How to identify a malfunctioning computer power supply?

Question

Electronics

how to identify the faulty element? Measure the voltage at the points on the diagram or what? Help me to understand. Thanks

Answer 1

Defective capacitors can be identified by their appearance, although sometimes defective ones are not visible, then you have to measure them with a special device, having previously evaporated them. Diodes and transistors need to ring. If you measure the voltage on the circuit, you need to know exactly what it should be there.

Answer 2

Usually it is enough to measure the output parameters on the power supply plug with a conventional circuit. Well, look at the conduits.

Answer 3

Search here:
www.rom.by/forum/Remont_Blokov_Pitanija_i_UPS

Answer 4

at the cost of a PSU, sometimes it’s easier to just replace it with a new one