dukesilverfan
Active member
I have several questions in regards to this Chinese Jamma harness I bought. I want to make it work for a supergun/test rig I am doing, so first the questions, then the pictures of it. Let me know if I can clarify at all:
1. What is the best way to add wires to the pins, simply solder directly to the pins and then shrink wrap? I want to add in -5V for my Midway games.
2. The video ground is missing on this harness, should I add that, or can I just use another ground? The video connector from this harness is currently connected to pin A on the Jamma connector.
3. What should I do for pins e, f, 27, 28. I know they are marked as grounds, but they are currently not on my harness. Do I need those? If so, do they ground to anything specific, or just loop back to the power supply ground?
I hope that all makes sense. Attached are the pictures from my harness:
1. What is the best way to add wires to the pins, simply solder directly to the pins and then shrink wrap? I want to add in -5V for my Midway games.
2. The video ground is missing on this harness, should I add that, or can I just use another ground? The video connector from this harness is currently connected to pin A on the Jamma connector.
3. What should I do for pins e, f, 27, 28. I know they are marked as grounds, but they are currently not on my harness. Do I need those? If so, do they ground to anything specific, or just loop back to the power supply ground?
I hope that all makes sense. Attached are the pictures from my harness:



