Circuit board repair is an emerging repair industry. The degree of automation of industrial equipment is getting higher and higher, so the number of industrial control boards in various industries is also increasing. After the industrial control board is damaged, the high cost required to replace the circuit board (less than thousands of yuan, as many as tens of thousands Hundreds of thousands of dollars) have also become a very headache for various companies. In fact, the vast majority of these damaged circuit boards can be repaired in China, and the cost is only 20%-30%of the new board, and the time it takes is much shorter than the foreign setting. Here are the basic knowledge of circuit board maintenance.

Almost all circuit board maintenance has no drawing materials, so many people have doubts about circuit board maintenance. Although various circuit boards are very different, it is unchanged. It is composed of other devices, so the damage of the circuit board must be caused by damage to one of them or certain devices. The idea of circuit board repair is established based on the above factors. Circuit board maintenance is divided into two parts: detection and maintenance, of which detection occupies very important positions. Fix the basic knowledge of each device on the circuit board, until the bad part is found to be replaced, then a circuit board is repaired.

Circuit board detection is the process of searching, determining and correcting the fault of each electronic component on the circuit board. In fact, the entire test process is the test process of thinking and providing logical reasoning clues. Therefore, testing engineers must gradually accumulate experience in the maintenance, testing, and maintenance process of the circuit board and continuously improve the level. General electronic equipment is composed of thousands of components. During maintenance and maintenance, if you can directly test each component in the circuit board to find the problem, it will be very time -consuming. difficulty. Then the maintenance method from the cause of failure to the cause of the failure is an important maintenance method. As long as the circuit board detects the problem, the maintenance is easy. The above is the introduction of the basic knowledge of circuit board maintenance.