How to build a console cable for the Universal PCB.

Step 10 Testing Part 3

After all of that work, I know you are itching to plug the cable into your console and stick and get some gaming in. I understand. Don't. Setting everything into the hood could easily have knocked a wire loose, and shorts are bad. Let's take a moment with the multimeter to make sure everything is safe one last time before we plug it in.

The steps we take here are identical to 'Testing Part 2':

For each pin in the console plug, use a multimeter/continuity tester to check each wire and solder joint. One probe should be on the console plug end, while the other should be on the male pin of the D-Sub plug. Make sure they all work with almost no resistance between the two.

Next, re-check the system select pins. Keep one probe touching the VCC pin on the console plug, and use to other to test all of the pins that should be tied high. Make sure they all show almost no resistance. Move the probe to the GND pin on the console plug, and use the other probe to test each D-Sub pin that should be tied low.

Lastly, the dangerous short test. With one probe on the GND pin of the console plug, and the other probe on the VCC pin of the console plug, check the resistance. If the resistance is infinite, everything is good. If there is low resistance, you have a dangerous short and need to check and redo your soldering.