PCB circuit board with the continuous development of electronic products, a variety of equipment failures have greatly increased the frequency of on the maintenance of personnel requirements are also constantly upgrading, especially to contact the circuit board maintenance staff, a lot of people do not know how to start, do not know how to learn, in fact, want to learn the PCB circuit board maintenance must have a certain number of electrical, analog and electrical basis.
PCB circuit board schematic diagram as a blueprint to achieve the circuit user needs of the function. PCB circuit design mainly refers to the layout of the design, the need for internal electronic components, metal wire, through the hole and external connection of the layout, electromagnetic protection, heat dissipation, crosstalk and other factors.
Circuit board operators need to do not know fast, medium speed, low speed logic circuit, placed in close proximity to the connector, while the vulgar logic and memory, should be placed in the principle of the connector range. In this way, it is advantageous to reduce the mutual impedance coupling, radiation and crosstalk reduction. PCB Circuit Board Maintenance Note what is it? The following simple
Introduce the Board maintenance note:
1, before the maintenance of anti-static work, such as wear good anti-static overalls and shoes, wear a good anti-static wrist strap. Maintenance of the Workbench also do a good anti-static treatment, such as adding anti-static radio surface.
2, pay attention to the safety of electricity, including the circuit board to add electricity maintenance to take into account the maximum capacity of the circuit board.
3, when the need to contact the strong electricity must pay attention to personal safety, do a good job to prevent strong electricity measures.