Reasons for poor reception or lack of signal reception on DVB-T2 set-top boxes. Rostelecom TV set-top box does not work, troubleshooting possible problems

Since the late 90s of the last century, audio-video technology has evolved greatly. From VCRs and DVD players, CD and MP3 tape recorders, to omnivorous media players that allowed you to read media files from USB flash drives. Such devices at one time cost 3-4 thousand.

Now every DVB-T2 receiver can do this. The receivers are quite cheap - from 900 rubles, and in addition to reading media files from a flash drive, they allow you to watch television for free from digital quality, albeit only 20 channels. And everything would be fine if the Chinese, in pursuit of cheap devices, did not put low-quality parts there. I have had cases where, in a receiver with a built-in power supply, after 2 years of operation, a small electrolytic capacitor had .

Small electrolytic capacitor

And accordingly, the receiver did not turn on, after measuring the equivalent series resistance with an ESR meter, and replacing the three-ruble capacitor, everything returned to normal and the receiver turned on. But this, as they say, was just luck. Much more often, DC-DC converters burn out in receivers. Sometimes, fortunately for the user who decides to do-it-yourself repair consoles, instead of them they install stabilizers with 3 legs, replacement is not difficult, but sometimes boards have unreliable five-legged converters, we will analyze this case. There are 3 of them there - small microcircuits in the SOT-23-5 package.

Chip Converter - drawing

They produce, respectively, 3.3 volts, necessary to power the RAM chip, 1.8 volts and 1.2 volts, necessary to power the processor.

Converter chip dimensions

It is easy to determine where the output of the microcircuit is, even without having a datasheet for this microcircuit; the output of the converter can be connected by a track to the inductor necessary for the operation of the converter. Get acquainted with one of standard schemes converter can be seen in the figure below:

What if your set-top box refused to turn on, you opened it and, after ringing, found two or more terminals in a short circuit or low resistance? Such converters, due to the fact that their wiring is sometimes individual and incompatible with other types of converters, it is necessary to replace them strictly with exactly the same ones, or, in extreme cases, with complete analogues taken from the datasheets.

Converter chip pinout

The connection diagram, component ratings, output current, and, of course, the output voltage must completely match. I received one of these set-top boxes for repairs with the 3.3 volt converter power input punched to ground. A quick search in radio stores in our city showed that we have neither such a microcircuit nor complete analogues anywhere.

The fact is that for design on Arduino and microcontrollers, special small-sized boards of converters and stabilizers are produced in China, immediately with the necessary kit soldered on the board for their operation. These are AMS1117 stabilizer chips familiar to many electronics engineers.

AMS1117 stabilizer chips

These microcircuits are produced as adjustable ones, which we need in this case unnecessarily, and with a fixed output voltage, we are interested in voltages of 1.2, 1.8, 3.3 volts. For all these voltages there are ready-made converter boards based on these stabilizers. How can you distinguish converter boards if, for example, you bought them earlier and forgot what voltage they were for?

On the housing of the microcircuits, in addition to the model name, the stabilizers have fixed voltage, sometimes the voltage that will be at the output of the converter is written, that is, the same 1.2, 1.8, 3.3 V we need. How to place these converters in the receiver case? They won’t take up much space, I wouldn’t think twice, I soldered the MGTF to three of the contacts on the converter board, there are 4 in total: input plus power, output plus power, and two contacts, a common ground for input and output.

I think it’s clear why we use three out of four contacts. How can we check ourselves whether we have found the correct pinout of the microcircuit, if the Chinese datasheet found, for example, raises doubts? Call the output indicated by the datasheet Vin, often if the console comes with external unit power supply, it is directly connected to the power socket. Also, between the ground and the power input, an electrolytic capacitor is often installed on the board, 220 uF x10 or 16 volts.

