[Lab] Removing IC

[Tom Burns]

Bruce if you have a solder sucker keep trying.  Be sure to put some solder
on the soldering iron to ensure heat is flowing to the solder in the hole.
 If your alternative is getting another board, keep trying first until you
destroy the one you've got :)


On Sun, Dec 16, 2012 at 12:09 AM, Richard Guy Briggs <rgb at tricolour.net>wrote:

> On Sat, Dec 15, 2012 at 05:58:12PM -0500, Bruce wrote:
> > Richard, Jean-Marc, & Chris,
> >
> > It turns out I was not so lucky after all there was one hole which has
> > resisted all attempts to clear.  Maybe there is a piece of the IC stuck
> there,
> > but for whatever reason I can not clear it.  Looks very much like I'll be
> > ordering another board.  Live an learn.
>
> It should still be possible to chase out a chunk of IC pin by heating from
> one
> side and pushing through with a resitor lead or something like that.
>
> > Bruce Harding
> >
> > On December 14, 2012 11:23:41 AM Richard Guy Briggs wrote:
> > > On Fri, Dec 14, 2012 at 10:02:44AM -0500, Bruce wrote:
> > > > Well it appears that I soldered one of my IC chips in to the wrong
> socket
> > > > of my Arduino motor shield.  I've tried to remove the solder with my
> > > > plunger, but just can't get all the solder to lift. I also tried
> braid
> > > > copper no luck.  Is there any hope of salvaging this shield?
> > >
> > > It depends on the quality of the board.  These are fairly good quality
> > > boards, so they should survive, but as noted, the chip may not.  Both
> > > methods suggested are likely to work.  I assume it was the 595 chip
> that
> > > got soldered in backwards or in the wrong place since the L293D chips
> > > usually have sockets provided for them since they are more likely to
> get
> > > fried by motor loads.
> > >
> > > I thought I had spares of that chip kicking around, but I couldn't
> find them
> > > in my list...  I have 74164, 74165 and 74299...
> > >
> > > I just soldered up my adafruit motor shield last night (the kids were
> doing
> > > christmas cards and other drawing/colouring/writing projects at the
> dining
> > > room table and asked me to join them with a soldering project.).
> > >
> > > > Bruce Harding
> > >
> > >     slainte mhath, RGB
>
>         slainte mhath, RGB
>
> --
> Richard Guy Briggs               --  ~\    -- ~\            <
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