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All PCB circuit board repair knowledge is here!

2024-03-18

With the application of PCB circuit boards in various major electronic products, PCB Circuit Board repair has also become a popular industry. Today, Brother Xiaojie will briefly share his views on the current PCB circuit board maintenance.
At present, there are various industries that use circuit boards in our country. In the early stages of production, the production process and raw materials will be determined according to their own use needs. However, as the frequency of use of finished products increases, circuit board failures will occur more or less. In the past, there will be circuit board failures. Many people will directly replace the circuit board, but the high cost of replacing the PCB circuit board (ranging from a few thousand yuan to tens of thousands or hundreds of thousands of yuan) has also become a very headache for various companies. However, these damaged circuit boards can be repaired in China, and the repair costs are relatively affordable, accounting for only 20%-30% of new boards. For some high precision equipment that requires international ordering of boards, circuit board repairs will be more expensive. Fast.
The first step: circuit board inspection
At present, many users of finished equipment basically do not have the design drawings of the circuit board in their hands after a circuit board failure occurs. Many people are skeptical about PCB circuit board repair. Although various circuit boards are different, one thing remains unchanged. PCB circuit boards are composed of various integrated blocks, resistors, capacitors and other components, so damage to the PCB circuit board must be caused by damage to one or some of the components. The idea of Printed Circuit Board repair is based on the above factors. Get up. Maintenance staff will first inspect the circuit board, find out the source of the problem step by step, and replace parts.
Step Two: Parts Replacement
After finding the source of the circuit board failure, the maintenance engineer will recommend corresponding replacement parts based on the performance of the original parts based on the usage conditions of the entire circuit board. Users can choose to replace them according to their own needs. The process of replacing parts is simple here. Too much explanation.
Step 3: On machine testing

On machine inspection of the circuit board after repair is the key to judging the success of the repair. Here, Xiao Jiege recommends that maintenance engineers gradually accumulate experience and continuously improve their level during the maintenance, testing and overhaul of PCB circuit boards. . General electronic equipment is composed of thousands of components. During maintenance and repair, it will be very time consuming and difficult to implement if you directly test and inspect every component in the Pcba Circuit Board one by one to find problems. very difficult. Then the correct maintenance method from the fault phenomenon to the cause of the fault is an important maintenance method. As long as the problem with the PCB circuit board is detected, repair will be easy.

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