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故障现象 加装遥控器的彩电使用一段时间后出现跑台现象。 分析与检修 彩电跑台的主要原因有:(1)遥控板0～30V调谐电压电路中的积分滤波电容器漏电,使输出的调谐电压不稳定;(2)主机心AFC移相调谐回路失谐,不能随频
Symptom After installing the remote control color TV use a period of time after the phenomenon of treadmill. The main reasons for the analysis and maintenance of color TV sets are as follows: (1) Integral filter capacitor leakage in the 0 ~ 30V tuning voltage circuit of the remote control board causes the output tuning voltage to be unstable; (2) Can not follow the frequency