MacBook Pro a2338 not charging

Is there any possibility of turning on the MacBook without charging, if we take into account that the battery is fully charged?

@juancarlos30510 - Think its like a three way hall light switch one with at the bottom and a second on the top of the stairs. If one switch fails then you can't turn on or off light.

Here we have an even more complex circuit as power from the charger needs to go to the battery to charge it but also go into the logic board to power it, and then when the charger is not plugged in the battery needs to power the logic board. These two chips as outlined in the video control the switching of power.

If I was working on the logic board during a repair I could inject power from a power supply to test things, but thats not practical within a completely assembled system.

Sorry your system needs logic board repairs. the chips are not very expensive and someone who has done a few of these can do it in less than hour (expect two between all of the other needed work to diagnose and test).