20 Sep
2010
20 Sep
'10
8:32 a.m.
On September 19, 2010 06:00:35 pm fons(a)kokkinizita.net wrote:
On Sun, Sep 19, 2010 at 05:01:25PM -0400, Tim E. Real
wrote:
He he. Yes, small things require a certain mechanical aptitude,
steady hands, and sometimes nerves of steel.
Oh, and a good head-mounted magnifier.
Some folks just aren't comfortable and get very nervous.
Did you ever see that famous guy who crafts extremely small scenes
inside the eye of a needle? (On YouTube). That's pressure!
Tim.
Send it to me! I'll do it!
Replacing 100+ pins SM ICs by hand is something we specialized in every
day for many years in our repair shop.
When you can't afford high priced rework stations, you learn to do
without.
A Sony technician taught us one method in our arsenal:
When soldering, just go nuts with soldering all the pins, don't worry
about bridges. Then you use solder wick to remove all the bridges. Then
do some fine touch-ups with the iron. This method worked quite well in
many cases. A fine dental pick or equivalent tool helps, to run in
between the pins as you are touching up with the iron.
Good to know !
When I was working at Alcatel there were some ladies in the
electronics workshop specialised in this sort of operations -
replacing SMD components, destroyed by the developers, on
prototype PCBs. They could also solder cables onto 19-pin
Lemo connectors without melting them, and perform other sorts
of miracles. They won my eternal admiration - I get nervous
when I have to solder an XLR-3M.
Ciao,