One of the most common inconveniences when the TV It is finding yourself in front of a black screen accompanied by the message “Absent TV signal”, “No signal” or an written writing. It is an apparently alarming situation, but often the cause of the non -TV failure can be resolved without the intervention of a technician. In some cases, quick control of the cables or a restart of the devices is sufficient to restore the normal transmission of signals; In other cases, the problem could concern specific TV channels, which suggests a problem attributable to the television station: in the latter case it could be enough to wait for the problem to fall within a few hours. But let’s do order and we actually see How to solve the problem of the absent TV signal.
How to solve the problems of receiving TV antenna
How to solve the bad reception of the TV signal
Below we provide you with some indications on How to solve the bad reception of the TV signal independently.
Change channel
The first thing we suggest to do is change channel. If you notice that only a channel is affected by the problem (or only a group of specific channels that are part of the television station themselves), it may be that the failure to receive the signal is attributable to the infrastructure of the issuer itself. In this case, after making the necessary checks (and perhaps after asking the neighbors even if they are finding the same problem), you could report the thing to the issuer by exploiting the appropriate online modules responsible for this purpose. You can find them on the sites of the various broadcasters, such as Rai and Mediaset.
Restart TV and/or the decoder
If the problem is extended to multiple TV channels, try a Restart TV or decoder. After turning off the TV or decoder, detach it from the current for a few minutes, reconnect the power cable to the socket and then turn back. It may seem trivial as a solution, but in many cases turn off and rekindle a device solves some temporary malfunctions attributable to the system software itself.
Check the status of the cables and connections
If the problem persists, it is essential to adopt a more methodical approach. Start checking that all cables are firmly connected. The cable that connects the TV to the antenna socket or the decoder may have looked up or accidentally disconnected. If you notice that it is not correctly inserted (or you have doubts that it is), disconnect it and reconnect it. If the cable is damaged, replace it promptly. If you have doubts about the integrity of the coaxial cable, try to use another (at least temporarily) and see how it goes: if with the replacement cable the problem of the absent signal disappears, you have done bingo.
Also pay attention to the choice of the correct entrance: if the TV is set on an non -active source, it is normal that no signal is displayed. Use the remote control for Manually select the correct sourcelike HDMI 1, AV, or TV.
Check the operation of the antenna
Let’s go to the Antenna verification. Check that the antenna, be it internal or external, be positioned correctly, without obstacles or objects that could interfere with the reception. Meteorological events such as strong rains or snowfalls can temporarily lower the signal quality. In the presence of bad weather, wait for the conditions to improve before carrying out further checks. For external antennas, check that there are no debris or branches that hinder reception, and clean them (safe) if necessary.
A useful tool made available by many televisions is the menu of Signal informationoften accessible through the section Settings or Support of the TV. Here you can read the value of the Snr (Signal-to-noise ratio), that is, the relationship between the useful signal and the background noise. A value less than 25 It can indicate a too weak signal for a stable vision. In this case, you should better direct the antenna or evaluate (perhaps behind a qualified technician consultation) the purchase of a signal amplifier.
Another effective solution is the Risintronization of the channels, possibly complete. It is a process during which the TV performs a new frequencies available to update the channel list. This operation is useful not only to recover any lost signals, but also to adapt to changes in the distribution of channels by the various broadcasters. After scan, the order of the channels could change, but the signal problem is likely to be solved.
What to do if the reception problems persist
If despite all these operations the problem persists, it is possible that there is a fault in the cable wall socket, a break in the line between the condominium control unit and your home, or a problem of some kind to the system of your TV. In the case of centralized systems, the failure may be in the distribution control unit, often positioned on the roof or in a dedicated technical room that is present in the condominium. In this case, contacting a specialized technician or the assistance of your TV could be the only way viable.
