Do you also encounter some failures in the private home theater system? These failures may be caused by negligence or inexperience when installing the connection. Today we list the following common faults in home theater systems and explain them briefly.
If the TV program is not receiving properly, first check if the connection between the ground (wireless), cable, satellite or the set-top box and the TV is correct. If the user has an SD set-top box, check to see if the corresponding connection port of the TV is connected and whether it is tuned to the corresponding channel in the area.
If the user has a high-definition set-top box and the TV is also an HDTV-class high-definition TV, check to see if these TV set-top boxes are connected to the TV via HDMI, DVI or component video ports. In addition, if the HD AV signal is connected to the TV through a private home theater receiver, then it should be confirmed whether the private home theater receiver has been turned on and adjusted to the appropriate input level to ensure that the HD signal reaches the TV smoothly.
The image quality of the program is poor. If the image on the screen is snowflake, this may be abnormal on the cable connection, or the contact at the connection is not good, or the cable used may be inferior. Users may wish to replace the different cables and try to see if the results improve. If the user is using a cable TV reception method, the cable operator will provide a free service, check the cable of the cable or have something wrong with the connection. If the ground (wireless) TV reception method through the antenna is adopted, the user can improve the TV reception effect by changing the position and direction of the antenna, or simply try to change the antenna with good quality.
Image image is distorted or colorless If the image displayed on the screen is distorted or black and white, the user should first test whether all the different sources are not good for the color of the displayed image. If yes, you should enter the corresponding function mode of the TV to confirm whether the color setting of the TV itself is adjusted to the normal parameter range, whether it is in the best state, and if it is not adjusted, re-adjust it. If all the settings for the color have been adjusted on the TV, then check to see if there is a problem with the way the DVD player is connected to the TV via the component video port.
It should be confirmed whether the connection between the red, green and blue of the component video port of the DVD player matches the component video port of the TV, because if the light in the system placement area is dark, it is difficult to identify the cable connection in the back of the system. It's easy to make mistakes. This kind of mistake is quite common and often occurs.
HDMI Connection Failure Users sometimes use a home theater system when a DVD player (or other source device) is connected to the TV's HDM1 input through its HDMI output, and both devices are turned on. There will be no image display on the TV. This happens sometimes because the DVD player and the TV are connected via the HDMI port, but they cannot recognize each other.
One of the solutions to this problem can be solved by first turning on the player and then turning on the TV; or by first turning on the TV and then turning on the DVD player. If the connection still fails, the user can try another HDMI cable. If the cable replacement still does not solve the problem, then the user can consult the DVD player manufacturer, preferably on the DVD player manufacturer's webpage, to check if there is any firmware upgrade information, if any, users can usually download directly Go to CD or get it by email.
The projector suddenly shuts down. The home theater projector sometimes suddenly shuts down during work. There are usually two main reasons: First, the user may accidentally cut off the power of the projector during operation. At this time, the user can check first. It is not a human factor that causes the projector to shut down. If not, it must be a problem with the projector itself.
In most cases, this phenomenon is most likely caused by thermal protection. In some high-end home theater projectors, in order to extend their life, they often design a self-heat protection function. Once the projector has too much heat inside, the projector will be in the state of immediate automatic shutdown. In this state, the projector does not respond to any external input control, so this occurs; in the case of the situation, the user does not have to worry about sudden damage to the projection. To resume, the user can turn on the projector in the normal boot sequence after the projector is automatically turned off for about half an hour to let the projector work normally.
The effect of surround sound is not good. The effect of surround sound is not good. The first thing to do is to check the signal source, TV program signal and other video sources around the sound source, and then check the speaker connection. And be sure that its channel and polarity are connected correctly. The user then checks the source of the signal and the set-top box, such as a cable or satellite, connected to the home theater receiver. If you connect a DVD player (or other source device) to your home theater receiver using an RCA analog stereo cable, you can make surround sound settings for Dolby Pro Logic II, IIX, or DTS Neo:6.
In these formats, any two-channel audio source (including CD laser discs, cassette tapes, and traditional analog vinyl discs) can provide realistic surround sound effects to the user by processing the audio signal. What the user needs to know is that even if the sound source is a true surround sound system, the surround sound effect is not always perfect. In a conversation-oriented scene, most of the sound is usually only from the center speaker, and the center speaker is often accompanied by some environmental noise when the program source stops playing. The explosion in the action movie, the sound of the crowd, or the music of the entire film is more pronounced on the side and the speaker behind.
Nothing happens when the projector is powered on. Users who use projection to watch programs in private home theaters are not uncommon now, but because home theater projectors are expensive, many users have a lot of opportunities to access them. Knowledge acquisition and understanding are relatively limited, so there are often various problems in the use and operation process, and there is no such thing as the projector does not respond after the power is turned on. This phenomenon indicates that there may be a problem with the power supply unit of the projector, perhaps the power inside the projector, or the external power supply.
To this end, the user can first check whether the external power supply specification of the projector is the same as the standard required by the projector. It should be known that the external power socket is not grounded or the power cable used by the projector is not equipped with the projector, which may cause The projector's power input is not normal. Once the external power supply is confirmed, the user can conclude that the internal power supply circuit of the projector is damaged. At this time, he has to try to repair or replace the new internal power supply of the projector.
The player does not play properly. There are several reasons for this failure. One reason is that some players, especially those introduced before 2000, have inherent characteristics that make it impossible to play a recordable DVD. If the user is having trouble playing a homemade DVD disc, please check if the format of the homemade DVD disc is DVD-R. If it is not, it will not play. If you play DVD-R format disc, you will also have trouble. This may be a brand issue for blank DVD-R discs.
Although it is not guaranteed that all players can play special homemade DVDs, most of them should be able to play DVD-R discs. Another reason why the DVD cannot be played at all is that the disc and the player's area code do not match, or the wrong video system is selected for production. As for the reason for the jump and freeze during playback, it is mainly the quality problem of the DVD disc. Most of the discs will have some damage, oil stains or fingerprints on the disc after being played for countless times. These defects will cause the DVD player to be on the DVD disc. The tracking error on the top. There is another reason why it cannot be played normally. Maybe the lens of the player is dusty and the user can try to clean it. Of course, the same method can be used to clean the problematic DVD and disc.
In the private home theater, there will be various failure problems. Today we have listed some problems and solutions. I hope to help you. Of course, some faults may not be solved by yourself. Then, look for professionals. Processed.
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