Capacitor 220 x 25 volts

The plus of the capacitor is connected to the power input of the converter microcircuit. What if you don’t know what output voltage this converter was for, that is, what voltage do you need to buy a converter for? You can try, after dismantling the burnt microcircuit and cleaning the contacts on the board from solder, apply power to the receiver and measure the supply voltage on the two remaining converters. And determine the voltage at the output of the remaining microcircuit by elimination. Solder this burnt-out converter using a soldering gun, or by applying a drop of solder, Rose or Wood alloy to all contacts, and warming them up quickly alternately with a 25-watt soldering iron.

If you are sure that the converter has burned out and are not afraid of burning it high temperature tips, when dismantling, you can apply a little ordinary POS-61 solder to all contacts and alternately heat the 40-watt leads with a soldering iron, trying to move the microcircuit. If, after desoldering, it turns out that the short circuit was “underfoot” on the board, and not in the microcircuit, to finally make sure of this, you need to clean the contacts of the old soldered converter from solder using a dismantling braid, applying alcohol-rosin flux to the contacts with a brush (SKF).

Alcohol rosin flux SKF

Then we simply place the braid on top of the contacts and heat the leads on top of the braid with a soldering iron. Our solder will transfer to the clean braid. For better absorption, the tip of the braid can even be dipped in alcohol-rosin flux. As the solder is absorbed, the tip of the braid should be cut off and the procedure repeated from the beginning. The same should be done with the contacts on the board remaining after the soldered converter.

Dismantling braid

There, as usual, we will be left with “snot” from the solder applied during dismantling - they must be removed. Then you can solder the MGTF wire connected to the contacts of the converter, finding from the datasheet for this microcircuit where we have the power input, where the output is, and where the ground is. It will be possible to check, as I wrote above, the contact connected to the ground by the power supply minus, we can call by touching either the polygon on the board, or if you are a beginner and are not sure of the correctness of the connection - metal case USB connector.

Ethyl alcohol photo

After everything has been soldered, do not rush to connect the set-top box to the network, wash off traces of flux with alcohol, especially if you never know, you used a low-active flux, which in this case is a prerequisite for long-term operation of the device. Then look under a strong magnifying glass or take a photo with a phone with a good camera and make sure that you haven’t put “sniff” on the adjacent contacts, because they are located quite close to each other.

Multimeter in audio mode

To be completely sure that there is no short circuit, or if you couldn’t find a strong magnifying glass, test all adjacent contacts relative to each other for short circuits with a multimeter in audio testing mode. All these procedures involving replacing the converter make sense only in one case - if, after checking the datasheet, you did not find short circuit power input pins to the power output, since in this case your processor or RAM chip has already burned out due to the supply of too high supply voltage.

Which, of course, is sad, since then it will be impossible to repair it either at home or even in a good workshop, due to the labor-intensive nature of the repair and its high cost- higher than the cost of the new console will not make sense.

Conclusion about the work done

Any more or less trained radio amateur can easily handle this repair, and due to the low cost of the board for replacing the converter, it can be recommended as a tool, albeit a “collective farm” one, but very budget decision, in case the thrifty radio amateur does not have extra funds to purchase a new set-top box. Or you just have a desire to prove to yourself that repairs are complicated digital technology Sometimes it’s quite possible to do it on your own. Happy repairs everyone! AKV.

If the search results in only 10 digital channels instead of the desired 20, then first of all you should make sure that viewing all channels in your location is in principle possible. This can be done by using, interviewing neighbors, or calling specialized organizations involved in installing antenna equipment. You should not call Eldorado or Auchan, since in most cases they do not have such information. Call a company that specializes in installing antennas. As a rule, these are companies that install, among other things, satellite dishes and you can find their coordinates, for example, on the website tricolor.tv in the “Where to buy” section. If reception of all 20 channels is possible in your area, check the antenna and cable.

