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December 1998

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Subject:
From:
"Stephen R. Gregory" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Tue, 29 Dec 1998 19:23:05 EST
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Hey ya'll...

     Thanks for all the responses! Most of them were related to the part
getting too hot or something along those lines, such being mounted flush to
the board and having failures, but then standing them off and the problem
going away. But what confused me at first with that reasoning, was that these
LED's that were failing were being stuffed with stand-offs...but then I
remembered something...the first 3 or 4 panels that we waved, we stuffed the
LED's in the wrong way...and the ones that were failing were the ones that we
reworked correcting our little faux pax...two heat cycles... makes sense.

You know that old saying; "Long lead goes in the square hole."?...not on this
board it don't...it bit me AGAIN! Dammit!! Why is it that there are a only a
very few board designers that go against the rest of the world when it comes
to going along with the same kind of polarity markings or conventions that
everybody else uses? It seems to be more with LED's too...this is not the
first time this has happened to me, and I'm sure it won't be the last. But
that's what it wuz...

-Steve Gregory-

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