[ale] Pictures of the culprit (was OT: Diagnosing HW problem)

[Randal Jarrett K4RSJ]

Looking at your pics I would say that the burned device is
a voltage regulator.

If you yourself or a friend do surface mount work then it probably will
only cost a couple of dollars for the part.  Most likely something else
is bad that caused the part to burn up.


Randy

On Tue, 2005-06-14 at 17:26 -0400, John Wells wrote:
> Guys,
> 
> After examining the mb with a flashlight, I found the culprit.
> 
> See:
> 
> http://www.sourceillustrated.com/mb_1.jpg
> http://www.sourceillustrated.com/mb_2.jpg
> 
> Ok...now for real technical lingo here...
> 
> Of the four square thingies with the silver circle in the middle, notice
> one is most definitely *not* like the other.  First, what is this fried
> and charred thingie?  Second, does this look like it may have resulted
> from a lightning strike (we had some good ones here this weekend).  I have
> the box behind a good surge protector and UPS, but like a DAU I have cable
> running directly into a tv tuner card with no surge protection, so I'm
> wondering if that may have provided a clear path.
> 
> Interested in learning your thoughts.  Thanks again for the help!
> 
> John
> 
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Randal Jarrett  <rsj at radio.org>
RSJ Consulting, Inc
Lawrenceville, GA
(770) 822-1096  home
(770) 598-3251  cell