一、微机检修的特点在微机系统中,为减小印制板所占用的空间,主板一般采用双层、四层甚至六层结构;有些专用集成块引脚多达上百条,引线间距窄至1.27mm并从四面引出;电路板上的微型电阻、电容、电感,均采用贴面焊接方式。真正能拆卸的元件很少,若要代换就更难了。因此,微机系统 First, the characteristics of computer maintenance In the computer system, in order to reduce the space occupied by the printed circuit board, the motherboard generally double, four or even six-tier structure; some ASIC blocks up to hundreds of pins, lead spacing is narrow To 1.27mm and leads from all sides; circuit board micro-resistance, capacitance, inductance, are used veneer welding. Really removable components rarely, to replace more difficult. Therefore, the microcomputer system