Applied Science

Repairing the 5V output from a Mastech HY3005D-3 (cheap import) power supply (2011x25)

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The 5V fixed output on my Shenzhen Mastech HY3005D-3 power supply died the other day, and so I took the device apart to investigate. The 5V regulator board had a bad solder joint where the bridge rectifier attaches to the PCB. I used a soldering gun to reflow the joints, and all seems good.