When we buy TVs for home decoration, many friends have this idea that a smaller TV will protect eyesight. After reading today's sharing, I hope you have a scientific understanding! The following are the tips for buying home TVs shared by Encyclopedia Knowledge Network. Friends in need can learn about it. I hope it can help everyone. Contents of this article 1. How to choose a TV for home 2. What is the appropriate size of a TV? 3. What are the common faults of TV? 1How to choose a TV for home1. Look at the brand and choose well-known brands to ensure quality. 2. Look at the size. The size of the TV should be determined according to the area so that it looks more coordinated. 3. Look at the picture quality. The picture quality of the TV is the most important point. We can look at the clarity of the TV, whether the TV picture is smooth, and whether the text is clear. These are all points we need to pay attention to. 2What is the appropriate size of a TV?Generally, the size to buy is determined based on the area of your living room and viewing distance. In fact, the relationship between size and distance is not absolute. The size of the TV is related to the distance and resolution of the video source. At present, the TV signal sources, such as CCTV and IPTV, have basically reached 720P. For a 720P video source, taking a living room with a viewing distance of 4 meters as an example, a 65-inch or 70-inch TV is more suitable. Notice: The smaller the TV, the better it protects eyesight. When the video picture is moderate, the larger the screen and the higher the resolution, the more comfortable the human eye will be, and it will protect eyesight. 3What are the common faults of TV?1. The whole machine has no power: The main reason for this failure is that the internal and external power supplies are not connected properly, and the external power supply failure rate is higher. 2. Black screen: no backlight, but the power light is green. 3. There is sound but no image: This is mostly because the high-frequency head is faulty or the color mode is not adjusted properly. 4. Horizontal and vertical bars appear: The main cause of this fault is unstable voltage or poor contact of the signal source. |
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