/diy/ - Do It Yourself

Whats the best way to save as much as possible of this corroded connection? (Small red circle) I was thinking multiple white vinegar treatments, then typical flux & de-solder.

Schematic wise, the corroded connection is on an AC Adapter port. You can see that the red wire with corrosion is going to a battery terminal (larger red oval), but the black wire going to the other pole is disconnected. Do you think that both the red & the black were connected at that same (corroded) point? there is no other points that it would be connected to at that ac port.