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1.设计印刷电路板可根据电原理图,考虑整机的结构和安装,画出草图。一般步骤是: (1)根据机壳先确定电路板面积和形状(尽可能采用矩形)、电路板外部连接和安装方法。电路板外部连接是指主板与支路板或其他器件(如喇叭、插座、电池仓正负极片等)的联接、分导线焊接和插接。安装方法分螺钉固定和插座等,固定位置不应妨碍布线。垂直安装时发热元件应布置在上端或边沿,
1. Design printed circuit board according to the electrical schematic diagram, consider the structure and installation of the whole machine, draw a sketch. The general steps are: (1) According to the chassis to determine the circuit board area and shape (as rectangular as possible), circuit board external connection and installation methods. Circuit board external connection refers to the motherboard and branch board or other devices (such as speakers, sockets, battery compartment, etc.), the sub-wire welding and docking. Installation methods sub-screws and sockets, fixed location should not interfere with the wiring. Vertical installation of heating elements should be arranged at the top or edge,