1. In the course of the use of lcd tv, if there is a problem with no sound or image on the television, and the television light flashes and turns into a long light, the television flashes white light at the moment when it is on, the failure of the television should be due to the damage to the backlight drive of the television, but it is not precluded by the problem of the television backlight tube。
2. There was no sound, no image, no light after the television was turned on. This failure should be due, first and foremost, to problems with the power panels and, again, possibly due to the irregularity of the cpu component of the television。
3. Television lights cannot be turned on after flashing. The failure of this lcd television should be distinguished by the fact that the cpu bus on the tv is not working properly or by the ic exposure of lcd tv。
4 there is a problem with a screen-full patch or a screen-full vertical panel, which is usually a television buffer, at which point a pair of buffers can be replaced or an ic line can be measured for failure and subsequently replaced。
The most vulnerable problems of lcd tv are the dark bands and wires, which, when such problems arise, can be summarized as a television screen problem. This may be due to the fact that the lcd screens are too hot for television, which can be repaired using a flat-head iron cushioned thermal insulation media, resulting in the separation of the cf and the screen links。
6 in the case of lcd television, which is connected to the turn-off, but after a certain period of time, the lack of light and sound is generally due to the failure of the reverse circuits of the television screen components, in addition to the ageing of the television pv or damage to its high voltage panels. At this point, maintenance can be performed using the elimination of the average of the pressure plate feedback into the circuit to determine whether the pressure plate itself is in question。
