Removing a pin from a jamma harness.....

Magister

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Is there a way to remove one of the connector pins from a jamma harmess without ruining it? I had one break, and want to remove one from a slot that isn't being used but can't seem to figure out how to remove it without snapping it off. Or if someone can just point me in the direction of where I can just buy a small bag of them since I'm sure somewhere down the line I'll need another one. I tried Bob Roberts but can't seem to find the right ones on his site. Thanks.
 
Yes, you can pull out individual pins non-destructively. Each pin has a small metal flap that acts as a lock to keep the pin from backing out of the housing.

You need to use a jewelers screw driver (or something else small) to release that lock and pull on the wire (not TOO hard) at the same time. The little rectangle to the outside of the pin is where you want to insert the release tool.

I tried to find pics to help but could not find anything useful!

Here are is another thread with release tools people use: http://forums.arcade-museum.com/showthread.php?t=76033
 
I use a small screwdriver as well or T-Pins (found in the crafts section of wallyworld).

iirc the screwdriver goes in from the board side while pulling the wire or pin towards the wire side.
 
I sell new pins. Here is the link to a 100 pack of them. I also sell them individually.
http://www.twistywristarcade.com/ed...ex-100pack-bifuricated-split-pins-for-ec.html

These work with molex housings, not the older amp ones. If its a jamma harness its most likely molex.

Hmmm, those dont look like the ones in this connector. The pins I have look like the ones in this connector though.

http://www.twistywristarcade.com/edge-connectors/133-28-56-jamma-edge-connector-sec.html
 
Yes, you can pull out individual pins non-destructively. Each pin has a small metal flap that acts as a lock to keep the pin from backing out of the housing.

You need to use a jewelers screw driver (or something else small) to release that lock and pull on the wire (not TOO hard) at the same time. The little rectangle to the outside of the pin is where you want to insert the release tool.

I tried to find pics to help but could not find anything useful!

Here are is another thread with release tools people use: http://forums.arcade-museum.com/showthread.php?t=76033

I have a really small screwdriver, I'll have to give it a try. I guess the pins I have are the Solder Eyelet ones and not the ones you crimp at the ends.

Thanks for everyones help on this. If anyone knows where I can orders the eyelet type ones, that would be great.
 
If I'm not mistaken, those pins come out through the front of the connector, not the back.

Honestly, you may experience less frustration replacing the whole connector. If one pin has broken, then likely others are in bad shape too.

Another option would be to jumper the wire directly to the board. That kind of repair would have been what a field tech would have done BITD.
 
I dont want to rewire a whole jamma harness over one bad pin. The problem with this one is its an old harness and none of the pins from any of my newer ones dont match it. The pins on this older one dont come out like on the newer one with a small screwdriver. I can't pull one out without breaking it. They seem to have a curve on the top of them that slid into a slot. Would rather just find someone that sells replacements and go that route.
 
I dont want to rewire a whole jamma harness over one bad pin. The problem with this one is its an old harness and none of the pins from any of my newer ones dont match it. The pins on this older one dont come out like on the newer one with a small screwdriver. I can't pull one out without breaking it. They seem to have a curve on the top of them that slid into a slot. Would rather just find someone that sells replacements and go that route.

I hear what you're saying, but I stand by my recommendation. I replaced the connector on my Double Dragon cab last weekend after struggling much with the old one. I'd tried all the tricks - pencil eraser, tin tape, clamping the connector, rubber bands, flexing it, etc. Over time, these connectors wear out and need replacing.

If you're planning on keeping the game permanently, your best solution is to replace the whole connector. It will save you time and grief in the long run. $6 in parts and an hour's time at the soldering bench is time well spent.
 
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I've been talking to Bob Roberts about this and he told me that with this type of harness I'm going to have fun trying to track down the pins that will fit it. Otherwise it looks like I'll have to replace the whole thing. Fun Fun.
 
Though you should move to a molex connector, it can be done. Just heat up the pin and remove it after removing the barb from the back. Pull another spare one from the other part of the harness and insert it back in the bad ones position. Use a dab of epoxy on the back to hold it in place in case the plastic hole is too big. Inspect so nothing is crossed/shorted out.
 
Well, looks like I have no choice but to wire in a whole new harness. Anyone know where to buy a jamma harness with all the wiring already installed on it? I tried jammaboards.com but they only have a Eyelet one which I'm trying to avoid. Rather go with the crimp ones.
 
Well, looks like I have no choice but to wire in a whole new harness. Anyone know where to buy a jamma harness with all the wiring already installed on it? I tried jammaboards.com but they only have a Eyelet one which I'm trying to avoid. Rather go with the crimp ones.

You don't have to replace the whole harness. Just the edge connector. Bob Roberts has them in both eyelet and crimp types.

Of course, if you'd rather replace the whole harness, Bob Roberts has nice, high quality harnesses made with crimp type connectors. They're a little more expensive, but far superior to ANYTHING else on the market.

-Ian
 
You don't have to replace the whole harness. Just the edge connector. Bob Roberts has them in both eyelet and crimp types.

Of course, if you'd rather replace the whole harness, Bob Roberts has nice, high quality harnesses made with crimp type connectors. They're a little more expensive, but far superior to ANYTHING else on the market.

-Ian

I agree I would just replace the edge connector, but I have some lots of jamma harnesses if you need one. I sent you a pm.
 
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