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| [title] Replace the old with the new (soldering) | |
| - | [* black] Insert wisdom here. |
| + | [* black] Disconnect all power connections before you start |
| + | [* black] Prepare your non-static work environment if possible. Ground yourself, war anti-static shoes, work on a non-static mat, etc. |
| + | [* black] Have the replacement transistor ready for deployment |
| + | [* black] Heat up the soldering iron (350-450 should do depending on your device, iron welder, etc.) |
| + | [* black] Remove the broken transistor by carefully heating the SMD pads that connect T1 or T2 to the mainboard PCB. Because there are three pads, try circular rotation while using the tweezer to pull of the old device |
| + | [* black] Use the solder suction pump to remove any old solder metal around the transistor pads |
| + | [* black] Note: This guide is assuming that the NPN transistor has the following pinning (SOT-23): TOP LEFT: Emitter TOP RIGHT: Base BUTTON: COLLECTOR, see the data sheet and mainboard picture. |
| + | [* black] Finally, solder the new transistor the the pads. If you face difficulty with handling the device, tweezers, etc. try [http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keywords=electronics+magnifying+glasses|electronics magnifying glasses] |