[Lab] Removing IC

Richard Guy Briggs rgb at tricolour.net
Sun Dec 16 00:09:42 EST 2012


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

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