How to maintain the circuit board in use?
The board should be regularly maintained during use. To ensure that the board works in a good state and reduce the board failure rate, it is important to understand the maintenance of the board during use. Can be divided into two methods of semi-maintenance and annual maintenance.
First, semi-maintenance: clean the dust on the circuit board every quarter, use the special cleaning liquid for the circuit board to clean. After cleaning the dust on the circuit board, blow the circuit board with a hair dryer; observe the electronic components in the circuit. There is no trace of high temperature, and there is no leakage of electrolytic capacitors. If this happens, it should be replaced.
The second is annual maintenance: cleaning the dust on the circuit board; sampling the electrolytic capacitor capacity in the circuit board, if it is found that the capacity of the electrolytic capacitor is less than 20% of the nominal capacity, it should be replaced, the general electrolytic capacitor The life should be replaced after a decade of work to ensure the performance of the circuit board; for high-power devices coated with thermal grease, the thermal grease should be checked for dryness. For dry solids, the dry heat should be dried. After the grease is removed, apply a new thermal grease to prevent the high-power devices in the board from burning out due to poor heat dissipation.