Looking for a short with a DC power supply question

Thread Starter


Joined Aug 13, 2014
I've got a 30V,5A DC power supply that comes in handy for finding shorts on the motherboards I mess with. I usually set it to 1 volt and 2 amps. I understand that a no problem board will show 1 volt and 0 amps, and a shorted board will show 0 volts and 2 amps. But what is the issue when I get 1 volt AND say 1.6 amps?


Joined Nov 23, 2015
Could that be any component in a circuit that I'm looking at or is it maybe a symptom of a particular component?
A filter cap in backwards? An IC in wrong?
Look for something that gets hot. Do you have freeze spray available? Paint the board white with freeze spray, apply the power and see what thaws out quickly.