Near Hopeless Laptop Repair
WAY WAY south of the border. UPS, mail, computer parts a thing of dreams. An OLD laptop works fine. Dead battery. Power supply 19.5 volt brick burned its circuit board. 2.8 amps @ 19.5 volts. Batt...
Forum Discussion
When it comes to polarity I've found there is no guarantee. Check the board on both the brick and on the computer you might get lucky and see a polorized cap or diode or some indication of polarity on either the center pin or the outer contact.
Beyond that you know what to do I'm sure.. You have posted the skills often enough.
Beyond that you know what to do I'm sure.. You have posted the skills often enough.
