PCB News - Basic knowledge of PCB circuit board for PCB proofing

PCB proofing PCB circuit board is based on an insulating board, cut into a certain size, with at least one conductive pattern attached to it, and holes (such as component holes, fastening holes, metalized holes, etc.), to replace the previous devices The chassis of the electronic components, and realize the interconnection between the electronic components.

PCB circuit board repair is an emerging repair industry. In recent years, the degree of automation of industrial equipment has become higher and higher, so the number of industrial control boards in various industries has also increased. After the industrial control board is damaged, the high cost of replacing the PCB circuit board(as little as several thousand yuan, as many as Tens of thousands or hundreds of thousands) has also become a very headache for enterprises. In fact, most of these damaged PCB 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 introduces the basic knowledge of PCB circuit board repair.

PCB Proofing Almost all PCB circuit board repairs do not have drawings and materials, so many people are skeptical about PCB circuit board repairs. Although various circuit boards are very different, the same thing is that each PCB circuit board is composed of various integrated blocks., Resistors, capacitors and other components, so the damage of the PCB circuit board must be caused by one or some of the components. The idea of PCB 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 PCB circuit board is tested, until the bad parts are found and replaced, then a PCB circuit board is repaired.

PCB circuit board inspection is the process of finding, determining and correcting the failure of each electronic component on the PCB 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 of PCB circuit board maintenance, testing, and repair. General electronic equipment is composed of thousands of components. During maintenance and overhaul, it will be very time-consuming to find problems by directly testing and inspecting every component in the PCB circuit board. very difficult. Then the check-in type inspection method from the fault phenomenon to the cause of the fault is an important method of inspection and repair. As long as the PCB circuit board detects the problem, it is easy to repair.

The above is an introduction to the basic knowledge of PCB circuit boards for PCB proofing. Ipcb is also provided to PCB manufacturers and PCB manufacturing technology