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故障现象:为朋友修理一台长虹G2967型彩电。据朋友说:这台电视机工作一会儿就自动关机,绿色指示灯点亮后再也不能“二次”开机,必须关断总电源稍等一会儿才能“二次”开机。工作几分钟后,又重新出现自动关机的故障。检修过程(采用“万能电源厚膜块”):首先,用“直观法”检查元件在路状态。直接查看相关元件是否有异常?如:爆裂、冒烟、发高烧等现象,
Symptoms: a friend Changhong G2967 repair color TV. According to a friend, this TV set will automatically shut down when it works for a while. After the green indicator is lit, it can not be turned on again. The total power supply must be turned off for a while before it is switched on again. After a few minutes of work, the problem of automatic shutdown reappears. Repair process (using “universal power thick film block ”): First, use “Intuitive method ” check the components in the road state. Directly view the relevant components are abnormal? Such as: burst, smoke, fever and other phenomena,