What are the methods for rapid fault detection of PCB circuit boards?Multilayer Pcb Fabrication_Shenzhen StarLight Industrial Development Co., Ltd.

What are the methods for rapid fault detection of PCB circuit boards?Multilayer Pcb Fabrication

source:Other information release time:2023-08-24 Hits: Popular:PCB Assembly company: Share:

　　PCB production is not difficult, but the difficulty lies in troubleshooting after completion. Even industry engineers are quite troubled by the problems encountered during PCB circuit board debugging. So, what are the methods for rapid fault detection of PCB circuit boards?

　　1. The common PCB circuit board faults mainly focus on components, such as capacitors, resistors, inductors, diodes, transistors, field-effect transistors, etc. The obvious damage to integrated chips and crystal oscillators can be observed through the eyes, and the more intuitive method to determine the faults of these components can be observed. There are obvious burning marks on the surface of electronic components with obvious damage. This type of fault can be solved by simply replacing the faulty component with a new one.

　　2. Not all electronic component damage can be observed with the naked eye and requires the use of professional inspection tools for maintenance. Commonly used inspection tools include multimeter, capacitance meter, etc. If the voltage or current of a certain electronic component is detected to be outside the normal range, it indicates that there is a problem with the component or the previous component. Replace it directly and check again to see if it is normal.

　　3. Sometimes when we attach components to a PCB board, we encounter situations where the circuit board cannot detect any issues, but the circuit board cannot function properly. In fact, when encountering this situation, many times it is due to the coordination of various components during the installation process, which may result in unstable performance; You can try to determine the possible range of faults based on current and voltage, and try to minimize the fault area as much as possible; Then try to replace the suspect component until the faulty component is found.

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