If you are practicing on scrap PC, you will perhaps have to remove a few of tis components before soldering them back. Before studying this section do study desoldering tutorial.
Make few practice solder joints by placing some components randomly on the PC board. Before you try to solder, check the joint that is to be soldered. Joint should be sufficiently clean, free of corrosion, and mechanically stable (held in some suitable place). Now Place the soldering iron tip on all of the material that you want to be soldered. If soldering is carried on a PC board, this means the soldering-iron tip should be placed on the PC board foil material, and on the component lead at the same time.
