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(Topic ID: 189547)

EBD- Shuts down when coils fire


By policano

3 years ago



Topic Stats

  • 2 posts
  • 2 Pinsiders participating
  • Latest reply 3 years ago by Majdi
  • Topic is favorited by 1 Pinsider

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#1 3 years ago

Hello,

I have an EBD on location. She has been a solid runner for years and the bowlers love the game. I think it reminds them of a time back when they were new. Its pretty cool to hear stories from way back when.
Anyways, I started having issues with the game where you would be playing and it would die mid game but a reboot would bring everything back and it would go weeks.
Yesterday when I was troubleshooting after it was off I powered it back up, started a game and flippers were working fine, as soon as it hit a coil (any pop bumper or sling) everything would die except the GI.

I have an altek MPU board, and I did replace the bridge rectifiers.

im not sure where to start or what I should be looking at.

Any advice would be greatly appreciated.

#2 3 years ago

Check the 5V test point, measure AC and DC volts.

If the large filter capacitor has died, it won't have enough juice to survive the coils firing and pulling the transformer secondaries down.

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