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How to solve the noise of LCD TV?
Source: http://xrqa.cn Author: Mianyang Changhong air conditioning after sales maintenance update date: 2015-09-09 20:34

How to solve the noise of LCD TV?

With the development of the times, more and more users use LCD TV. However, in the use of LCD TV, some common faults are hard to avoid, such as noise, so how to do if there is noise in LCD TV?

Mianyang Changhong TV after-sales service center teaches you how to solve the problem. The noise is caused by the communication sound. This is because part of the LCD TV power plug are three-phase, respectively, is composed of live wire, zero line and ground wire. The set-top box is a two-phase power plug with no ground wire. Under normal conditions, there is no voltage on the ground wire (shield wire) of cable TV signal line, and the TV will not produce AC sound. But in part of the home measurement found that there is a voltage between the shielding wire outside the cable TV signal line and the power ground wire used by the TV set. At this time, the AC sound is generated. Sometimes the buzzing sound is very harsh, especially when it is quiet at night. The voice may be too low for you to hear the voice of the program. It can be completely solved by installing an isolator.

The other is that the user uses the wrong method. Solution: turn the volume of the set-top box to the maximum (generally the maximum is 31). After the adjustment, the set-top box will store the volume you have adjusted. In the future, the volume of the set-top box does not need to be adjusted. And the volume just needs to adjust the volume of the TV, the AC sound will be reduced a lot.