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Power adapter disassembly method and maintenance steps

2018-10-10

Since the reform and opening up, the popularity of electrical equipment, many jobs in the society are inseparable from the computer, like Xiaobian, Xiaobian can now write articles here because of the existence of computers, laptops are the equipment often used by Xiaobian. But once there is no electricity, it will not work properly. At this time, the Power Adapter will be used. The power adapter plays a key role in our life. If the device suddenly breaks down, what should I do? Is it directly lost and re-purchased?

Here we will talk about how to remove the power adapter, as well as the steps and maintenance steps of the power adapter.


How to remove the power adapter

How to remove the power adapter, the power adapter is opened four steps

1. The upper and lower covers of the power adapter are injection molded or glued with super glue. Without any screws, they can only be cracked by violence. However, as long as the method is correct, the disassembled power adapter can be completely restored, and there is almost no visible trace without careful observation.

2. Place the lateral side of the power adapter on the white paper, cut it with the electric knife blade along the gap between the upper and lower covers of the power adapter, and then tap the back of the electric knife with a hammer to cut the electric knife between the upper and lower covers of the adapter. At different positions of the gap between the upper and lower covers of the adapter, use the tip of the electrician knife to move along the slit. When a certain part of the upper and lower covers is first cracked, the tip of the blade is deepened, and then the upper and lower covers of the adapter are slowly separated.

3, then open the power adapter of the shell, you can see the copper shield on the outside of the adapter circuit, use the utility knife to cut the tape on the shield, and then use the soldering iron to open the shield and the internal circuit board With a solder joint, the shield can be removed.

4. There is a thick layer of hard plastic film between the shielding layer and the circuit board. After cutting it with a utility knife, it will be fine.

After these four steps are completed, you can repair the power adapter. I hope that you can understand how to remove the power adapter through the introduction of this article, and then apply it in practice.


Detailed steps for removing the power adapter

Demolition power adapter introduction

The power adapter is constructed with a varistor, a fuse, an inductor (also known as a choke), a rectifier bridge, a filter capacitor, an operational amplifier IC (integrated circuit), a temperature probe, a high-power switch, a switching transformer, and a secondary rectifier. Secondary filter capacitors, in addition to the above components, there are adjustable potentiometers and other RC components on the circuit board. The tools/materials required to remove the power adapter include an electrician knife, a hammer, a screwdriver, a soldering iron, a utility knife, and the like. In addition, the upper and lower covers of the general power adapter are injection-molded or glued with super glue, and do not need any screws, so they can only be cracked by violence. However, as long as the method is correct, the disassembled power adapter can be completely restored, and there is almost no visible trace without careful observation.

Demolition power adapter introduction II

Here is the disassembly of the laptop's power adapter. First, place the lateral side of the power adapter on a white paper and use an electric knife blade to cut along the gap between the upper and lower covers of the power adapter. Then, tap the back of the electric knife with a hammer and cut the electric knife between the upper and lower covers of the adapter. Secondly, at different positions of the gap between the upper and lower covers of the adapter, use the tip of the electrician knife to move along the slit. When a certain part of the upper and lower covers is first cracked, the tip of the blade is deepened, and then the upper and lower covers of the adapter are slowly separated. .

Then open the power adapter of the outer casing, you can see the copper shield on the outside of the adapter circuit, cut the tape on the shield with a utility knife, and then solder the shield to the inner circuit board. Click to remove the shield. There is also a thick layer of hard plastic film between the shielding layer and the circuit board. After being cut with a utility knife, the disassembly is completed. The above is the detailed steps of the method of removing the power adapter.

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