Midway Jamma Harness Compatability

bigdrillcar

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Trying to finish up de-converting an MK1 (from a golden T) and have been stuck at the wiring harness. I am really trying to avoid using a universal jamma harness, but am not having any luck finding an original MK1 harness.

Are there other midway harnesses that are compatible or will get me 90% of the way there?
 
I'm not a 90's midway expert in any way but i believe the only major differences lies in the power area, which service panel is used and of course which kick harness was used.

For the power, one using a standard switcher with the transformer block and the later harnesses using the 9 pin AMOAA power pinout for AT/ATX style power supplies that sit on an AC power distributor block. There were 3 service panels and of course the kick harnesses.
 
Trying to finish up de-converting an MK1 (from a golden T) and have been stuck at the wiring harness. I am really trying to avoid using a universal jamma harness, but am not having any luck finding an original MK1 harness.

Are there other midway harnesses that are compatible or will get me 90% of the way there?
What are you stuck at? Midway just used standard Jamma harnesses there was nothing special, like 90 percent of the games did at the time just used a standard Jamma harness. Any midway jamma harness will work but a lot of midway games and others used what is referred to a "kick harness" this is because a standard Jamma harness either did not have enough wires for all the buttons for a 2 player game with a lot of buttons for each player like mk1 or for games with 3 or 4 players because of the extra joysticks and buttons.

You can get new kick harnesses on ebay for pretty cheap, if it was converted to golden tee they probably removed it as it was not needed.

 
What are you stuck at? Midway just used standard Jamma harnesses there was nothing special, like 90 percent of the games attended at the time just used a standard Jamma harness. Any midway jamma harness will work but a lot of midway games and others used what is referred to a "kick harness" this is because a standard Jamma harness either did not have enough wires for all the buttons for a 2 player game with a lot of buttons for each player like mk1 or for games with 3 or 4 players because of the extra joysticks and buttons.

You can get new kick harnesses on ebay for pretty cheap.
one area where you can get caught in the trick bag is running something like Smash TV or Super High Impact in a repurposed Blitz cabinet with the stereo JAMMA harness I discovered. lol

also JAMMA allots for 3 action buttons per player, it can be stuffed to have 4 and 5, but Williams/Midway created separate player 3/4 headers for their 4 player games and in the case of Mortal Kombat and other fighting games they tapped the low attacks/run/whatever into the player 3 header. in case anyone was wondering why the kick harness goes to player 3. lol

beyond that, an original Midway harness as nice as it is in terms of keeping it original can be easily replaced with a different JAMMA harness. I prefer Suzo-Happ's (except they're kind of in limbo right now due to a sale), Twisted Quarter is supposed to have good ones as well.

stay away from the Chinese harnesses because their power wires aren't as thick of gauge as the insulation will lead you to believe. they're also specifically for CHAMMA multi games like Pandora's Box because they tap JAMMA 4-6 buttons by repurposing the 2nd to last grounds for the 6th buttons on player 1/2.
 

I have big box of so many nice NoS ones idk that ill ever have to buy one, few odd ones that do not have the -5v or something like that because that game did not need it i guess, probably most came with kits and they just used the existing jamma in the cab. So not sure about that but ive heard the same Happ or twisted quarter for a new standard jamma.
 
What are you stuck at? Midway just used standard Jamma harnesses there was nothing special, like 90 percent of the games did at the time just used a standard Jamma harness. Any midway jamma harness will work but a lot of midway games and others used what is referred to a "kick harness" this is because a standard Jamma harness either did not have enough wires for all the buttons for a 2 player game with a lot of buttons for each player like mk1 or for games with 3 or 4 players because of the extra joysticks and buttons.

You can get new kick harnesses on ebay for pretty cheap, if it was converted to golden tee they probably removed it as it was not needed.

I am mostly stuck at being OCD. I just want it to be as close to original as possible. I do have a universal jamma harness and kick harness in hand.
 
I am mostly stuck at being OCD. I just want it to be as close to original as possible. I do have a universal jamma harness and kick harness in hand.
Ohhh i gotcha you want an original midway harness to keep it original as possible lol gotcha i thought you were having trouble with pin outs or something.

Any midway game from that era would use the exact harness or it would be very very close. Nba jam, total carnage, were closest to being made at the same time as mk1 i believe, after that mk2 blitz nhl open ice rampageWT all should be very close if not identical too I would think.

Edit:
Well here is the exact ones from KLoV in the picture lol. Those should be the exact same or close.
 

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