【摘 要】
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4.有图像、无声音先检查音频输出线或接头是否良好,然后检查音频DAC电路、静噪控制电路、音频放大电路。检修时应注意区分是两个声道同时无声还是一个无声。若只是一个声道无
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4.有图像、无声音先检查音频输出线或接头是否良好,然后检查音频DAC电路、静噪控制电路、音频放大电路。检修时应注意区分是两个声道同时无声还是一个无声。若只是一个声道无声,故障一般出现在该声道的音频放大电路或输出部分;若两个声道均无输出,则故障可能在整个音频处理电
4. There are images, no sound First check the audio output line or connector is good, and then check the audio DAC circuit, squelch control circuit, audio amplifier circuit. Maintenance should pay attention to distinguish between two channels at the same time silent or a silent. If only one channel is silent, the fault usually appears on the audio amplifier circuit or the output section of the channel; if there is no output on both channels, the fault may occur during the entire audio processing
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