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一、为什么用示波器维修PDP彩电在PDP(等离子)彩电维修中,示波器是判断故障部位和分析故障机理的重要仪器,相对于万用表,示波器具有以下优点。1.能准确判断万用表难以查清的故障示波器是反映信号瞬变过程的仪器,把信号波形变化直观显示出来,如PDP彩电中电源电路的振荡波形、视频信号波形、音频信号波形、时钟信号波形,以及MCU电路输出的PWM脉冲等,都能在示波器的荧屏上
First, why use oscilloscope to repair PDP TV PDP (plasma) TV repair, the oscilloscope is to determine the fault location and analysis of the failure mechanism of important instruments, relative to the multimeter, the oscilloscope has the following advantages. 1 can accurately determine the multimeter is difficult to find out the fault oscilloscope is a signal reflecting the transient process of the instrument, the signal waveform changes visually displayed, such as PDP TV power supply circuit in the oscillation waveform, video signal waveform, audio signal waveform, the clock signal waveform , As well as the MCU circuit output PWM pulse, etc., can be on the screen of the oscilloscope