Connecting digital television is not difficult, but it happens that there are no channels. If the TV does not search or does not find digital channels, you need to identify the cause and eliminate it. You can solve the problem yourself, without the help of a specialist, but sometimes they can only fix the problem in the service.
Why the TV does not catch digital channels and what to do
To understand why
digital television channels do not show , you need to establish where the failure occurred. Having discovered the problem, it is possible to solve it yourself without the help of a specialist.
Hardware problems
Problems with equipment for connecting digital TV. In order to eliminate the error, it is necessary to identify the malfunction of one or another equipment. In this case, we recommend contacting specialists, and not trying to solve the problem yourself.
Digital set-top box not finding channels
A malfunction in the
receiving device can be calculated by the following signs:
- the appearance of the inscription “no signal”;
- spontaneous shutdown or reboot;
- the LED on the receiver is dim.
https://youtu.be/4fRdee5g6xs In these cases, there may be poor-quality receiver firmware. You can fix this problem by flashing the hardware. A software version is available on the official website of the manufacturer, it will be enough to download and update the device.
It is better to entrust the flashing to a specialist.
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Antenna
If there is a problem, check the
antenna first . For the transmission of the analog signal, MW antennas are used, for the digital signal – UHF. If there are TV towers near you, you need to mount an
amplifier , since without it you will not be able to catch a single channel.
Cable
Faulty cables can adversely affect the performance of your TV. You need:
- Check all connections and wire integrity.
- If the cable is oxidized, clean it.
- If damaged, replace.
Even a slight bend in the wire can affect the transmission quality of digital television.
You can solve the problem of signal loss and other problems with the TV signal
right now .
Watching this product
Does the TV support digital TV?
In order to make sure that the TV supports digital broadcasting, carefully study the technical documentation. The TV is suitable for tuning digital channels if the column “DVB-T2” is marked “yes”. The marking can be found on the factory box of the TV.
If there is an inscription “DVB – T” – you will have to buy a set-top box, since this format is outdated and does not support digital broadcasting.
The possibility of tuning is also determined by the presence of a special tuner. Mostly support for the ”
DVB-T2 ” standard is indicated by the letter “H”, but the symbol may vary depending on the model and manufacturer. DVB – T2 modules can be:
- built-in – a hardware component located inside the TV;
- external – an independent device that connects to the TV.
On TVs with a built-in tuner, you can immediately start watching digital TV after connecting the antenna cable. If the TV is old and not equipped with this component, then you will have to buy a special set-top box.
Other reasons
There may be several other reasons:
- TV breakdown . The message “no signal from the router” will be displayed on the TV screen. So the tuner is working, but it’s in the TV.
- Settings messed up . The settings get lost completely by accident. In this case, reset the tuner to factory settings. After that, you will have to re-search for TV channels and tune them.
- Unstable signal . The antenna may have fallen or changed direction for any reason. Return it to its original position and everything will work out.
- weather conditions . Channels may be interrupted or disappear. Negatively on digital television, can be affected by:
- rain;
- thunderstorm;
- freezing.
If one or more channels are missing
There are cases when, when searching, the TV does not find one or more digital TV channels. Common causes:
- technical problems – it is better to take the TV to the service;
- outdated drivers on the TV – update the software (the update can be found on the manufacturer’s website);
- preventive work;
- termination of the TV channel.
If there is no specific TV channel, then he turned off digital broadcasting or changed the operating frequency. Information about this can be found on the channel’s website.
When a diplexer is connected
If both digital and satellite antennas are connected to the set-top box through a diplexer, then you need to understand that they remain different devices. For the user, they function as one. But each device works differently.
A diplexer is a passive frequency decoupling device designed to simultaneously receive two signals, which multiplexes (combines) and demultiplexes (disconnects) them.
Features and differences:
- Signal reception. For the antenna, the quality of the signal and the weather are important. It is important for the satellite that there is no interference in the form of high-rise buildings between it and the dish.
- Broadcasting. If you temporarily turn off or change the frequency on one of the antennas, broadcasting will continue on the other.
If, when using a diplexer, TV is broadcasting only on one of the signals (DVB or DVB-T2), then the problem is only in one of them. If there is not a single channel on both signals, this means that repair work is underway.
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If nothing helped
If you have tried all the settings, and the TV still does not find channels, then there is a malfunction in the tuner or antenna. To check, you can connect another antenna or set-top box to make sure that the problem is not in the TV.
