When the welding is done, where is the head of the soldering iron, where the original pin is attached to the circuit board or on the original pin? Then the tin bar is placed on the head of the soldering iron. After melting, he rolls onto the circuit board Total sense of mastery skills
The iron head put the position of the connection in the original pin and circuit board and solder wire (preferably used) is placed on the iron head waiting for him to melt after rolling to the circuit board, because solder wire inside rosin flux, solder joint welding end so smoothly, and then cut off the excess pin can be. Two question: how to suck the tin of the interface? Put on tin suctioner ready to use electric iron? Or reverse the order? Should be the one hand iron hand ready to see the soldering tin suctioner, tin suctioner immediately sucked out of solder, both the first of which one will make the solder cooling wash off or suction is not clean
