Kaizen Posted April 4, 2017 Share Posted April 4, 2017 I had to make up a new Jamma harness from a loom that was stripped out of a cab. This is one of those recent cheap Chinese looms you get for under $20 off ebay. The biggest weakness of these harnesses is the power supply cables. Though they look thick on the outside they are all insulation and only a very thin strand of wire inside. This can/will cause current flow/voltage drop issues in your cab. You can see in the image below that the original wire is the same size as the upgrade on the outside but the new wire has a larger conductor. http://i1038.photobucket.com/albums/a462/Kaizen088/Random%20Crap/20170404_192226_zpsmt7fhvzu.jpg The cable I use is 3mm auto (because that's what I have readily available) but anything with similar conductor size is an improvement on the original. http://i1038.photobucket.com/albums/a462/Kaizen088/Random%20Crap/20170404_193323_zpsgpvslukg.jpg This obviously needs to be run all the way to the power supply. I usually solder the terminals at the power supply as well. http://i1038.photobucket.com/albums/a462/Kaizen088/Random%20Crap/20170404_192117_zpsfvwahwon.jpg Link to comment Share on other sites More sharing options...
m4me Posted April 4, 2017 Share Posted April 4, 2017 I actually have a few of these, didn't realise they were like this so thanks for the heads up. Link to comment Share on other sites More sharing options...
madal Posted April 4, 2017 Share Posted April 4, 2017 There was Thread sometime back warning about the power wire. Link to comment Share on other sites More sharing options...
Good Times Posted April 4, 2017 Share Posted April 4, 2017 Far out! Interesting, I'm about to make a new loom for mine as the stock one is starting to let go. Any recommendations as to the jamma connector? I've seen quite a few out there and assume similarly that they vary a lot in quality. Link to comment Share on other sites More sharing options...
Kaizen Posted April 4, 2017 Author Share Posted April 4, 2017 No suggestions as far as the connector is concerned. I use the Chinese ones but do the mod. The switch wires are good enough and I haven't had any issues with the edge connector. Link to comment Share on other sites More sharing options...
-Slayer- Posted April 8, 2017 Share Posted April 8, 2017 The original smaller cable that came with the harness, do you know what it's made from, tinned annealed copper? Link to comment Share on other sites More sharing options...
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