Basic knowledge of PCB circuit board

The PCB circuit board uses an insulating board as the base material is cut into a certain size. At least one conductive pattern is attached to the PCB circuit board holes (such as component holes, fastening holes, metallized holes, etc.) are used to replace the conventional electronic components of the device. The chassis of the device the interconnection between electronic components. PCB circuit board repair is an emerging repair industry. In recent years, the degree of automation of industrial equipment is getting higher 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 PCB circuit board (a few thousand yuan, many are Tens of thousands hundreds of thousands of yuan) has also become a headache for enterprises. In fact, most of these damaged PCB circuit boards can be repaired in China, the cost is only 20% -30% of the cost of buying a new board, the time it takes is much shorter than the time of foreign board fixing. 

Here are the basics of PCB circuit board repair:

Almost all PCB circuit board repairs have no drawing materials, so many people are skeptical of PCB circuit board repairs. Although various circuit boards vary widely, the same thing is that each PCB circuit board is made of various integrated blocks resistors. , Capacitors other components, so PCB circuit board damage must be caused by damage to one some of the components, the PCB circuit board repair idea is based on the above factors. Circuit board maintenance is divided into two parts, inspection maintenance, of which inspection occupies a very important position. Check the basic knowledge of each component on the PCB circuit board until the bad parts are found replaced, then a PCB circuit board is repaired.

 PCB circuit board inspection is the process of finding, determining correcting every electronic component fault on the PCB circuit board. In fact, the entire testing process is a thinking process a testing process that provides logical inference clues. Therefore, the testing engineer must gradually accumulate experience continuously improve the level during the maintenance, testing, overhaul of the PCB circuit board. General electronic equipment is composed of thousands of components. During maintenance repair, if you directly test each component in the PCB circuit board to find the problem, it will be very time-consuming, it will also be implemented. very difficult. Then the check-in type inspection method the failure phenomenon to the cause of the failure is an important maintenance method. As long as the PCB circuit board detects the problem, repair is easy.

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