Channels freeze or signal disappears

For stable operation digital television It is important that the received signal is of sufficient strength. More precisely, a good signal-to-noise ratio is important. When this ratio drops below a certain limit, viewing problems begin. The easiest way to see the signal level is to double-press the INFO button on the problem channel on the remote control of the DVB-T2 set-top box. A “quality” scale should appear on the screen and its value should be as high as 50%. Often, next to the signal scale, a “level” or “strength” scale is displayed - there is no need to focus on it. If the signal level is low, then the advice is still the same: check the cables and antenna and, if necessary, replace it.

Probably, every person has encountered the failure of one or another equipment, and recently the situation is relevant when digital television does not work. A person turns on the TV to watch a long-awaited continuation of a series or a favorite show, but only gets a blank screen. But digital television does not work every time for some reason that no one understands. Either there is no broadcast, or the signal does not pass through, or prevention is carried out on separate channels. Digital television also does not work if the antenna or even the TV itself breaks down, or maybe the cable comes loose somewhere. There are many, many reasons why there is no television broadcasting. This article will help you understand some of them.

Main reasons

If digital television does not work due to lack of signal, it will be immediately clear, because not a single channel will respond. This means something happened to the antenna. Prevention cannot take place on all channels at once, most often on just one or, in extreme cases, on several. The rest will work, and why digital television does not work is not a question for such a situation. If a cable has come loose somewhere, then the question is legitimate, because silence and a dark screen will be everywhere.

The first thing you can check is that everyone knows, even people far from technology. You need to disconnect and reconnect the cable. If it doesn’t help, then contact specialists and ask them why digital television doesn’t work today. If the user suspects the reason is that the TV is broken, there is no point in independent actions No. It will only help service center or private master, who definitely knows how to repair TVs.

Much, much if

Cable television users have the opportunity to immediately contact the company that provides broadcast services as soon as they discover a lack of sound and picture. There are usually experts there, they will always help in all cases. If there is no cable television, then first you need to get to know your neighbors and ask if everything is okay with them.

If their digital television has not stopped working, then all problems should be looked for at a specific user. If a regular indoor antenna is used, problems usually arise frequently, so many people now purchase special amplifiers, then there is no answer to why digital television does not work. An antenna amplifier is a very effective aid, and it is not difficult to purchase - it is not too expensive and is sold everywhere, in every household appliance store.

Common problems

Satellite television antennas are very powerful, but even they sometimes refuse to transmit a signal, and a frustrated user spends a lot of time with the phone in his hands, asking the broadcasting company why digital television is not working today. This problem is considered common. The satellite is moving, and it was to it that the antenna was tuned, and it was from it that it caught the signal.

It exists, but is not available. The problem can be solved quite simply, but not every user can independently reconfigure the antenna to another satellite, so it is better to immediately contact specialists. Moreover, it is not a fact that the satellite has moved. The antenna may also change its position due to the wind or because an object, such as a tree branch, falls on it.

About the benefits and harms of curiosity

There are many reasons, and users have even more solutions, unless, of course, they cannot correctly determine the reason why digital television is not working well. If the cause is unclear or the user made a mistake in the diagnosis, additional problems may arise when acting independently. Therefore, it is better to resort to the help of real professionals. They will determine why 20 digital television channels do not work, or, for example, only ten out of twenty work.

Not too knowledgeable modern technology the user is unlikely to be able to do this. But there are (and quite large quantities) people are inquisitive, and it is their choice: to establish a signal or to break something else. You can only eliminate some minor defects on your own, and those that are visible, for example, placing the cable correctly in the socket or choosing an amplifier for the antenna in a store. The rest needs to be left to specialists.

Far and near

In the city it is much easier to get answers to the following questions: why digital television channels do not work, why there is poor sound and image reception, why not all channels work well, and many more questions regarding broadcasting and reception. But very often there are situations when it is difficult to solve such problems even in a metropolis. It is impossible to even list all the cases in which even a master cannot immediately cope if digital television does not work.

