The common sense of circuit board maintenance is an important measure to ensure the long-term stable operation of the circuit board and reduce the failure rate. The following are some detailed circuit board maintenance common sense:
Regular cleaning and inspection
1. Dust cleaning
Frequency: It is recommended to clean the circuit board once a quarter to remove dust and impurities accumulated on the surface. For places with harsh working environment or more dust, the cleaning frequency can be appropriately increased.
Method: You can use a special cleaning fluid for circuit board for cleaning. This cleaning fluid can effectively remove dirt without damaging the circuit board. After cleaning, use a hair dryer to dry the circuit board thoroughly to prevent residual moisture from causing short circuits.
Component inspection
Observation: During the cleaning process, carefully observe whether the electronic components on the circuit board have obvious physical damage, such as component cracks, disconnected circuits, etc. At the same time, pay attention to check whether the electrolytic capacitor has bulging, leakage, etc., which are signs of component aging and damage.
Replacement: For damaged or aged components, they should be replaced in time to ensure the overall performance of the circuit board. Especially for electrolytic capacitors, their lifespan is limited, and they should be replaced after working for about ten years.
Heat dissipation management
1. Check the thermal grease
For high-power devices coated with thermal grease, the status of the thermal grease should be checked regularly. The main function of thermal grease is to help the device dissipate heat and prevent damage due to excessive temperature.
If the thermal grease is found to be dry or ineffective, it should be removed and re-applied with new thermal grease in time to ensure good heat dissipation.
2. Optimize the heat dissipation environment
In addition to checking the thermal grease, you should also pay attention to the overall heat dissipation environment of the Circuit Board. Make sure there is enough space around the Circuit Board for air circulation to avoid being in a closed or high-temperature environment for a long time.
For Circuit Boards that require higher heat dissipation requirements, consider installing auxiliary heat dissipation equipment such as cooling fans or heat sinks.
Standard operation and maintenance
1. Avoid mechanical damage
When operating the Circuit Board, avoid using sharp tools or objects to directly contact the surface of the Circuit Board to prevent scratches or damage to the Circuit Board and components.
When plugging or unplugging the connectors on the Circuit Board, ensure that the force is moderate to avoid excessive force that may damage the connectors or deform the Circuit Board.
2. Regular testing and recording
Perform functional and performance tests on the Circuit Board regularly to ensure that it meets the design requirements. During the test, the test results and fault phenomena should be recorded in detail for subsequent analysis and processing.
For important Circuit Boards or systems, it is recommended to establish a maintenance file to record the time, content, results and other information of each maintenance in order to track the operation status and maintenance history of the Circuit Board.
3. Follow the user manual
When using and maintaining the Circuit Board, the regulations and requirements in the product manual should be strictly followed. The user manual usually contains detailed information on the installation, debugging, maintenance, etc. of the Circuit Board, and is an important basis for guiding users to correctly operate and maintain the Circuit Board.
In summary, the common sense of Circuit Board maintenance covers multiple aspects such as regular cleaning and inspection, heat dissipation management, and standardized operation and maintenance. By following these common sense and applying them flexibly in combination with actual conditions, the service life of the Circuit Board can be effectively extended and its operating stability can be improved.
