While troubleshooting the power supply of a 1970s Centurion system, [Usagi Electrics] came across a fascinating feature of these units: the ferroresonant, or constant voltage transformer (CVT). The ...

After we last saw [David Lovett] of [Usagi Electric], he was knee-deep in trying to fix a DEC PDP-11/03 power supply, which fortunately led to a fixed PSU and a very happy PDP-11/23 system installed ...

It's not the power supply itself, just one of the leads with the power connector on the end, which plugs into hard drives. That's where the wires have become unattached, it looks as though they just ...

This video is a Power Integrations course about fixing a flyback supply where the output fails to reach regulation. This course describes the steps to troubleshooting and repairing a power supply does ...

A faulty PSU can cause damage to the motherboard or the components installed on a motherboard. Therefore, it is important to replace it immediately. Here are some signs of a faulty PSU. The fans of ...

1] Does the PSU fan spin on startup? Some users reported that their Power Supply Unit fan spins on startup but stops after some time. Others reported that the PSU fan does not spin even on startup.