Kaluga, for example, is a very modern city, but for some reason there are a lot of reviews on the Internet about signal problems from there. City residents generally have much less problems calling technical support, but how much more difficult it is to resolve issues of this nature far from civilization! In the outback, time does not flow so quickly; modern technologies arrive there very late or never arrive at all. Therefore, fans of digital television need to find out what options exist for them today.

Three options

Firstly, this is cable television, when the signal will be distributed directly through tv cable, and it connects to a separate TV. This is a very high-quality transmission, but it is not available in every outback, mainly in cities. And the subscription fee is quite high.

Secondly, this is satellite television, when the signal comes from low-Earth orbit and is received by an individual antenna (“dish”). This can be done everywhere, and the sound and picture will be of high quality. The subscription fee is quite high, and the equipment is also expensive. And from time to time, the user still asks the question: why did digital television stop working?

Thirdly, terrestrial, when the signal is distributed by ground-based repeater stations and is received by an individual antenna. There are few costs here, but the signal level is much lower, the quality of reception depends on everything in the world - here is the weather, and the distance from the relay tower, and the height of the antenna mast, and much, much more. And every user will be in a bad mood from time to time due to the fact that terrestrial digital television does not work.

Of course, nowadays the Internet helps everyone everywhere, where you can always watch whatever you want. However, this article is not about these cases.

Theory

All these methods are quite good. But when choosing one of them, it is necessary to present at least general outline, What is the difference. For example, terrestrial television and digital television are completely different. The latter is that digital coding is used to transmit image and sound - both the audio signal and the video signal. And digital channels are used for transmission. Such encoding ensures minimal losses during signal delivery, since there is no danger of any interference with the encoded information. And if digital television channels do not work, then they do not work completely, at all. And if they work, then only in excellent quality. There is no borderline state or interference here. The only exception is that the connection quality is poor. Then the TV seems to slow down, turn off and turn on again. And this can only be corrected in one way - you need another antenna or the existing one needs to be raised higher and turned towards the TV tower.

It should also be noted that many users do not know that digital television is always limited in the number of available channels. Depending on the region there may be ten, twenty, the number varies. The principle does not work here: raise the antenna higher and catch absolutely everything. No, only what is available can be configured. For have a nice watching First of all, you need to purchase TV antenna, TV or television with support for signal compression standards and a tuner (you need to find out which one is on this moment not yet outdated). To many most modern TVs They don't need a set-top box, they only need an antenna. But not everyone has these, and therefore users often look for the reason why the digital television set-top box does not work, although the problem may be in the TV itself.

Practice

Let's say you have chosen terrestrial digital television for use. You can use the most ordinary antenna, which picks up two or three channels well in fairly good quality, a couple more in poor quality, but even those in very good weather. This antenna requires an attachment. For example, DVB-T2. Any one is possible, they are technically almost identical. Most often, set-top boxes have two outputs - SCART or “tulip” and an HDMI output, as well as a USB connector for viewing the contents of electronic media. The boxes for all consoles are different, but they seem to be made at the same factory in China. Therefore, when purchasing, you need to carefully inspect the control panel, as the most frequently used item, to see if everything is in order with it. Otherwise, there will be problems in switching channels, adjusting the volume, and the like. If all is well, you can connect the antenna to the set-top box, and the set-top box using a “tulip” (usually sold in one set with the set-top box) needs to be connected directly to the TV.

Here you need to know that the RCA connectors for stereo sound and video signals are the same “tulip”. Yellow is for video, white is for left stereo or mono, and red is for right stereo. If the TV picture tube is obsolete, the “tulip” will help out. If the TV is plasma or LCD, it has an HDMI output, and you need an appropriate cable, another will not work. You need to purchase it separately. Otherwise, the user will not like the image too much. The TV needs to be switched to AV mode, then the set-top box interface will appear. Setting up the console is not too complicated. Even if you just do everything by default, the quality will completely satisfy even connoisseurs. The main thing here is to configure the channels themselves. The menu has a channel search. You can also select auto search. In a few minutes everything will be ready. For almost anyone settlement it would be enough.

