Why is digital TV not showing?

Why is digital TV not showing? This question interests many users who are already accustomed to high-quality image and sound. Thanks to the T2 tuner, even analog models have clarity and contrast, color depth. Consider what to do if the channels are gone - all or partially.

Channel search

In some cases, you can do without the help of a wizard and set up the TV yourself. This can be done in two ways - manually and automatically.

Manual digital TV tuning

Before performing this task, you need to define some data:

• Channel speed;
• broadcast frequency;
• TV resource modulation.

Then, using the remote control, we perform the settings:

1. Let's go to the "Menu".
2. Select manual setting.
3. In the field, enter the data from the provider and save them.
4. We start the search.

The procedure is repeated several times.

Automatic setting

To do this, use the remote control. The operation is performed as follows:

1. We go to the "Menu" section.
2. We find the "Settings" section.
3. Select "Auto Adjust".
4. Click "Search" and wait for it to finish.

As a result, digital channels with excellent picture quality should be detected.If not all channels are displayed, you must use the manual search.

Why is there no digital TV and how to fix it?

Often, when trying to set up a modern TV, which has a lot of built-in functions, users may experience problems. Most often, “cubes” appear on the screen due to:

• Incorrectly selected type of antenna;
• Incorrectly installed antenna.

If it was not possible to cope with the problems using the instructions, we try to perform the following steps:

1. To set the maximum number of channels, enter the symbol “_” in the field where the country is indicated.
2. Add frequencies manually.
3. Update software.
4. Reset the settings to factory settings and restart the search.
5. Perform a firmware update.
6. To eliminate problems in the antenna, you should connect the receiver to check on another TV.

When all the actions performed did not lead to the appearance of a signal, you should check the cable at the connection points.

To play digital channels, the antenna must be installed correctly. In addition, it must have special parameters in order to receive signals from stations that broadcast digital TV channels.

Important! If you are using an older TV, you will need to connect a receiver to it. In the new technology, the decoder is already built in.

How to choose an antenna?

Choosing the right antenna is not so easy, because they are represented by a variety of types and configurations. The main difference between all types of antennas is in the place of their installation and the type of signal amplification.

indoor antennas

They can be installed on any flat indoor surface. But most often they can be used within the city, close to the television tower.Signal strength may be reduced due to walls and external obstructions.

Outdoor antennas

They can be installed both in a city apartment and in a country house. It is installed quite simply, and the signal quality is much higher.

Types of antennas

It is also important to choose the right kind of antenna. They can be:

• Passive.Designed to receive and amplify the signal. There are no components for additional reinforcement in the design. A positive quality is the absence of noise in the signal.
• Active.In order to receive a digital signal of normal quality, they use not only the design of the antenna, but also the amplifier. It is built into the antenna or taken out. It is powered by a regular socket.
• directional active. The design is similar to conventional active antennas. The main difference is the overall dimensions and additional elements.

Important! When choosing an antenna, be sure to take into account the distance between the receiver and the signal source.

How to amplify the signal?

Modern equipment has advanced capabilities, but sometimes the signal itself is of poor quality. There are several effective ways to help fix this problem.

Often, in order to improve the image quality, a special device is used - an amplifier.

In some cases, you can use more affordable methods that do not require additional costs:

• Change the location of the antenna.It should be directed towards the tower that transmits the television signal.
• Check cable. It should not be damaged or twisted.

Choosing an antenna amplifier

For the correct choice of the antenna amplifier, it is necessary to select some parameters:

• Distances to the signal source;
• frequency range;
• The signal level at the output of the device - the optimal indicator will be 100 dB per microvolt;
• Gain of the device - the indicator must be at least 40 dB;
• Noise figure - this parameter should not be more than 3 dB;
• The type of device that requires TV signal amplification;
• Consumption current;
• Locations.

Important! To watch digital television, you should choose a device whose supply voltage is 5V. When choosing a digital set-top box with the same parameter, you do not have to purchase an additional power supply for the antenna amplifier.

It must be understood that the signal may be absent due to work on the repeater or equipment failure. Usually such information can be found on the websites of providers.

For a visual aid on setting up digital TV using the remote control in different ways, see the proposed video.