开关型稳压电源由于功耗小、效率高、温升低、稳压范围宽、重量轻等优点而被广泛用于彩色电视机,但电路复杂导致分析、维修困难,使该部分故障几乎占彩电故障的60%~70%,为了能准确、快速地检修故障,了解故障特点、掌握检修方法是必要的。图1使用隔离变压器需要指出的是,由于彩色 Switching power supply due to small power consumption, high efficiency, low temperature rise, a wide range of voltage regulator, light weight and other advantages are widely used in color television sets, but the circuit complexity led to analysis and maintenance of the fault so that part of the failure accounted for almost Color TV failure of 60% to 70%, in order to accurately and quickly overhaul the failure to understand the characteristics of the failure, master maintenance methods are necessary. Figure 1 The use of isolation transformers It should be noted that, due to color