I believe that many customers of circuit board factories will have such problems. How should PCB circuit boards be maintained? How can the life of circuit boards be longer? Now, Senyan circuit board manufacturers will analyze the maintenance of PCB circuit boards for you. question.
The PCB circuit board adopts the method of printing etching resist to make the circuit and the drawing of the circuit. According to the number of circuit layers, the circuit board factory can be divided into single-sided circuit boards, double-sided circuit boards and multi-layer circuit boards. Common multi-layer boards are generally 4-layer boards or 6-layer boards, and complex multi-layer boards can reach more than a dozen layers.
There are both high-speed logic circuits and linear circuits on the circuit board, and they should be separated as much as possible; and the ground wires of the two should not be mixed, and should be connected to the ground wire of the power supply terminal respectively. To maximize the ground area of the linear circuit. So how should the PCB circuit board be maintained?
一、Half-year maintenance:
Observe whether the electronic components in the circuit produced by the circuit board factory have experienced high temperature traces, and whether the electrolytic capacitor has bulged and leaked; if so, it should be replaced.
Clean the dust on the PCB circuit board every quarter with a special cleaning solution for the PCB circuit board. After cleaning the dust on the PCB circuit board, use a hair dryer to dry the PCB circuit board.
二、Annual maintenance:
1. Clean the dust on the PCB circuit board.
2. Sampling check the capacity of the electrolytic capacitor in the PCB circuit board. If the capacity of the electrolytic capacitor is found to be lower than 20% of the nominal capacity, it should be replaced. work performance.
3. For high-power devices coated with heat-dissipating silicone grease, check whether the heat-dissipating silicon grease is solid. For dry-solid heat-dissipating silicon grease, remove the dried heat-dissipating silicon grease and apply new heat-dissipating silicon grease to prevent the PCB circuit from The high-power devices in the board burn out due to poor heat dissipation.
