(Topic ID: 67529)

Space Shuttle GI Short problem ... Please Help.

By futurepinhead

10 years ago


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#31 10 years ago

You GI issue may be the giant yellow AC plug in the bottom of the cabinet. It supplies the AC voltage to the power supply board. The plastic and pins on this plug get warm/hot and always deteriorate. While the game is on, try unplugging and plugging back in and wiggling around this 4 pin connector. It may point you to the problem.

#52 10 years ago
Quoted from futurepinhead:

Would that still be the problem if I am only missing half of the GI?

It could very well act just like this. Two pins shorted, the other two pins not shorted. However, after re-reading the posts in this thread, it is not likely your problem.

The four plug connector I'm describing has 4 pins (probably white+white yellow); two pins for each 6.8 VOLTS AC line. It is the main source for the GI light power in nearly every SS pinball machine. It's worth checking to make sure that plug isn't crispy/melted/shorted at this "source" connection. Otherwise, the short will be further upstream like the power supply board or, the GI strings on the playfield itself, as vid1900 has suggested.

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