If you really want to do more hacking on the Touch one thing that can
help a lot is magnifying goggles and a good light source. I bought mine
at Harbor Freight for $5 years ago, I think they still carry them but
the price might have gone up. It makes a BIG difference.

If you are going to be removing surface mount parts and soldering new
ones in there are a few basic SMD tricks that help. The most important
is to get the SMD removal kit from Chip Quik, this contains special low
melting point solder that is great for removing parts. It also contains
a syringe of flux, this is invaluable for both removing and putting in
new parts. Using flux is the secret sauce that makes soldering SMD
parts vastly easier. When soldering a new part on, use the syringe to
put a little drop of flux on the pads, press the part down into the
flux, put a drop of solder on the end of the iron and touch it to the
pad (not the part) for a second or two, the flux melts and solder flows
right off the tip and inbetween the part and the pad. 

The other useful tool is fine solder braid. After you remove the old
part put some braid on the pad and put the iron on the braid, let it
sit for 5-10 seconds, the iron heats up the braid and melts the solder
on the pad, it wicks up into the braid and you are left with a nice
flat pad ready for soldering a new part. Its also great for removing
solder bridges if you accidently solder together two pads that were NOT
supposed to be connected. 

BTW the SMD removal kit is around $12 at Mouser and DigiKey, I presume
it is at other distributors. My local Fry's also carries it. Chip Quik
has some videos that show how to use it. 

John S.


-- 
JohnSwenson
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