Circuit Board Maintenance Knowledge
Circuit board maintenance knowledge
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 (as little as several thousand yuan, as many as tens of thousands) Several hundred thousand yuan) has also become a very headache for enterprises. In fact, most of these damaged circuit boards can be repaired in China, and the cost is only 20%-30% of the purchase of a new board, and the time taken is much shorter than that of foreign boards. The following describes the basic knowledge of circuit board maintenance.
Almost all circuit board repairs do not have drawings and materials, so many people are skeptical about circuit board repairs. Although various circuit boards are very different, the same thing is that each circuit board is composed of various integrated blocks, resistors, capacitors and It is composed of other components, so the damage of the circuit board must be caused by one or some of the components. The idea of circuit board maintenance is established based on the above factors. Circuit board repair is divided into two parts: inspection and repair, of which inspection occupies a very important position. The basic knowledge of repairing each device on the circuit board is tested, until the bad parts are found and replaced, then a circuit board is repaired.
Circuit board inspection is the process of finding, determining and correcting the failure of each electronic component on the circuit board. In fact, the entire inspection process is a thinking process and a test process that provides logical reasoning clues. Therefore, the inspection engineer must gradually accumulate experience and continuously improve the level during the maintenance, testing, and repair of circuit boards. General electronic equipment is composed of thousands of components. During maintenance and overhaul, it will be very time-consuming and very time-consuming to find problems by directly testing and inspecting each component in the circuit board. difficult. Then the check-in type inspection method from failure phenomenon to failure cause is an important inspection method. As long as the circuit board detects the problem, it is easy to repair. The above is an introduction to the basic knowledge of circuit board maintenance.
