Flipper Blowing Fuse on a Williams 1973 Gulfstream

(Topic ID: 211898)

Flipper Blowing Fuse on a Williams 1973 Gulfstream


By Jerky2pinball

8 months ago



Topic Stats

  • 3 posts
  • 3 Pinsiders participating
  • Latest reply 8 months ago by HowardR
  • No one calls this topic a favorite

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#1 8 months ago

I have an EM 1973 Williams Gulfstream that seems to play great except it blows the 15amp 24volt fuse every time the left flipper switch is pushed.

Seems like there is a short, because it blows fuse as soon as contact is made. I don't see anything wrong with wiring and flipper is free moving.

It does have a bridge rectifier....

Any ideas???

Thanks,

Don

#2 8 months ago

Check out that everything is solid on your Lock relay.

#3 8 months ago
Quoted from Jerky2pinball:

it blows the 15amp 24volt fuse every time the left flipper switch is pushed.

Hi Don,

The left flipper button has 2 switches behind it.
One switch has a Black&Orange wire and an Orange&Black wire. That switch activates the Lock relay on the schematic at 4E
The other has a Black&White wire and a Yellow wire. That switch activates the flipper.

You can find out which circuit is causing the problem by putting paper in between the contact points.
As currieddog points out, most likely the Lock relay coil is fried and needs to be replaced. You can test that coil with an ohmmeter.

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