Modern televisions, both of the middle class, and of higher, and sometimes even budget models, are gradually acquiring various fashionable little things. The buyer sometimes with surprise discovers several different connectors for different interfaces. And almost always there is an HDMI arc connector, sometimes not just one. So users are wondering what is connected to this connector and most importantly how.
HDMI what is it on the TV?
Modern models of TVs, both plasma and LCD, are equipped with a large number of connectors. At one time, several different devices can be connected to them. This interface saves space, as the same cable transmits both video and audio in two directions. As a result, only one cable is required instead of several.
The cable provides high signal quality. The image comes with a resolution of the order of 1080 pixels, and the sound provides eight channels with a frequency of 182 kilohertz. This is enough to meet the high requirements of the standard media content.
This protocol was developed in 2002 and is widely used in household appliances.
IMPORTANT! When buying a TV, be sure to check if it has an HDMI jack. What is it for? With its help, an audio-video signal of high quality is transmitted. All data on this interface is copy protected.
HDMI is characterized by the following:
- It has a high transmittance (about 18 Gb / s);
- The cable is very long (according to the standard, the length is about 10 meters, there are up to 35 meters);
- Supports CEC and AV.link standards;
- It is compatible with DVI. There are various adapters that allow you to work with equipment that does not have HDMI.
The cable can easily be equipped with protection against various interference. Anyone who understands electronics and knows how to hold a soldering iron in their hands can put rings on the cable, at the very beginning and at the end. These rings will cut off interference.
It is possible to increase the range of the transmitted signal, for this it will be necessary to use special video senders, and amplifiers. HDMI is an alternative to the analogous connection types - SCART (Euro-AV) and RCA (regular AV).
What does it look like?
Externally, the connector is similar to USB with beveled corners.
Part of the nest made of metal can be painted in metallic or gold color. On performance, this is not displayed, purely a whim of manufacturers.
The cable is easy to use. Special knowledge in the field of high technology is not required for this. The only thing you need:
- The required connector on the TV or monitor - so that it accepts the image and sound;
- Transmitting device;
- And directly the cable itself.
One end of the cable is inserted into the socket of the translator, and the other into the receiving device. We enter the required settings and get to work. Nothing complicated.
There are several options, each of which has 19 contacts:
- Normal HDMI (Type A);
- Type Mini (Type B);
- Type Micro (Type C).
The cable is arranged somewhat unusual compared to others. Outside, it is protected from mechanical stress by a special shell. Next is a braid for shielding, it is made of copper, which is usually used when soldering, there is an aluminum screen and a polypropylene shell. There are communication cables inside (they look like a twisted pair cable), as well as a separate wiring for supplying power and other signals.
Using this cable, you can turn your TV into a multimedia station. A cable with an HDMI interface allows you to control one device with all the devices connected to the TV, and in the near future it will be possible to control from a computer.
REFERENCE! If you had a desire to make a multimedia station with a multitude of functions from a TV, then for this you need to buy a special “smart” smart set-top box or a board with the same characteristics.
With their help, you can watch paid channels in digital quality mode.
Where is this connector located?
This connector is usually located on the back of the TV, however, on some models it may be on the side.
In no case do not be led by the seller to assure that the cables with a golden color of the connector far exceed their characteristics with similar cables with the metal color of the connectors. Remember, this is just the color of the metal. The whole foundation that is responsible for the quality of the cable is located inside it.
NOTE! Be prepared for the fact that not always when you connect a device with an HDMI connector to the TV, they will immediately see each other. As a rule, you should make the necessary settings.
Most often, HDMI is used to connect a TV to a computer. Modern TVs have a much larger diagonal size than computers, which allows them to be used to create a "home theater". Making this connection, do not forget to turn off both devices first, as otherwise there is a possibility of burning ports.
Despite the existence of various adapters, try not to use them, as this significantly reduces the signal quality.
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