(Topic ID: 202601)

Data East Hook coils weak (not flipper)

By arcadeforever

4 years ago



Topic Stats

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

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Linked Games

  • 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

#2 4 years ago
Quoted from arcadeforever:

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?

Voltage is fine, sounds like a current problem. Coils that are the same voltage are daisy chained usually, so the problem can even be at one of the fully working coils - perhaps cold solder, frayed wire, cracked or improperly soldered connection. (assuming you know the game worked at one time and is now failing, check to make certain the proper coils are installed if you aquired it and it had the problem) So you might want to take a closer look at the supply side of the coils

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#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.

#4 4 years ago

Or perhaps it's just the technician.

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