From electronic media

As already mentioned, it is needed in order to play back what was recorded on a flash drive. To do this, you need to insert the USB device into the set-top box, go to the menu, select "USB" "Multimedia" accordingly, then select required format- videos, pictures or music. The contents of the flash drive will open on the screen. Now you need to choose the desired folder and open the file. Everything is even simpler than doing this with a laptop or computer. However, many people still cannot figure out these operations on their own. Especially for older people who can’t keep up with fast-moving traffic. technical progress, we need help. Young people cope best with this. And even small children are much more adaptable.

But that is not all. A user who has such an antenna attachment for digital television should know that it is possible to perform the reverse operation. For example, record your favorite program directly from the TV onto a flash drive. And the steps for this purpose are just as simple. Just press the "Rec" button on the console's control panel, and the recording will obediently go to the USB device. In a word, digital television today, even for a remote locality, is not a myth or a dream, but a completely feasible thing. And if it is digital terrestrial, then a resident of the outback or temporarily settling in a dacha or village does not necessarily have to spend about ten thousand rubles on installing satellite television, and then pay a considerable subscription fee. You can still achieve comfort today with small means.

Trust the provider

Almost everyone enters into an agreement with a provider in order to receive digital television services. Long-running and fairly powerful companies supply a set of equipment to the user, such as, for example, Rostelecom. However, almost all providers do not satisfy the client on the day of contact. You have to wait a day or two, and if this is the outback, then a week, not even one. In order not to waste time, and digital television to work immediately, you can do the initial setup yourself. This knowledge and skill can be needed by literally everyone, even if you have to move the TV to another room or exchange it for a new one you just bought. Therefore, everyone should understand connection diagrams and configuration technologies.

The same Rostelecom offers this service in two versions - together with the Internet (“Interactive 2.0”) and separate digital television (“Interactive TV”). The latter can only work on a router that belongs to the company; others will not work. And Rostelecom’s routers are disgusting, that’s what all the reviews say. Therefore, it is better to choose 2.0, and if there is no other provider nearby, you will have to call technical support almost every day with the question: why does digital television not work during the day? You won’t be able to connect version 2.0 yourself; you’ll still have to wait for technicians. Rostelecom's settings do not match with other people's equipment. The user is lucky if another provider is nearby and can connect him to their network.

Situations

1. The set-top box leaves the normal mode. This can happen if it is turned off for a long time. You just need to plug it into the network and not be afraid of the inscription that says that the channel is DRE encrypted. If you wait a couple of hours, the operation of the receiver will be fully restored and all encrypted channels will open.

2. It may happen that the set-top box (receiver) is not registered. To eliminate this situation, you need to look at the identification number on the back panel and enter it on the provider’s website.

3. Sometimes the antenna settings get lost. Such cases are described above. Here you will need the help of a specialist who will reactivate them.

4. If a paid channel sign suddenly appears on the screen, you just need to pay for a subscription to the provider’s services; apparently, the user forgot to do this on time.

5. Sometimes there are difficulties with software compatibility. This will require some dexterity. If the receiver is GS-HD, you need to restore the channel list in the menu (there is such a key there). And if that doesn’t work, you need to press two buttons on the remote control and on the receiver panel at the same time (this is the most important thing) - CHANNEL and TV/RADIO. Exactly at the same time - with four fingers. And then press STANDBY on the remote control. And everything has to fit together in the software.

6. If “No Signal” appears on the screen, you should look for a solution to the problem with the antenna. This has been discussed a lot above.

7. Check the cable. If it doesn't help, call a specialist.

Any normal person, to put it mildly, is not satisfied if the services he pays for work poorly. However, technical failures in equipment operation are inevitable. What to do if the Rostelecom set-top box does not work, typical faults, which may arise, and their ways self-elimination we will look at it in the article.

