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SE/30 Troubleshooting Aid -J12 Jumper


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Troubleshooting an SE/30 motherboard with an oscope is almost impossible with how short the power/signal cable is (J12). Has anyone tried making a longer cable for troubleshooting? This is the cable that connects the motherboard to the analog board.

 

thank you,

Rick

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21 minutes ago, Rjp663 said:

Has anyone tried making a longer cable for troubleshooting

 

They're standard Molex Mini-Fit Jr. connectors.  I actually bought one because I am terrible at crimping cables, but it's not particularly demanding to make one.

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https://www.digikey.com/en/products/detail/molex/0766500088/2115964

 

I used two packages of these and some 24 gauge wire. The connectors as well as the metal pins are included. I used a pair of pliers to crush the metal tabs onto the wires. I have no idea what the correct way to do this is, but it worked fine for me. I'm sure there is an expensive professional tool to crimp these correctly, but my pliers got the job done eventually. :)

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