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(Topic ID: 184065)

Doodle Bug Power Card Wiring Help Needed


By JOESCHALL

3 years ago



Topic Stats

  • 29 posts
  • 13 Pinsiders participating
  • Latest reply 3 years ago by Boise_D
  • Topic is favorited by 1 Pinsider

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#20 3 years ago
Quoted from freddo30:

One reason that it's critical to have correct polarity in this particular game is that a bridge rectifier is utilized to convert AC to DC in order to provide sufficient oomph to start the doodle bug feature. Incorrect switching of hot/com will destroy said bridge rectifier. The protective fuse will immediately blow and the feature will be rendered inoperative.

There is no rectifier in this game. The magnet runs off 110v directly.

#21 3 years ago

Yellow = fused = switched = hot = little spade = smooth on a two prong - the type of plug that has been in there since 1971 without incident. I would suggest you just replace like with like.

If you want to make it with a ground, just figure out which is hot on that plug and wire it to the yellow. If the spades are all the same size, you can just see which one goes in the small hole on the wall outlet. If you go this route, be sure to go back and read the 18k + posts on how to properly ground an EM. I think there are something like 17999 opinions.

#22 3 years ago

I response to your question on the ground, the green wire in your first picture is NOT on the schematic. Indeed, as you point out, it isn't attached to an earth ground at all.

In my game, this green "ground" wire only goes to the transformer case - see picture below. As such, it really doesn't do much. If you want to hook up a three prong plug and attach it to the green wire, it would be fine. It also won't really ground much of your game. Later EMs with legitimate ground wires would run it to the transformer, the door and the on/off switch metal housing. This would actually ground the lockdown bar and side rails, as they were all connected to the door via the lockdown mechanism.

Those are the facts. Opinions vary wildly on this topic. I could start a gofundme for a flooded basement and get less down votes than suggesting you leave your machine as it was manufactured.

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#24 3 years ago
Quoted from JOESCHALL:

My machine also has a marked ground wire at the transformer.

I think that is what I am pointing to with my right hand. The issue is that this is the only place the "ground" wire is. I see no value to it.

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