Hi guys, I'm hoping someone can assist me with a MK jamma harness. I have an original MK 4 arcade that has functioned perfectly for many years. Over time, I purchased every Mortal Kombat pcb and used each one without a switcher inside the MK4 cabinet. Two years ago I learned how convenient a switcher would be so I purchased a 6-1 and had it modded by an awesome forum member here. I never could get it working as it wouldn't power up for more than a few seconds. I lost interest and it sat until this weekend. Lol
Longer story made short I discovered my MK4 jamma harness is missing the top Orange 12v pin 6 wire. I'm a total novice with this stuff but I reverse engineered using my other jamma cabinet that I have running a modded Xbox. That second orange wire is there coming from the power supply harness in my other cab and the switcher powered right up.
Why is this wire missing from my original MK4 jamma harness? More importantly, how can I wire one in to make my switcher work?! Is it as simple as putting a wire 12v from the power supply harness and into top pin6 on the jamma harness?
Sorry if this has been covered or is totally trivial. I'm a want to be hobbiest with arcades but unfortunately I've never had the time or resources to start my collection. I just grew up playing MK arcades and love owning my own as a middle aged old guy. Lol
Thanks!
Top pin 6 missing-
From power supply-
Longer story made short I discovered my MK4 jamma harness is missing the top Orange 12v pin 6 wire. I'm a total novice with this stuff but I reverse engineered using my other jamma cabinet that I have running a modded Xbox. That second orange wire is there coming from the power supply harness in my other cab and the switcher powered right up.
Why is this wire missing from my original MK4 jamma harness? More importantly, how can I wire one in to make my switcher work?! Is it as simple as putting a wire 12v from the power supply harness and into top pin6 on the jamma harness?
Sorry if this has been covered or is totally trivial. I'm a want to be hobbiest with arcades but unfortunately I've never had the time or resources to start my collection. I just grew up playing MK arcades and love owning my own as a middle aged old guy. Lol
Thanks!
Top pin 6 missing-
From power supply-