On Fri, 16 Apr 2004 14:20:11 GMT, "Noozer" wrote:


"Cowboy67" wrote in message
...
Looks like a power transistor to me even though the D stands for diode.
D3
would be the part number if you had the schematic & or parts list it would
tell you the value. Surface mount components are the most sensitive to
ESD.
Make sure you don't use too much heat and try to use a grounding strap
when
soldering.

Being SMT is definately not an issue here. The pads are almost .2" square
and there are only two pads. Should be easier than pulling a hole mounted
capacitor.

Except that they're huge pads with smaller SMDs not "too" far away. I'd
find it easier to do a hole-mounted cap, yet wih a decent wattage iron it
should still be easy.



I did a search through some of my component cross reference software and
came up with various tolerances for the number 4R7. Is there something
more
to the number that we cannot see in the pic?

It doesn't look like a transistor. Only two leads on it. It looks like
ferrite material with wire wrapped around the core. I guess there could be
something at the core. 4R7 is the only marking on the part.

It's not a transister, rather an Inductor, 4R7 is the mH (uH) value.
It may be similar to the following, or larger, but I don't know where you
find find ONE except perhaps off of another semi-moden, Geforce(1),
Radeon, or newer video card.
http://www.umec-web.com/products/pdf...RSB805-4R7.pdf



www.csd.ca/Board1.jpg
www.csd.ca/CloseUp.jpg

I'm going to try and get a couple better pictures. Not an easy task with
this camera. It doesn't like to focus under 24" even in macro mode.


Better pictures may not be needed, there's nothing more to see there
except whether the inductor is really damaged, which might be more
apparent from an angled side-shot. Side-shot would also show it's size,
height. I can't tell if it's just odd lighting or if the capacitor to the
bottom, left of that is domed, failing. If that cap is domed, personally
I'd replace the cap and try the card before touching the inductor.