Anyone eve see brown corrosion on a printed circuit board? Is this something possible? Common to old electronics that have been exposed to moisture?
Specifically my headlight warning chime /black box in my monza. I found it was running hot to the touch, and drained the battery after a day or 2.
I pulled it apart and the only unusual thing I can see is that there seems to be some brown corrosion all over the back of the PCB.
Almost seems like someone spilled coca-cola on it at one time. But that would only have been possible if it was removed at some point. What caused the brown shiny crust?