The power adapter is broken. How to repair it?

What if the power adapter breaks and you can't get it and need it urgently? Let's learn how to repair a power adapter. One more skill, one more hope!

1. If the original adapter has problems and cannot be repaired or cannot be repaired in time, other adapters can be used to replace it. As long as the output voltage and power are approximately equal, that is fine. Don't worry too much about the output voltage mismatch. The first step in maintenance is tool preparation. We need multimeters, screwdrivers, welding tools.

2. There are four plastic caps on the power adapter. Do not damage the adapter case as much as possible. If the casing breaks, try to repair it. During the disassembly process, if the external Power Supply is not supplied, try plugging in the battery. If the machine starts normally, there may be a problem with the power cord or adapter. Open the appearance, open the shielding layer, it is best to first check the welding feet, visual observation can be. Intermittent circuit, generally poor contact. Then check with the multimeter to see if the power line is faulty.

3. In the process of test, if it is found that the resistance welding the pin is virtual, repair welding with welding tools, will power adapter installed, boot test, problem solving, it is important to note that if in the process of detection, met one capacitor has a problem, you can buy a the same capacitance type and capacity, take welding, there is a problem of capacitance will be the new capacitor welding on them. If there is a problem with the IC power cord, it can be solved in the same way. Of course, since IC chips are absolutely one of the most important electronic components in power adapters, capacitors are too complex.

4. Since patch components are widely used in current power adapters, it will be more difficult to repair once the components are out of order. The power of the power adapter is increasing day by day, and the test of electronic components is getting bigger and bigger. If the quality of the electronic components used by the power adapter is not up to standard and PCB wiring is improper, it is likely to increase the probability of failure. Therefore, it is important to buy a good quality power adapter!

5. Check whether there is any problem with the capacitance resistance or the inductance. If there is a bump in the capacitance, it is better to replace it in time so as not to leave a hidden danger.

Best regards,

Shirley Liang