halleffector
Member
Can I test a diode in a circuit without desoldering it first?
I know this is bad practice, but can I at least identify bad diodes in some cases? I assume that there would be some cases where the diode doesn't test bad, but could still be faulty. What I would like to know is, is there any way to test a diode in a circuit that reveals that the diode for sure is bad, in some cases?
E.g. I imagine if the diode has been completely burned over, so there is no connection at all. That should be easy to test with a multimeter? Of course, a visual inspection should reveal that too, but just to illustrate the idea.
So in brief, in what cases (if any) can we test if a diode is bad without desoldering it?
I know this is bad practice, but can I at least identify bad diodes in some cases? I assume that there would be some cases where the diode doesn't test bad, but could still be faulty. What I would like to know is, is there any way to test a diode in a circuit that reveals that the diode for sure is bad, in some cases?
E.g. I imagine if the diode has been completely burned over, so there is no connection at all. That should be easy to test with a multimeter? Of course, a visual inspection should reveal that too, but just to illustrate the idea.
So in brief, in what cases (if any) can we test if a diode is bad without desoldering it?