Making a PCB board is not a simple process to finish the board, just drill a hole and punch in the components. The production of the PCB board is not difficult, the difficulty lies in the troubleshooting after the production is completed. Whether it is a personal hobbyist or an industrial engineer, it is also quite a headache for PCB circuit boards to encounter problems when debugging, just like programmers encountering BUG.
Some people have a strong interest in debugging PCB circuit boards, just like programmers are solving BUG, there are many common PCB circuit board problems. Common problems are except for circuit board design, damage to electronic components, short circuits, and quality of components. PCB circuit board disconnection problems are not rare.
Common PCB circuit board problems are mainly concentrated on components, such as capacitors, resistors, inductors, diodes, triodes, field effect tubes, etc. The integrated chips and crystal oscillators are obviously damaged. And the more intuitive way to judge the problems of these components can be through eyes to observe. There are obvious burn marks on the surface of the electronic components that are obviously damaged. Such problems can be solved by directly replacing the problematic components with new ones.
Of course, not all electronic component damage can be observed with the naked eye, such as the resistors, capacitors, diodes mentioned above. In some cases, the damage cannot be seen from the surface, and it needs to be repaired with professional inspection tools. Commonly used inspection tools include multimeters, capacitance meters, etc. When the voltage or current of a certain electronic component is detected to be out of the normal range, it indicates that there is a problem with the component or the previous component. Replace it directly and check to see if it is normal.
If the component is broken, it can be detected whether it is observed with eyes or detected with an instrument. But sometimes when we install components on the PCB board, we will encounter problems that cannot be detected while the circuit board does not work properly. Many novices encounter this kind of problem and they have no choice but to make a new board or buy a new one. In fact, in this situation, in many cases, the performance of the components may be unstable due to the coordinated work of the components during the installation process.
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