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Main => Main Forum => Topic started by: pharoah007 on August 13, 2008, 10:39:01 am

Title: Wiring my first JAMMA harness and have a question........
Post by: pharoah007 on August 13, 2008, 10:39:01 am

so the bottom 3 terminals in the pic are for the monitor as I understand it.

so the Ground wires on the JAMMA harness go to the COM on the power supply?  and if so, which COM as there are 2 of them?
Here is a pic of the PS in question..
http://i4.photobucket.com/albums/y145/pharoah007/DSC04221.jpg

thanks everyone. :cheers:

Title: Re: Wiring my first JAMMA harness and have a question........
Post by: pharoah007 on August 13, 2008, 04:16:13 pm

hummm no replies...

Is this info in the FAQ or a sticky?? I have been looking and have not come across it.

Thanks all

Title: Re: Wiring my first JAMMA harness and have a question........
Post by: 2600 on August 13, 2008, 04:20:14 pm

1. Yes, GND goes to COM.

2. Pick one.


I'd use a multimeter to check that they are the same, but I imagine they are.

Title: Re: Wiring my first JAMMA harness and have a question........
Post by: pharoah007 on August 13, 2008, 04:27:52 pm

Quote from: 2600 on August 13, 2008, 04:20:14 pm

1. Yes, GND goes to COM.

2. Pick one.


I'd use a multimeter to check that they are the same, but I imagine they are.

thanks man. so can I wire ALL of the grounds on the JAMMA harness to 1 of the ground terminals?

or should I wire all the grounds on the JAMMA harness to the 2 ground terminals (1/2 to 1 and 1/2 to another)?

Title: Re: Wiring my first JAMMA harness and have a question........
Post by: 2600 on August 13, 2008, 04:52:03 pm

Usually, you just wire up the 4 Ground next to the power pins on a Jamma connector to the Power Supply.  Depending how what I had available, I'd wire it up using 1 terminal or both terminals.


Read this to learn about the other grounds:
http://therealbobroberts.net/jh.html