time to ground

[fjser]

amost done converting my mame cab. the plug it came with only had two prongs, so im replacing it with a three prong one.  Now, my question is this, my control panel is grounded to my JPAC adapter hookups (either on the JPAC itself, or on the jamma connector). What else do i need to check for grounding?  I assume the monitor, but is there anything else? does the control panel ground connect already to the jamma adapter? am i missing anything?

[paigeoliver]

A conversion cabinet may have had all sorts of funny stuff done with the earth ground (3rd prong). I actually am running most of my stuff 2 prong because I have two prong outlets, but here is what you should do.

Does your cab have a power brick, if so then your earth ground should hook up to the frame of this, then jump to the coin door frame, the control panel (if metal, otherwise skip it), the monitor frame, the speaker frames and then the light ballast frame.

That will get you a SOLID earth ground.

Most cabs don't have it done to that extent, or it isn't connected to that extent anymore.