source:Other information release time:2023-08-22 Hits: Popular:PCB Assembly company
After the PCB circuit board is completed, it is inevitable to encounter faults and performance issues, which involve PCB circuit board detection. So, what are the commonly used methods for PCB board detection?
1. Appearance inspection method
Check if the circuit board is burnt, if the copper coating is broken again, and if the circuit board has any odor; Is there any moldy black phenomenon in the poor welding areas, interfaces, and golden fingers.
2. Principle analysis method
Analyzing the principles of circuit boards, some PCB boards do not require drawings to know their working principles and details.
3. Comparison method
Comparison method is one of the most commonly used methods for detecting circuit boards without drawings. By comparing the status with a well functioning circuit board, faults can be quickly identified.
4. Circuit method
This method of testing can achieve 100% accuracy, but there are many integrated circuit models tested and the packaging is complex, making it difficult to set up a set of circuits for all integrated circuits.
5. State method
The state method is to check the normal working status of each component. If the working status of the component does not meet the normal state, it indicates that there is a problem with the equipment or its affected components.
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