Problems with Rostelecom television

So, if there are problems with Rostelecom interactive television, it is necessary, first of all, to localize the problem. The lack of a TV signal can be caused by several reasons:

• problems on the provider side;
• problems with the router;
• cable damage;
• The attachment is broken.

Today we focus on the last item on the list. It is important to understand that the lion's share of problems with the Rostelecom TV set-top box can be easily and quickly resolved independently, without contacting the service technical support companies. It’s worth starting, as in the famous joke, by checking whether the electricity in your house is turned off.

If the Rostelecom set-top box stops working unexpectedly, most likely the problems are related to technical work for network maintenance. Contact technical support for information about the time frame for restoring network functionality.

When will rebooting the Rostelecom set-top box come to the rescue?

Many faults can be eliminated using the classic method - a regular restart. When rebooting, the Rostelecom set-top box will check for the presence updated version software and, if available, will download and update the device firmware. Many users do not disconnect the set-top box from the network for months, so software updates do not occur. To be on the safe side, it doesn’t hurt to reboot the router, as well as unplug the cable and reconnect it.

And yet, after disconnecting the router from the network, they first turn on the router, which normally takes about three minutes to load. Then turn on the console. The lights on it light up, but the console does not load instantly. You will have to wait 4-5 minutes.

This method usually helps if the Rostelecom set-top box freezes once. But the opposite option is also possible: after the upgrade, the Rostelecom set-top box begins to slow down, precisely because of the incorrectly installed update. In this case, try resetting the set-top box to factory settings. This can be done through the main menu of the device.

Some are craftsmen on their own. The prospect is tempting, as it allows you to turn an average device, tailored under Rostelecom, into a full-fledged media center. But the risks are also high - sometimes after the manipulations the device simply does not turn on. On the other hand, it is flashing that allows you to cope with most of the “glitches” of the device that cannot be eliminated in other ways. For those who are comfortable with technology, we recommend that you do not do this yourself, but contact technical support specialists.

Another common and easily solvable problem is incorrect connection of the LAN cable. If the connectors are mixed up during connection, the set-top box will not work.

Trivial problems with the Rostelecom prefix

Let's consider the most frequent problems in the operation of the set-top box that the user encounters and the actions that he can take to restore functionality.

If the error message “Rostelecom set-top box cannot obtain an IP address” appears on your TV screen, there are most likely problems with accessing the Internet. The reason may be either on the provider's side - an accident or technical failure, or on the end-user's side - physical damage to the cable or incorrect operation of the router. Disconnect the router from the network for a few minutes and turn it on again. Did not help? Call .

If the Rostelecom TV set-top box does not respond to the remote control, simply try replacing the batteries. If it doesn’t help, configure the remote control yourself or take it to a service center.

To fully control the operation of the TV using the remote control from the set-top box, special settings are required. It's better if he does it personally Technical Specialist Rostelecom at the moment the subscriber connects to the network.

Typical situation: only federal channels are shown, and the rest included in the Rostelecom package are not available. It is most likely that telecommunications services were not paid on time. Sometimes access is blocked by mistake. If you are sure that the payment went through, you may have accidentally blocked access to the channels. Call by phone hotline operator to clarify the situation.

There are situations when the playback of video and audio signals slows down. The image disintegrates and the sound stutters. This is usually due to network congestion. Try disconnecting other home devices from the Internet, the problem should be resolved.

The main “devourers” of the channel are downloads from file hosting services. Understanding this, you can independently regulate the workload level.

If the picture is “normal”, but the sound on the Rostelecom set-top box disappears, there is apparently damage to the RCA cable. Try moving the connector. If the sound can be restored, the problem is localized. Replace the cable with a new one.

