Jamma cable connection question

demogo

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OK, I'm confused.

If Jamma is the standard cabling used in modern games and everyone complies with it then how do I have a Jamma cable in my Gauntlet Legends game with special 10-12 pin connectors for my 49-way sticks? I thought it was the interconnection standard -- I can't plug an 8-way stick into my Jamma cable??? What gives?

What am I not understanding here? Is my Jamma cable not really Jamma compatible?
 
the edge connector to the pcb and the wiring pinout is what is standard. Some companies use different molex connectors that may not be the common molex. I thought the same thing until i bought two jamma harnesses with thin straight connectors instead of the 9-12 pin(?) or so common molex.

i never had a game with a 49 way joystick, just the 4 and 8 way and they have simple wire connectors to attach to the switches.
 
Jamma is a standard but for games that use extra buttons or a unique control system like a 49 way joystick, there is extra wiring. The extra wiring is sometimes called jamma plus or in fighting games it's usually referred to as a kick harness because the extra harness was for the added kick buttons that were not accommodated for in the standard jamma wiring.
 
Oh, outstanding! So the standard connector isn't quite perfectly standardized.

I can understand the need for the additional 'kick' harness, and for players 3 and 4. But how in the world am I gonna rig an 8-way joystick into a harness that has a 10-12 pin connector running to the 49-way joystick?

Here's what I don't understand -- if I follow the wiring bundle from the 49-way joystick all the way through the cabinet I don't see it being converted back to a standard wiring? (I've followed it all the way to the Vegas boardset's metallic cage; haven't popped open the cage yet).

It would HAVE to convert it back to a standard jamma wiring before it plugs into the main board, wouldn't it? Otherwise it wouldn't be Jamma?
 
The 49-way joysticks are different than your standard 4 or 8-way joystick. They plug directly into the boardset.

what you were wanting to in your previous thread will work. that is of course assuming you use 8-way joysticks. If you use the 8-way sticks, you will wire them straight from the Jamma harness. and also wire up your two kick harnesses.

to the best of my knowledge, you can not use 49-way joysticks to play NBA Jam. you will have to use 8-ways.

http://www.jammaboards.com/jcenter_jamma_pinout.html
 
OK, so the 49-way sticks hook up directly to the boardset w/o using the standard Jamma wiring?

I'm fine with using 8-ways with GL and NBA Jam.

But it sounds like I can't use the Jamma harness already in the game to do it because it's not really a Jamma harness in the sense that I don't see the standard connectors for an 8-way stick?

Would I have to totally replace the wiring harness in the game to use 8-way sticks with GL?
 
what you want to do isnt exactly as easy as other Jamma swappable cabinets. you can do it but there will be work to do, or concessions you will have to make such as playing all games with the 8 way stick. i have posted the gauntlet legends pinout (on the left) and the standard jamma pinout (on the right). i have highlighted the areas that you will need to look at. the gauntlet legends is acutally using the spot that the normal jamma games use for the buttons. so with nba jam, you will need to move the appropriate wires to the buttons and use the appropriate up/down/left/right wires for the joystick. you should be able to adapt the wires after the normal gauntlet joystick connector, and then just route them to the sticks and buttons. (you can look up the gauntlet legends pinout at crazykong.. just find the manual).

gauntletlegendscompared.jpg
 
> or concessions you will have to make such as playing all games with the 8 way stick

I was planning on removing the 49-way sticks completely and just swapping in 8 way sticks so that's not an issue.

> you should be able to adapt the wires after the normal gauntlet joystick connector

I'm not following you 100%.

Can you please start me off with baby step instructions?

Do I need to abandon this wiring harness and put a new Jamma harness in for support of nothing but 8 ways or can I use this one?

If I use this one are you saying that I should hack it so that I bypass the existing weird cable run to the 49 way joysticks?

Sorry, I'm really new at this.
 
>

> you should be able to adapt the wires after the normal gauntlet joystick connector

I'm not following you 100%.

Can you please start me off with baby step instructions?

ok. we know that the wires for the 49 way sticks go to the control panel, but we also know that on an game with 8 way sticks dont need all of those directional controls, but need those wires for the buttons.

So if you buy a connector that fits the connector on the harness for the 49 way stick, you can then take the wires which are used for the 8 way stick and run them there. and then take the other wires and run them to the buttons.

basically you are making an adaptor to the gauntlet control panel connector which will adapt your 8 way stick and buttons to the existing harness.

i am a big fan of trying to keep things original (if possible). that way things can be 'undone' pretty easily.
 
Hi Cueball,

I'm attepting to do the same thing Demogo is doing. I like your idea here:

ok. we know that the wires for the 49 way sticks go to the control panel, but we also know that on an game with 8 way sticks dont need all of those directional controls, but need those wires for the buttons.

So if you buy a connector that fits the connector on the harness for the 49 way stick, you can then take the wires which are used for the 8 way stick and run them there. and then take the other wires and run them to the buttons.

basically you are making an adaptor to the gauntlet control panel connector which will adapt your 8 way stick and buttons to the existing harness.


But I have questions.

After tracing or trying to trace my cables in the GL cab...

In the control panel, there are 4 connectors that are keyed for p1 through p4. Each of these has 14 wires into it. The connector that plugs into the control panel itself breaks off 4 wires for the buttons and 10 wires connect in a connector on the the 49way stick.

On the Gauntlet Legends board, I see 5 connectors plugging in. One is labeled for the coin door. Two are labelled Gun1 and Gun2 which have 6 wires on them. Then there are two more connectors which are unlabelled on the board, but one of which in my cab has a stick on it saying player3. These are 10 wires each and I'm guessing are for player3 and player4 49 way joystick connections.

So maybe player1 and player2 do come off the jamma harness and p3 and p4 are directly connected. I'm unsure what gun1 and gun2 are doing unless those are buttons for p3/p4. The wire counts don't seem to add up right.

Here is the link to the game manual:

http://www.crazykong.com/manuals/GauntletLegends.man.pdf

The end goal is to be able to do 4 players still with Gauntlet Legends using 8 ways sticks and a standard res monitor and be able to swap to other games via the jamma harness. I'm unsure how the 8ways hook up to this gameboard set and what will be required to change to get to the end goal.
 
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