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Questions about grounding a cab
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mgb:
That is true.
eerie:
hello, I'm new here, greetings everyone. also, I'm from spain so sorry for my english

I have a problem with the grounding in my arcade. the frame of the monitor, hantarex 9110 25", has a voltage of 130v. I can't find the reason, no wires touching metal or something like that, everything seems to be connected fine. as my arcade wasn't grounded at all, I connected the frame, the cpo and the coin door to an earth wire and that wire directly to the third pin in the socket which goes to the wall that is correctly earthed. when I turned on the arcade, a fuse blew (F1) and my house GFCI also tripped. so I assume that I have to find a solution for those 130volts not being on the frame before grounding anything up. the arcade works fine with the jamma board but I was trying to solve this before connecting the pc and jpac as I think that maybe something could be damaged. what do you think? do I leave it as it is? it seems to work fine, maybe just taking care not to touch the live parts that I already know...

many thanks
MonMotha:
It sounds like your monitor needs an isolation transformer on its AC power lines and you either don't have one or it's broken.
DaOld Man:
+1 on what monmotha said.

isolation transformer on ebay
eerie:

--- Quote from: MonMotha on September 09, 2011, 06:05:48 pm ---It sounds like your monitor needs an isolation transformer on its AC power lines and you either don't have one or it's broken.

--- End quote ---

I have a 220/130v transformer which feeds the monitor, I think that should do the function... or maybe not? would adding a second transformer really do anything?


thanks
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