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在日常维修电视机的过程中,故障率最高的是开关电源和行输出电路。以下就行输出电路的行逆程脉冲波形及故障时异常波形进行分析。1.行扫描电路及等效电路工作原理(典型波形)分析图1是一典型的行扫描电路的基本电原理图。图
In the daily maintenance of the TV process, the highest failure rate is the switching power supply and the line output circuit. The following line of output circuit line back pulse waveform and fault abnormal waveform analysis. 1. Line Scanning Circuits and Equivalent Circuit Operation (Typical Waveform) Analysis Figure 1 shows the basic electrical schematic of a typical line scan circuit. Figure