First tried a swap damped with 91% IPA, the flux residue removes quite readily, so I think that would be aggressive enough to do the job.
My concern now is do I need to worry about shorting out my cal data stored in the sram somehow if the IPA is conductive enough to do that?
Thanks Calibrationfixture for your conductance chart link, from that I see (not sure what the *, ** , refers to)
--------------------------------------
Conductivity Chart of Liquids
Name, µS/cm
Water, NYC 72
Water, distilled .04*
Acetone .02*
ISO-propyl Alcohol 3.5**
M-Propyl Alcohol .05*
* conductivity too low for mag
** Low conductivity appl.
-------------------------------------------------
Question for all, I'm thinking IPA is equivalent to getting water on the board which is actively powered on by the battery, so the possibility of shorting out the sram and losing cal data?
In the attachments I outlined the chips that have the residue on their pins on the underside of the A5 board, and also where the battery is of course, which has no issues.
What do you guys think, maybe I should just leave it alone? Or no worries about conductivity/shorting things out with cleaning with IPA?
Thanks
Victor
P.S. board has new nichicon caps and no smd tants on this version.