I always cut the legs and use a solder sucker to remove the individual
pins. Then I find that going over the pads with copper braid wick
really cleans them up nice. Then I use a bit of acetone to clean the
top and bottom prior to soldering in the new chips.
Dave
--- In motm@yahoogroups.com, "Phil Peery" <ppeery@o...> wrote:
>
> Thanks for the suggestions guys. I will get my hands on the AS196,
> and in the meantime, try Adam's "snip the legs" technique. Since I
> have a fair amount of 1013's and OP275's in my parts box, I feel a
> little more comfortable about snipping them off. Since I only have
> a few CA3080's and LM319's, I'll use the vacumn method for them.
> That way, if those parts check out on the breadboard, I can
> potentially re-use them.
>
> Thanks!
>
> Phil
>
> --- In motm@yahoogroups.com, "Adam Schabtach" <adam@s...> wrote:
> >
> > Besides buying a desoldering pump like John suggested (I have one
> of the
> > smaller ones with an aluminum body--cost about $15 I think),
> another thing
> > I've found helpful is to use a pair of small wire cutters to cut
> all of the
> > legs of the IC near the IC itself. If you think the IC is dead
> there's no
> > need to salvage it, and after you cut the legs you can unsolder
> and remove
> > them one at a time rather than having to get all 14 or 16 free at
> once. My
> > method of attach is to first cut all of the legs, then remove them
> one at a
> > time by grabbing them from the top side with a pair of needle-
> nosed pliers
> > while melting the solder on the bottom side (obviously you need to
> hold the
> > PCB vertically in a clamp while doing this), then go back with a
> solder
> > sucker to remove any remaining solder.
> >
> > The good news is that MOTM PCBs are very high quality so you're
> unlikely to
> > damage them while doing this, if you're reasonably careful with
> the whole
> > operation.
> >
> > --Adam
> >
>