行业知识

Do you know the characteristics of recycling mobile phone motherboards?

What are the characteristics of recycling mobile phone motherboards ? Is there a little expectation? Let's let Xiaobian bring you to know.

Usually, when people buy mobile phones, they often only pay attention to the performance indicators of the motherboard chipset, and ignore the problem of material selection that affects the quality of the whole motherboard. In fact, the quality of a motherboard on the motherboard will directly affect the overall performance of the motherboard, high-quality materials can better play the performance of the CPU, and vice versa, not only the performance of the whole machine will be reduced, more serious will Lead to frequent crashes. Many people do not know how to judge when facing the various components on the motherboard. Below we will introduce the names, functions and precautions of the four most important components on the motherboard.

First, the motherboard chipset motherboard chipset is like the brain of the motherboard, is an important indicator to measure the performance of a motherboard. It is the core component on the motherboard. Some motherboards are simply named after the chipset they use, such as Intel's i810, 850, VIA's KT133, KT266 and so on. This further illustrates the importance of the motherboard chipset. The motherboard chipset is responsible for the exchange of information between the central processing unit and external devices, and is a bridge between the central processing unit and the peripheral devices. There are a lot of media mentioned above about the various models and performance indicators of the chipset, so we won’t say more here.


Second, the capacitors and capacitors are highlighted here. You can see at a glance at the top of the motherboard. A bunch of arranged cylindrical objects next to the CPU socket is a branch of the capacitor family. Because high-quality capacitors are beneficial to the long-term stable operation of the machine, its importance can not be ignored. The common capacitors on the motherboard are mainly divided into small chip capacitors, solid tantalum capacitors and small aluminum electrolytic capacitors.
The chip capacitors are mostly brown in color and are concentrated in the CPUSocket slot. Tantalum capacitors are mostly chip-type. Compared with ordinary electrolytic capacitors, they can prolong the service life, have higher reliability, and are not easily affected by high temperature. They are high-quality capacitors. The more the tantalum capacitor is used on the recycled mobile phone motherboard, the better the material of the motherboard is, and the quality of the motherboard is correspondingly higher. Pay more attention when purchasing. As the last aluminum electrolytic capacitor, we mainly pay attention to those vertical aluminum electrolytic capacitors next to the CPU socket. The capacitor used in a better motherboard is generally not lower than 2200μF6.3V.


Third, the resistance resistance can be said to be the most widely distributed electronic component on the main board. It mainly bears the role of voltage limiting current limiting and voltage dividing and shunting. It can also form circuits with other capacitors, inductors and transistors for impedance matching and conversion. Resistance filter circuit, etc. The resistors we see on the motherboard are mainly divided into: chip resistors, thermistors and chip resistor arrays. The chip resistors are distributed on the front and back sides of the main board, and are also the smallest resistors on the main board. The labels are mostly R, and the shapes are black flat small squares. The pin soldering pieces on both sides are silver-white. Thermistors are mainly used to test the temperature of the CPU. They are usually located in the Socket slot. Some are shaped like chip resistors, and some are shaped like a "small ball" in a vertical package. When the resistor is purchased, it is necessary to observe whether there is a flying wire between the resistors (the component and the component are directly connected by wires), because this is related to the process quality of the whole motherboard.


Fourth, CMOS battery When it comes to CMOS batteries, we must be familiar with it. It provides power to the CMOS circuit to maintain the basic configuration information of the motherboard. Its shape is very similar to a "button". When shopping, pay attention to whether the battery is new or not.
The above is some of the references we provided for you before purchasing the motherboard. Of course, you must first collect some relevant product information before purchasing the motherboard. I believe that you will be able to purchase genuine products.

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