DIYbanter - View Single Post - Cleaning leaked electrolytic & corrosion on PCB

JW

On Sun, 11 Apr 2010 10:16:27 GMT (Nico Coesel) wrote in
Message id: :

DaveC wrote:

What is the best method for cleaning up leaked electrolyte? This PCB has some
corrosion on IC leads and vias.

Is there a corrosion neutralizer that would be effective? Since the potential
for corrosion in places that aren't accessible (deep in the vias), a liquid
that can neutralize corrosion is called for.

Would something like DeOxit work in such an application?

This is on a Tek scope acquisition board.

Hmm, you bought a TDS5xx? There is a lot about cleaning these board on
the Tektronix user forum on their website.

Many TDS 6XX scopes also had this problem. I run them through a dish
washer first, then a Simple Green scrubbing followed by rinsing and blow
dry using a compressor. After that I scrub 'em again with isopropyl
alcohol, remove all the caps and replace with new ones. If it still
doesn't pass it's diagnostics and SPC, start looking for open vias
(usually black) and etches that are close to the areas where the worst of
the leakage was.