彩电发生的软故障中,多数是因为元器件参数随温度的升高而产生过量漂移造成的。当我们将这些元件拆下来检查时,它们又表现“正常”,这很容易使修理工作走弯路。在多年的检修实践中,本人采用升降温检查法对付这类因元件参数温漂造成的软故障,效果明显。所谓“升、降温法”,就是人为地升高或降低有嫌疑元器件的“体温”,让存在参数温漂严重者尽快暴露出来的检查方法。一般来说,易发生温漂问题的元器件主要是半导体元件(如:二极管、三极管、集成电路、电容器等)。在采用“升、降温法”时,首先应知道这些 The color TV soft fault occurs, the majority is due to component temperature drift caused by excessive drift caused. When we removed these components for inspection, they again showed “normal”, which easily detoured the repair work. In many years of overhaul practice, I use the rising temperature check method to deal with such components due to temperature drift caused by soft faults, the effect is obvious. The so-called “rising, cooling method” is to artificially increase or reduce the suspect components of the body temperature, so that there is a serious temperature drift parameters were exposed as soon as possible inspection methods. In general, the components prone to temperature drift problems are mainly semiconductor components (such as: diodes, transistors, integrated circuits, capacitors, etc.). In the use of “rising, cooling method”, we should first know these