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故障现象：冬天，某小区各频道电视信号有条纹干扰，特高频段比甚高频段干扰明显，晚L比白人十扰明而。故障分析：此类故障是有线电视系统某级放大器失控，造成交互调干扰，产生非线性失真，产生的原因是因为冬天气温低，电缆的温度特性变化，超出放大器自动电平和自动斜?..
Symptoms: In winter, the TV signal of a certain district has stripe interference in each channel, and the extra high frequency band interferes with the high frequency band obviously. Late L is more disturbing than the white one. Failure Analysis: This type of failure is a cable television system, some amplifier out of control, resulting in mutual interference, resulting in nonlinear distortion, the reason is because the winter temperature is low, the temperature characteristics of the cable changes beyond the amplifier automatic level and automatic ramp?