So I was playing pinball last night, and I noticed that I was getting shocked due to an interesting situation. A bit of back story:
I have been restoring a Flash, and I recently replaced the power cord with a brand new one because the old one was horribly spliced and was also missing the ground prong. So now the Flash and its metal side rails are nice and grounded properly.
I have the Flash sitting next to my working Lost World. But, my Lost World needs a new power cable, too, because it is missing its ground plug. I was playing last night and noticed that if I am touching the metal on Flash and the metal on Lost World when my Lost World is turned on, there's some sort of current leak because I get a mild shock - like touching a 9V to your tongue, nothing too bad. It doesn't matter if the either pinball is on or off - basically something is now finding a path to ground when you connect the circuit from Lost World to Flash to Flash's ground plug.
Now I'm not so sure I should replace the cord on Lost World if I have something grounded that shouldn't be - I don't want to make things worse or blow a bunch of fuses unless I know where this is coming from.
Are there common places this sort of issue could occur? For example, the shock was so mild I'm guessing it is fairly low voltage/low current - so perhaps the GI or a flipper coil circuit is hooked up wrong. Any thoughts on where I should start?
I have been restoring a Flash, and I recently replaced the power cord with a brand new one because the old one was horribly spliced and was also missing the ground prong. So now the Flash and its metal side rails are nice and grounded properly.
I have the Flash sitting next to my working Lost World. But, my Lost World needs a new power cable, too, because it is missing its ground plug. I was playing last night and noticed that if I am touching the metal on Flash and the metal on Lost World when my Lost World is turned on, there's some sort of current leak because I get a mild shock - like touching a 9V to your tongue, nothing too bad. It doesn't matter if the either pinball is on or off - basically something is now finding a path to ground when you connect the circuit from Lost World to Flash to Flash's ground plug.
Now I'm not so sure I should replace the cord on Lost World if I have something grounded that shouldn't be - I don't want to make things worse or blow a bunch of fuses unless I know where this is coming from.
Are there common places this sort of issue could occur? For example, the shock was so mild I'm guessing it is fairly low voltage/low current - so perhaps the GI or a flipper coil circuit is hooked up wrong. Any thoughts on where I should start?
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