三极管在电路中的作用是显而易见的,它往往处于某一电路的核心地位,即使是在当前 FC 总线彩电高度集成和高度智能化的机心里面,其外围的电路也不乏三极管的影子。鉴于集成电路损坏的概率小一些,因此对三极管和外围电路的测量和判断显得更加重要。本文针对这一问题,结合实际谈谈怎样通过测量来判断三极管及其外围电路故障的方法,希望对初学者打好基础、理论联系实际和提高分析问题的能力起到积极的作用。一、在路测量三极管的极间电阻这是最简易的测量方法。在关机状态下,用万用表 The role of the transistor in the circuit is obvious, it is often at the heart of a circuit, even in the current FC bus color TV is highly integrated and highly intelligent inside the heart of the circuit there is no lack of transistor shadow. Given the smaller probability of damage to the integrated circuit, so the transistor and the peripheral circuit measurement and judgment is even more important. This paper addresses this issue, combined with the actual talk of how to measure the transistor and its peripheral circuit fault method, hoping to lay a good foundation for beginners, theory and practice to improve the ability to analyze problems play a positive role. First, measuring the transistor in the road between the very resistance This is the easiest way to measure. In the off state, with a multimeter