How to Troubleshoot and Repair Laptop Power Adapter

How to repair laptop power adapter. This is the adapter of a Toshiba laptop.

[@whereistruefreedom]

Hi , I'm not good at fixing adapters I need to replace the one I have do you now where I can find a Samsung laptop adapter, can I find it at best buy or micro center? Because I don't want to order on line because I needed it for work and I can't wait until it gets shipped. Thanks by the way for the video it is very good.

[@GEORGE-jf2vz]

Your measuring 'voltage' not current.