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引进的武器装备缺乏原始设计图纸,为维修工作带来诸多不便,因此通过逆向工程研究装备的工作原理十分有必要。三极管作为模拟电路中的核心元件,因其工作状态多,旁路电路复杂,成为逆向工作的重点研究对象。基于三极管的特点,分析了其测绘阶段的工作原理,结合其故障诊断方法及成因推断,研究了测试维修时混频、开关和衰减器三种应用电路的故障定位方法,完成了大量准确性高、可读性强的测绘和修理工艺,大大提高了测试修理的效率,为国产化奠定了坚实的基础。
The introduction of weapons and equipment lack of original design drawings, maintenance work for a lot of inconvenience, so by reverse engineering research equipment work principle is very necessary. Transistor as a core component of analog circuits, because of its work status, the bypass circuit is complex, become the focus of research work in reverse. Based on the characteristics of the triode, the working principle of the mapping stage is analyzed. Combined with its fault diagnosis method and its causal inference, the fault location method of the three application circuits of mixing, switching and attenuator is researched, and a great deal of high accuracy , Readability mapping and repair process, greatly improving the efficiency of test and repair, laid a solid foundation for the localization.