Re: Finding a cold solder joint...

The two boards I'm looking at are Megaforce and Gauntlet.

It *could* be a socket problem, but the first thing I tried was reseating
the socketed parts without any success. I'll look over the boards for signs
of repair, and also try the method of pulling the board over the edge of the
work bench.

Thanks!

-atw

----- Original Message -----
From: "Kev" <mowerman@erols.com>
To: <rasterlist@synthcom.com>
Sent: Friday, December 14, 2001 6:58 AM
Subject: Re: RASTER: Finding a cold solder joint...

> I try to lay the board on a flat surface with an overhang (edge of the
work
> bench) and then move the board & flex it (downward) until the error
appears.
> This helps limit the flex area to the section directly over the edge of
the
> workbench. But are you sure it is a soldered in component & not a socket
> problem?
>
> Kev
>
>
>
> > I've got a couple of boards with intermittent graphics problems that go
> away
> > when the board is flexed, which leads me to conclude that I've got a
cold
> > solder joint somewhere that needs to be reflowed. But for the life of
me,
> I
> > can't figure where it is -- I've tried just wiggling components, but
that
> > doesn't seem to narrow it down (wiggling different components seems to
fix
> > it different times).
> >
> > Are there any tricks for figuring out where on the board the problem
lies?
> I
> > don't have any schematics, otherwise I'd try to track it down based on
the
> > symptoms, rather than just blindly wiggling the parts...
> >
> > Thanks,
> >
> > -atw
> >
>
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Received on Fri Dec 14 09:31:03 2001