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Braunbear Braunbear is offline
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Default Gel on finished PCB?

Hi,
I am going to be vague for this first post.Please excuse me.

A number of folks have very recently purchased defective AV receivers
from a certain well known manufacturer. Since the manufacturer does
not publicly disclose the cause of the symptoms owners are
experiencing, much speculation has occurred as to the cause. The
speculation I refer to is on a thread in a forum for AV enthusiasts.
Since the repair involves a 40 pin ribbon cable and its associated
connectors, one poster claims to have inside information as to the
cause of the failure of these components. His claim is that there was
an acidic gel applied to the PCB and connectors that corrodes the
cable and connectors. Not knowing of any gel that could be left on a
finished product's PCBs, especially in the area of a connector, I
question this claim. So, my question is, does anyone have any
explanation as to how or why or what this gel might be? And is it a
feasible claim that there was such a gel? To me, the claim is
extraordinary and leaves me with more questions than answers.

Thanx in advance. Any help would be much appreciated.