mecha
Well-known member
I have a pretty awesome supergun that I built out of a HotRod SE joystick that has switchable video output to either a JROK TV encoder or video game monitor, as well as a kick harness that floats out the back if I ever wanna hook one of my Midway fighters up to it lol.
the only item I didn't outfit it with was a speaker, and I tried several of them yesterday and every single one of them emitted this scratchy nonsense where like half the audio output seemed missing and it produced this obnoxious ground hum.
I compared my wiring to the NBA Jam manual (since that's where the JAMMA harness was parted from) and the wiring is red/violent for + and green/violent for -, and I hooked them up right.
I tested it with two games I know worked in other cabs, my High Impact Football and Smash TV, and the volume pot I have was wired correctly with the shield and all.
am I looking at a case where I need earth ground hooked to a corner of the speaker, or could there be a fault in my sound wiring?
the only item I didn't outfit it with was a speaker, and I tried several of them yesterday and every single one of them emitted this scratchy nonsense where like half the audio output seemed missing and it produced this obnoxious ground hum.
I compared my wiring to the NBA Jam manual (since that's where the JAMMA harness was parted from) and the wiring is red/violent for + and green/violent for -, and I hooked them up right.
I tested it with two games I know worked in other cabs, my High Impact Football and Smash TV, and the volume pot I have was wired correctly with the shield and all.
am I looking at a case where I need earth ground hooked to a corner of the speaker, or could there be a fault in my sound wiring?
