Another weird corrosion story

[KA4HJH]

The corroded 303 story reminds me of a dead laptop I have here. The 
power supply is on a separate PB board that plugs into the main 
board. When I pulled it out it had some round green & white spots of 
various sizes here and there. Obviously some oxidation has taken 
place, probably brought on by localized exposure to something 
corrosive. But except for one electrolytic cap that has a little 
corrosion around it's leads (not bulging or anything, but I didn't 
pull it out and test it) there's nothing to physically correlate the 
presence of the spots to--they don't line up with anything that could 
have leaked. And they're just here and there all over this little 
board. Nothing all on the main board half an inch away!

I don't think a UFO landed on it so what the heck happened?

If anyone's really interested I could post some pictures.


-- 
Terry Bowman, KA4HJH
"The Mac Doctor"