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开宗明义:换台关机是指彩电在切换频道时发生自动关机现象。这种故障不属于常规故障,检修起来有一定的难度,特别是对初学者来说,遇此故障往往不知从何处下手。本文总结了在实践中遇到的两个维修实例,介绍给大家,希对读者有所帮助。例1:长虹 C2989P 彩电,能正常收看。但在转换频道时有时会“自动关机”,有时一切正常,没有规律性。“自动关机”后待机指示灯亮。分析与检修:根据故障现象可基本判断电源电路
Claiming: For Taiwan off refers to the color TV in the channel switching occurs automatically shut down phenomenon. This failure does not belong to the conventional fault, repair up a certain degree of difficulty, especially for beginners, often fail to know where to start. This article summarizes the two maintenance examples encountered in practice, introduced to everyone, hope to help the reader. Example 1: Changhong C2989P color TV, can watch normally. But sometimes in the conversion channel “automatic shutdown”, and sometimes everything is normal, there is no regularity. Standby indicator lights after “Auto power off”. Analysis and Maintenance: According to the fault phenomenon can be basically determine the power circuit