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How to Piggyback an Xbox360 controller on a Universal PCB

Step 9TEST FOR SHORT CIRCUITS!

TEST FOR SHORT CIRCUITS!
This step will save your tail. Failure to do this can cause you to fry your Xbox360 board, the UPCB, the console or computer its connected to, catch fire, crap squirrels, and steal lunch money. Do it.

The #1 thing we need to pay attention to is short circuits; a direct connection between power, and ground. Grab you're multimeter, set it to check for resistance (ohms). Turn the board upside down, so you're facing the back, and fine the four spots you soldered to that the USB cable originally was. Place on probe on the topmost point, and the other probe on the bottommost pad, and check the multimeter.

IF THERE IS A VALUE THERE, ESPECIALLY ONE CLOSE TO ZERO, YOU HAVE A SHORT. You MUST find and fix this short before even thinking of plugged it into anything. The point of this work is to let you play on Xbox360s, not to destroy Xbox360s.

There may short some resistance, that quickly increases until it is infinite resistance. This is perfectly normal, and is caused by the capacitors on the board. The only time you should worry is if there is a constant value, especially zero.

DO NOT CONTINUE UNTIL YOUR SHORT HAS BEEN FIXED.
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