PSU: COMPUTER POWER SUPPLY REPAIR EXAMPLES
In today’s world, most technicians diagnose the issue with a computer by disconnecting the power supply from the pc components and doing the paper clip test. If the power supply fails this then it is replaced. The power supply can be replaced and with a little skill will work as good as new.
NOTE: HIGH VOLTAGE COMPONENTS… WORK WITH THEM AT YOUR OWN RISK… MAKE SURE ALL HIGH VOLTAGE COMPONENTS ARE FULLY DISCHARGED AND THAT ALL PRECAUTIONS ARE TAKEN…
Below is a video playlist detailing how to repair high voltage power supplies..
For more detailed understanding of pc power supply operation and troubleshooting consult lazar’s power electronics guide