If the performed manipulations do not help, feel free to take the set-top box to the service center. Experts will determine whether the failures are caused by problems in the hardware or software. And most likely, your device will be replaced with a new one.

Of course, problems with Interactive TV may arise. But these inconveniences are more than compensated by the range of opportunities that it provides. new format. Don’t be afraid to contact technical support once again - this is the only 100% current method problem solution.

Everyone who lives in the age high technology, are confident that these technologies are designed to make life easier. This is true, although there are situations that can contribute to nervous tension rather than relaxation. For example, when some of your favorite TV channels disappear. Naturally, this is far from the most best experience, especially when you want to watch TV, and it throws up similar, not very pleasant surprises.

If you also encounter a similar problem, then there is no need to rush to a television repairman, especially since this may take some time. If you wish, you can try to restore digital channels on the TV yourself. Of course, a 100% return of their broadcast cannot be guaranteed, but, as a rule, independent manipulations help.

Reasons for missing channels

As a rule, the TV shows two dozen standard digital channels. But sometimes even they disappear, if not completely, then partially. Considering that they are free, problems with broadcasting can be associated with many reasons, but the main ones can still be identified:

Problems with the program;

Problems with the signal receiving equipment.

Both the first and second situations can be solved, but they require completely different manipulations. If the problem is with the equipment, then the attempts of an ordinary user do not always help, and can even cause harm. If there is a problem with the TV channel itself, then this happens with one, maximum, two programs, but not with half of the broadcast channels at once.

Let's figure out what the number represents before doing any manipulations related to recovery processes. So, the advantages of digital television channels are improved signal reception, cooler sound, picture and other characteristics compared to other free systems. But only 20 channels are free, which are periodically switched off and changed, so in a situation where some TV channels have disappeared, there is nothing surprising.

A paid channel symbol appeared on the screen. This is a sign that the subscription to services is ending. If you didn’t pay for your digital subscription on time, the answer to the question of why the channels on your digital set-top box disappeared is obvious. You need to top up your account and then they will start working again, of course, if this message does not pop up on. In this case, it is better to contact your provider for clarification;

There may also be difficulties with the software, or more precisely, its compatibility. If this is a GS-HD receiver, then you need to go to the menu and press the “Restore channel list” button. If the new one doesn't fit software, then on the same receiver you need to: find the TV/RADIO and CHANNEL buttons on the remote control, in addition, simultaneously press the same buttons on the receiver panel. But it is very important to do this at the same time. Then press the STANDBY button on the remote control;

The inscription “No signal”. This is already a standard sign of problems with the antenna. If the antenna does not work as it should, it is not surprising that dozens of channels began to disappear. If the device is new, then it may not have configured programs, so this fact should be clarified. But if the programs worked before, but disappeared in an instant, you should still go outside and see if the antenna has moved due to strong wind or something similar;

Sometimes the connection between the antenna and the cable, or the cable and the set-top box, is disrupted. If such suspicions arise, you need to make sure that the cable is connected to the LNB IN socket.

When none of the above list helps, there is only one way out - call for help. The master will definitely figure out what’s wrong and return your favorite programs.

Why are only 10 out of 20 digital channels shown?

Over the past two or three years, digital television users have often complained that after updating channels, half of the programs that were shown before disappear. Since then, people have a logical question: why did 10 channels disappear if they used to work and were free?

Many forums are trying to find out the answer to this question, which is why different versions are put forward. For some, the channels of the first multiplex do not work, for others, the second. This suggests that the reasons for these troubles lie in various difficulties in signal reception associated with technical work or the peculiarities of the functioning of digital television.

Perhaps after some time the channels will restore their broadcasting, so you shouldn’t worry in advance about where ten popular channels have disappeared at once. RTRS clarifies that for now the work is being carried out in test mode, so for some regions such difficulties will become the norm. Sometimes searching for channels again or reflashing the set-top box helps, but if this is not your case, you can use analog or satellite television, where the signal works without such significant interruptions.