The maintenance is not easy to damage the Blu-ray disc machine laser head is the most delicate

Everything has a "life and death", and the laser head of the Blu-ray disc player is no exception. The laser head reads the data by emitting laser light. The laser head searches for the required information by moving up and down during work. It supports the suspension and movement of the spring by two thin springs. But after a long time, the laser head drooped due to gravity. This kind of drooping is invisible to the naked eye, but the two springs are "Spring River Plumbing Duck Prophet", so that the laser head is insufficiently elastic when moving up and down, affecting the focus. Therefore, the loss of the laser is very powerful, and the life of the other components is also shortened, so it is particularly important to maintain it. The delicate laser head should also be ash-proof. Don't look at a small dust. It will block the laser that is emitted, affecting the reading of information, just like the human eye. When you look at things, if you break into the sand, look at it. It won't be clear, if you want to see it clearly, your eyes will feel very tired, as will the laser head.

There is a very simple way to prevent ash. It is to put a disc inside the Blu-ray disc when it is not in use, to cover the laser head and avoid the invasion of dust. If it is a multi-disc machine, put the disc in the tray. The laser head is always stuck on the No. 1 disc when the machine stops working. The laser head should also be shockproof. Its vibration will cause inaccurate focus. When playing sounds and images, there will be pauses. This often affects the service life. Therefore, the machine should be kept stable when using it, especially if it is away from vibration sources, such as subwoofers. And powerful speakers, etc.

Many people like to buy low-priced pirated Blu-ray discs, which seems to work well, but it does not know the impact of the life of the laser head, it is not worth the candle. The working principle of the Blu-ray disc player is similar to the process of reading and reading the information by the human eye. When the line of sight falls on the illegible text or image, the eyes will feel very tired. The long time will inevitably cause the vision to drop, and the laser head What is read is the optical digital information on the disc. When it encounters a ambiguous signal, it has to increase the power and enhance the intensity of the illuminating. Over time, it will be "fatigue excessive." Therefore, the choice of disc is very important. If you can understand some small tricks, you can buy high-quality, low-priced audio and video products in the market.

First, observe the thickness of the disc, the high-quality film is relatively thick, and the inferior film is cut to reduce the cost. The thickness is only 3/4 of the normal film, and the weight is very light. It is observed under the fluorescent lamp, and some films are even translucent. When the machine reads the signal source of such a disc, the laser light emitted is largely lost, so that the sound quality or picture quality is greatly degraded. In addition, you can put the disc into the machine and test the TOC (Topic 0f Content), that is, the speed at which the directory is read. If the first song directory or the first screen is read out quickly, then the disc is basically cleared. It is not. Then use fast forward or rewind to test whether there is a skip or jump or even crash during playback. If there is, then it should be replaced immediately.

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