Dell Laptop charger adapter received for repair stating symptom of not working. On inspection I found power out light led is light up but laptop was not detecting the charging mode. On testing the output of the adapter on DC Pin I found “0” Volt instead of 19V Dc.
An old man brought his laptop and the power supply for repair. For some reason, the laptop was not powering on. It could be either the power supply or the laptop itself has problem. I tested the output voltage on the power supply and I got a reading of 22 volts. The output voltage should be 19. From experience, I knew the problem right away. The main problem was the power supply. Read More