电视机使用久了难免发生故障。其实电视机在发生故障前,往往可以从其先期征兆预先知道。 若能及时发现和了解这些先兆,及时进行检查修理,对于电视机的使用,维护和延长其使用寿命将是十分有益的,也是非常必要的。 1.屏幕上突然出现一条水平方面 TV used for a long time will inevitably fail. In fact, before the failure of the TV, it is often possible to know in advance from its previous symptoms. It will be very beneficial and necessary for the use, maintenance and prolongation of the service life of the television sets if they detect and understand these aura in time and conduct timely inspection and repair. A sudden horizontal screen appears