems with 80 series pins.

Oh yes, I'm quite familiar. Every grounding mod possible has been done and a new cap is on the original power brick.

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