Faulty devices are referred for diagnostics to the service, where the cause of the problem is reported.
Features of automatic tuning and manual search
In some cases, automatic tuning may duplicate channels or not bring the desired result. In this case, you must use manual channel tuning.
Auto search does not find Samsung digital channels – we solve the problem manually
https://youtu.be/CkJUmsEG2SU In order to find digital channels on your Samsung TV, do the following tasks:
- Enter the menu and go to the “Channel” section, go to “Country”.
- If your TV asks for a pin code, enter 1234, 0000, or 1111.
- In the column “Digital channels” select “Other”.
- Go back to “Channel” and go to “Cable Search Options”.
- Enter certain parameters. Set the frequency, baud rate and modulation as in the picture.
- Go back and go to “Auto-tune”.
- Select “Cable” as the signal source and set the TV type to “Digital”.
- In search mode, select “Full” and start the setup using the “Search” button. If you are not sure about something and want to start over, click Reset.
- When the channel search is completed, save.
The manual channel search procedure can take from 15 to 20 minutes.
Manually adjust the reception of channels on LG TVs
If you live outside the city, then you first need to make sure that your locality is included in the broadcast area. To do this, go to the
RTRS website and find your region there (the numbers indicate the location of the repeaters). If you are too far away from them, we recommend using other broadcast standards (satellite, analogue or
iptv ). How to tune channels on LG TV:
- Take the TV remote control and press the “Home” button, switch to the tab called “ Settings “ .
- Select “Options”, set the country of residence. If we are talking about a model released after 2011, select the region “Russia”, if not, select one of the countries in Western Europe.
- If the TV was manufactured before 2011, set the Russian language in the appropriate tab to avoid problems during subsequent setup.
- Return to the “Settings” tab, select the “Manual search” command.
- Select “Quick Scan” by specifying the frequency, scan rate and modulation data as shown in the picture. Click the “Update” button.
- When the channels are found, save them.
On average, the search process takes 15-20 minutes (depending on the specific TV model and current location).
Sony Bravia – manual setting of a number if the TV does not automatically find channels
To start manual channel tuning, you need to set the exact date and time on this TV. This may affect the digital TV settings. Let’s go to the Sony Bravia TV settings:
- Go to the TV menu.
- Click on “Digital Configurations”.
- Select the line “Digital setting”.
- Select “Auto Scan for Digital Stations”.
- Select “Cable” as the TV connection type.
- Enter the channel search parameters according to the picture and click “Start”.
- Turn on the power if you have an amplified antenna.
- Wait for the TV to finish searching for channels.
After the search, the list of found channels will be saved by itself. The operation will then be repeated for the second multiplex.
Channel search takes from 15-20 minutes.
Toshiba
In order to start manually tuning channels on this TV model, you must first go to the official
RTRS portal to find out at what frequency the tower closest to you broadcasts channels. Let’s go to the Toshiba TV settings:
- Press the “Menu” button on the remote. Set the following parameters in the “Settings” section: in the “Country” column, select any country in Western Europe, “Input” select “Cable”.
- Go to the “Manual setup” section and click “OK”.
- Enter the frequency, modulation and channel transmission rate according to the picture, click “OK”.
- Wait until the end of the process and save the found channels.
The procedure can take from 20 minutes to half an hour.
Setting up reception of digital channels on Philips TVs
In order to start manually searching for channels, you must first indicate your location and select the desired language on the TV. Let’s go to the Philips TV settings:
- Go to the main menu and go to the “Configuration” section.
- Activate the “Channel settings” command.
- Click on “Reinstall Channels”.
- Select a TV broadcast method. To set up cable TV, you need to click on DVB-C.
- Go to “Settings”.
- Select manual mode.
- Enter “Symbol value 1” as in the picture.
- Go to “Frequency Scan” and select “Quick Scan”.
- Set the frequency difference according to the picture.
- Select “Manual” network frequency mode.
- Set the network frequency according to the picture.
- Click Finish.
- After that, go back and click “Start”.
- Wait for the process to complete and then confirm your actions by clicking “OK”.
On Philips TVs, the channels are tuned separately for each
multiplex .
Searching for channels manually takes about 20 minutes.
In order to fix problems and set up digital channels, it is not necessary to resort to the help of a specialist. This can be done by yourself at home, having studied in detail all the problems and eliminating them.
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Постоянно пропадают каналы на телевизоре Philips, с помощью ваших советов получилось самостоятельно настроить.
DC nu îmi da voie sa fac televizorul