Tag Archives: repairing

Repairing a Computer Power Supply is Dangerous

by admin on 10. Jun, 2010 in Power Supply Repair

Don’t get zapped! I back engineer the ac Voltage input of a computer ATX Switch Mode Power Supply. I explain why there’s a plastic sheet under the PC board, and the difference between Earth Ground and High Voltage Common. I show how a tech-bench Isolation Transformer can prevent an electrical shock when repairing or troubleshooting [...]

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Dell Inspiron 1420 AC Adapter power supply repairing guide

by admin on 27. Mar, 2010 in Power Supply Repair


If you are experienced enough to do such repairs, following the suggestions below will assist you in repairing the power jack on a Dell laptop.1. Remove the wire from both the laptop and the outlet.2. Cut the wire at any point beyond the damaged area so that you can make a clean cut. It is [...]

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