The laptop has become an integral part of almost every modern family. The compact size, the availability of all necessary functions and the availability of work anywhere made him the leader in sales of computer equipment. But not too often, when you buy a laptop, you think about repairing it. Like any technique, it tends to break, a lot of electronics, bending, extendable and fragile parts make it vulnerable to mechanical damage. And the power supply turns almost into a consumable. Repairing high-precision electronics at home is risky, but the power supply, if you have the skills to work with a soldering iron, you can try to fix it.
Repair of a laptop power supply from any manufacturer begins with a breakdown diagnosis. As a rule, the connector fails first. Try to move it to the sides, if the charge disappears, then it appears, it is in it.
Then you need to try to determine as accurately as possible the location of the likely cable damage. Then disconnect the power supply from the mains and carefully cut the wire in the place of damage, securely connect the ends of the wires, solder and insulate. It is very important not to mix the wires in places, be sure to pay attention to the color. At the same time, if the damage is too close to the connector, shorten the cable and solder the new connector.
If everything is in order with the “male” plug, it is necessary to check the counterpart of the connector, carefully consider the mechanical damage and the bending angle of the contact plates. If deviations are found, an attempt to align them and put them in place, as a rule, does not lead to the desired result, only replacing the laptop's power connector can help.
Having carefully disassembled the unit, you can see whereby the connector is connected to the board. It can be soldering, maybe a plug. And here, according to the situation. Carefully solder out the old connector, without overheating the track or adjacent parts, then use the match to clear the holes from the tin and gently solder the new connector. If it is a plug, then it is easier to disconnect it and release the connector from the mounting on the board (as a rule, these are latches). If the connector is on glue, be extremely careful when disconnecting from the board, there is a possibility of damage to the tracks. After that, a new one is mounted in place of the old connector - everything is extremely simple.
Repairing a laptop power supply can be complicated, as some manufacturers fill the entire board with silicone. In this case, you have to try. To free the connector from dried silicone is a painstaking and very delicate process, while real.
If the repair of the laptop power supply is not limited to replacing the connectors, it is better to contact specialists. Even if you have electronic skills, the laptop power supply circuit is quite specific, and finding its graphic appearance can be a problem.
When starting to disassemble, remember that there may be voltage on the power supply, which can lead to electric shock. In addition, there are a large number of small and fragile spare parts. And improper repair of the laptop power supply can lead to its damage and failure of expensive elements!