(Topic ID: 202601)

Data East Hook coils weak (not flipper)

By arcadeforever

4 years ago



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  • 4 posts
  • 3 Pinsiders participating
  • Latest reply 4 years ago by Colsond3
  • Topic is favorited by 1 Pinsider

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  • Hook Data East, 1992

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#1 4 years ago

I am working on a Hook. 2 of the 3 - 32v coils are REALLY weak (Drop Targets and Trough Eject) the third (Outlane) is fine. All coils are getting the 32v and I continuity tested between the harness connector on the power supply (unplugged) to see which coils were on which power line. I see the Outlane and the Trough eject on the same line, so I don't think power is the issue. I replaced the Trough eject coil just for fun and I get the same results.

Attached is an excerpt from from the schematics. I drew on it to try to make sense of it, but I just don't see why its doing it.. Anyone have any ideas?

20171112_180235.jpg

#3 4 years ago

Thanks Wayout, after much more troubleshooting, I found that the transistor on the main board was bad. The back of the board is trashed, so it could very well have been a connection to ground also.

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