RE: Re[2]: VECTOR:Re: Obscure Battlezone AVG board fault

From: Alex Yeckley <ayeckley_at_elektronforge.com>
Date: Tue Aug 29 2006 - 18:36:19 EDT

>Good point, there's also the issue of flux which I believe can
>also cause problems in rare cases (I recall once reading about
>a fault that Alex Yeckley (I think) came across which was
>caused by flux from a previous repair causing some slight
>conductivity).

Wow - I'm amazed that anyone remembered that. It was in an op-amp circuit
where the currents were very, very small (input impedances of megohms-plus)
and any leakage current caused weird things. I don't think that's what he's
got in this case. If I were a gambling man, I'd bet that he's got a solder
whisker - perhaps microscopic - somewhere between one of the data lines and
some other signal.

Alex

----
ayeckley@elektronforge.com
www.elektronforge.com
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Received on Tue Aug 29 18:36:29 2006

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