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Five steps to repair the power adapter!

source:power adapter     Popular:adapter     release time:2021-07-20 10:56:53     Article author:sznbone    

  Notebooks are machines and equipment often used in network editing, but once there is no electricity, everything will not work properly. At this time, power adapters will be used. Power adapters have important functions in people’s daily lives. If this machine What should I do if the equipment suddenly breaks down and how to repair it?

  1. If there is a problem with the genuine adapter, which cannot be repaired or can't be repaired in time, it can be replaced by another adapter first. If the output working voltage and output power are probably very good. There is also a voltage regulator circuit inside the notebook, so there is no need to worry too much about the problem of unmatched output working voltage. When repairing, the first step must be to prepare special tools in advance. People must digital multimeters, screwdrivers, welding tools.

  2. There are four plastic caps on the power adapter. Try not to destroy the adapter shell. After the shell is destroyed, problems such as increased electromagnetic wave radiation will occur, which will endanger the stability of the equipment. If the shell is damaged, repair it as much as possible. During the whole process of disassembly and assembly, if the external power supply does not supply the system, you can plug in the rechargeable battery and try it. If the device can start normally, there will be a problem with the power plug or adapter. After opening the appearance and opening the shielding layer, it is best to check the solder holes first. Human eyes can check it. The power circuit is sometimes not, usually loose. Then check with a digital multimeter to find out if there is a problem with the power plug, so as to simplify the maintenance difficulty factor.

Five steps to repair the power adapter!(图1)

  3. In the whole process of testing, if it is found that the resistor pin is vacantly connected, then use a welding tool to solder it up, install the power adapter again, start the test, and the problem is solved. It must be noted that if there is a problem with a certain capacitor during the entire inspection process, you can buy a capacitor with the same model specification and volume (the price is around 5 yuan), and then solder the problematic capacitor out and replace it with a new one. The capacitor can be soldered on. If you find that there is a problem with the IC power management chip, you can deal with it in the same way, naturally, because the IC integrated IC is definitely one of the most critical electronic components in the power adapter, and the capacitance is too complicated.

  4. The optional power adapter is in the whole maintenance process, because many power adapters nowadays have used SMD components. Once the components have problems, the difficulty coefficient of maintenance will become even greater. The output power of the power adapter is expanding day by day, so that the training of electronic components is getting greater and greater. If the quality of the electronic components selected by the power adapter is not qualified, and the PCB wiring is not good, it is very likely to increase the probability of common failures. . Therefore, buying a cost-effective power adapter is very helpful to the reliability of the notebook computer.

  5. Check whether there are any problems with the capacitor, resistor, or inductor. If the capacitor appears to be packaged, it is best to remove and replace it immediately to prevent potential safety hazards.

  is the five major processes of power adapter maintenance. According to these five major processes, people can check the power adapter very well. Naturally, if there is no big problem, try not to open the shell casually. If necessary, it is recommended to find a professional to be more reliable.


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