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Jim Yanik Jim Yanik is offline
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Default Cleaning leaked electrolytic & corrosion on PCB

"N_Cook" wrote in -
september.org:

DaveC wrote in message
...
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.

Thanks.



litmus test first to see of acidic or alkaline and go for the opposite as
cleaner ?

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://diverse.4mg.com/index.htm




use vinegar if an alkaline electrolytic,or sodium bicarbonate(baking
soda)solution if acidic. then rinse well,prferably with distilled
water,then some 90% isopropyl alcohol to dry.

use a cotton swab soaked in one of the solutions to test it,then try the
other on a new swab.

vias would probably wick up the solution by capillary action.


--
Jim Yanik
jyanik
at
localnet
dot com