Yes Jerry, isopropyl alcohol does this!
I once cleaned a working print of a GPS receiver with isopropyl alcohol and it stopped working. Letting it be and trying it again next day turned out it worked perfectly again.

From then on I leave a PCB to rest after cleaning to have the IPA dry out completely...

73,
Peter - PA0PJE





Op 14-07-2021 om 14:54 schreef jerry:
Actually, I suspect that when I scrubbed it with isopropyl alcohol, it
shorted out
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