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1 故障现象 通电后指示灯亮,示波管没有光点,旋转各旋钮均不起作用。 2 检修方法 如附图所示。
1 Fault phenomenon When the power is on, the indicator light is on, and the oscilloscope tube has no light spot. Rotating each knob does not work. 2 Maintenance methods As shown in the attached drawings.