bad electrolytics on mobo

[alpi]

I recently receive a bad mobo. It could find three bad elcos on it.
But how to remove them safe from the mobe. Is there a special technics
for it ?
The mobo is a ga-7va rev 1.0

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[Jerry G.]

You need the proper soldering tool that can heat the leads up, and suck out
the solder out, under a vacuum at the same time.

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Greetings,

Jerry Greenberg GLG Technologies GLG
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Electronics http://www.zoom-one.com/electron.htm
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"alpi" <NS_alain.pinchemail@skynet.be> wrote in message
news:mesnews.0add7d42.b2f47b20.4.6988@skynet.be...
I recently receive a bad mobo. It could find three bad elcos on it.
But how to remove them safe from the mobe. Is there a special technics
for it ?
The mobo is a ga-7va rev 1.0

--
Ceci est une signature automatique de MesNews.
Site : http://mesnews.no-ip.com

 

[Wayne]

On Sun, 01 Feb 2004 12:13:31 +0100, alpi
<NS_alain.pinchemail@skynet.be> wrote:

I recently receive a bad mobo. It could find three bad elcos on it.
But how to remove them safe from the mobe. Is there a special technics
for it ?
The mobo is a ga-7va rev 1.0

--
Ceci est une signature automatique de MesNews.
Site : http://mesnews.no-ip.com

http://www.badcaps.net/tips/ will answer your question(s)

Wayne

 

[Kevin]

alpi <NS_alain.pinchemail@skynet.be> wrote in message news:<mesnews.0add7d42.b2f47b20.4.6988@skynet.be>...

I recently receive a bad mobo. It could find three bad elcos on it.
But how to remove them safe from the mobe. Is there a special technics
for it ?
The mobo is a ga-7va rev 1.0

Just make sure you ground your soldering iron (and yourself) before
you change them. I'm sure you know how sensitive motherboards are to
ESD. Other than that, I've never done anything special changing caps
on a motherboard...

 

[alpi]

Kevin a formulé ce dimanche :

alpi <NS_alain.pinchemail@skynet.be> wrote in message
news:<mesnews.0add7d42.b2f47b20.4.6988@skynet.be>...
I recently receive a bad mobo. It could find three bad elcos on it.
But how to remove them safe from the mobe. Is there a special technics
for it ?
The mobo is a ga-7va rev 1.0

Just make sure you ground your soldering iron (and yourself) before
you change them. I'm sure you know how sensitive motherboards are to
ESD. Other than that, I've never done anything special changing caps
on a motherboard...

Thanks a lot

--
Ceci est une signature automatique de MesNews.
Site : http://mesnews.no-ip.com

 

[James Sweet]

"alpi" <NS_alain.pinchemail@skynet.be> wrote in message
news:mesnews.0cac7d42.4d9c2d00.5.6988@skynet.be...

Kevin a formulé ce dimanche :
alpi <NS_alain.pinchemail@skynet.be> wrote in message
news:<mesnews.0add7d42.b2f47b20.4.6988@skynet.be>...
I recently receive a bad mobo. It could find three bad elcos on it.
But how to remove them safe from the mobe. Is there a special technics
for it ?
The mobo is a ga-7va rev 1.0

Just make sure you ground your soldering iron (and yourself) before
you change them. I'm sure you know how sensitive motherboards are to
ESD. Other than that, I've never done anything special changing caps
on a motherboard...

Thanks a lot

Also when you find a bad one, replace all of that type on the whole board,
as the rest will fail soon. I've fixed a number of boards with bulging caps,
it was an epidemic for a while.

 

[Laurence Payne]

On Sun, 01 Feb 2004 22:36:51 GMT, "James Sweet"
<jamessweet@hotmail.com> wrote:

Also when you find a bad one, replace all of that type on the whole board,
as the rest will fail soon. I've fixed a number of boards with bulging caps,
it was an epidemic for a while.

Yeah. The story goes that there was a bit of industrial espionage
involving the formula for the fluid in an electrolytic capacitor.
They got it slightly wrong! A batch was made with the wrong fluid.
They are currently failing.

You might be surprised how cheap a replacement motherboard, or an
equivalent, is. Unless you LIKE fiddley soldering ;-)

 

[LASERandDVDfan]

Yeah. The story goes that there was a bit of industrial espionage
involving the formula for the fluid in an electrolytic capacitor.
They got it slightly wrong! A batch was made with the wrong fluid.
They are currently failing.

Apparently, a scientist who worked for Rubycon stole a formula for water-based
electrolyte and gave it to a Chinese company.

The formula was slightly incomplete, but allowed electrolysis to occur inside
the can. Eventually, hyrdrogen gas would build up inside the can and cause it
to bulge and even burst open. - Reinhart