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(Topic ID: 121462)

Playfield lights "flickering" on El Dorado, City of Gold

By njPinWiz

5 years ago

Topic Stats

  • 12 posts
  • 6 Pinsiders participating
  • Latest reply 5 years ago by njPinWiz
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#1 5 years ago

Just picked up an nice, very clean El Dorado City of Gold. Everything seems to function as it should, with one bothersome exception. During play, and only occasionally - the play field lights "flicker" in unison. It might last a few seconds, or up to a minute or so. When a new game is started, the lights behave normally...then a few games later, the flickering occurs again.

I tried to re-seed all the connectors, but that didn't resolve it. I am hesitant to touch any other connectors until I can isolate which ones might be the cause - I don't want to cause other problems in the process.

Anyone familiar with Gottlieb System 8A, and can suggest which specific connectors/boards might be the culprit? Thanks!

2 weeks later
#2 5 years ago

An update: I replaced the LEDs corresponding to the 10 drop target bank at top of playfield and the 5 drop target bank on right side of playfield with #47s. It seems to have solved the "flickering" problem. I didn't replace the LEDs for any of the rollover lanes or the bonus ladder. But for now, everything seems stable.

4 weeks later
#10 5 years ago

Thanks for all the update: replaced all the LED playfield lights (except those under the plastics) with #47s and the problem has gone away.

#12 5 years ago

I can't explain technically - over my head for sure, but with the LEDs installed they would flicker regularly. I replaced all of them with #47s and they no longer flicker. The playfield is not as bright as it was w/LEDs but the lighting is more even & the flickering has stopped.

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