From time to time, satellite television users encounter various technical problems and glitches. So, many are interested in why an alert appears that a short circuit has occurred on the LNB IN Tricolor. There are several reasons for such a failure, which we will examine in more detail.
- In conclusion
Short circuit on LNB
If the following message appears on the TV screen: “Short circuit on LNB . Check the antenna cable” , then there may be two reasons:
- The converter on the antenna is faulty (wear, damage from lightning or ice).
- There are problems with the antenna cable (water ingress, freezing, mechanical damage, breakage, wear).
To eliminate the malfunction, it is necessary to carry out a full diagnosis of the Tricolor TV satellite system with step-by-step testing of sections of the system.
To carry out repair work, access to the antenna must be provided. Upon request, the master can take with him a ladder with a height of 6 to 10 meters. If access to the roof is limited by the HOA or management company, you need to take the keys to the roof in advance. The installer can provide a letter of guarantee and a low-current systems engineer's certificate.
Tricolor TV repairs are carried out upon diagnosis.
The cost of visiting a specialist to carry out diagnostics: 800 rubles. in Moscow, 1,200 rub. in the Moscow region. The cost of repairs is determined after identifying the exact cause of the breakdown.
Make a request: 8-999-802-91-02
When installing a set of Tricolor equipment for viewing encrypted satellite broadcasts, you cannot help but pay attention to the cable network inside your house or apartment. If installation is careless or materials are chosen incorrectly, the receiver often displays an error indicating that a short circuit has occurred on the LNB IN. There may be several reasons for this problem. The elimination of some will require exceptional care and accuracy, while others will mean physical breakdown of the equipment.
In conclusion
To cope with such a problem, you need to know why it appears. Take appropriate action in the future. It should be noted that it is not always possible to solve the problem on your own; very often you need the help of specialists who will repair the equipment.
When installing a set of Tricolor equipment for viewing encrypted satellite broadcasts, you cannot help but pay attention to the cable network inside your house or apartment. If installation is careless or materials are chosen incorrectly, the receiver often displays an error indicating that a short circuit has occurred on the LNB IN. There may be several reasons for this problem. The elimination of some will require exceptional care and accuracy, while others will mean physical breakdown of the equipment.
Reasons for the error
A short circuit on the Tricolor antenna can occur for the following reasons.
- The outdoor antenna unit was installed carelessly, which is why the receiver writes “short circuit” during bad weather.
- The wrong cable has been used or its service life has expired.
- There is damage to the cable line.
- When organizing switching, errors were made or low-quality components were used.
- Damage to antenna unit components.
- Firmware failure on the Tricolor receiver.
The first of these reasons is diagnosed quite simply. If everything works well in clear weather, but a short circuit occurs in rain, you should check the nature of the cable installation on the antenna unit and its waterproofing . To prevent water from flooding the switching points, the wire must approach the converter from below, and the connections must be carefully wrapped with electrical tape.
Cable problems
Most often, LNB IN short circuit of Tricolor TV occurs due to cable damage. Some of the options are related to the quality of the products used for laying. Intended for installation indoors, the coaxial cable quickly breaks and fails in the area of the outdoor antenna unit.
Existing line damage is located visually. To repair them, cut out a piece of the broken cable and install a jumper from a wire terminated with F-connectors.
To get rid of problems when operating the cable structure, it is recommended:
- use the wire for laying outdoors;
- carefully secure sections of the cable line to prevent breaking and abrasion of the external insulation due to swinging and friction against the walls;
- in areas where there is a risk of mechanical damage, place the wire inside a plastic corrugated pipe.
A cable line laid in accordance with all the rules will last even longer than stated for the wire used. Therefore, it is not worth saving on purchasing it and additional materials. Tips for choosing coaxial cable are given in this article.
How to connect a TV to a satellite dish
Connection methods:
- The cable is connected to the receiver;
- The cable is routed to the TV without a receiver, directly from the antenna.
Direct connection to TV receiver
Direct connection is only possible if the TV is equipped with a DVB-S2 for decoding digital broadcast signals. The presence of a tuner in the device can be checked in the technical data sheet of the product, or on the product characteristics page in the online store. After connecting the cable from the satellite dish, the TV will be able to pick up signals from free foreign channels.
To watch Russian satellite channels, you will need a CAM adapter with a paid access card to the television channel. It is loaded into the TV via the PCMCIA slot.
IMPORTANT! Before subscribing to a channel and purchasing CAM module, make sure that your TV model is compatible with the adapter provided by your provider.
Installing the plate
Select the correct location to install the equipment. To receive television broadcast signals, the dish must be accurately pointed at the satellite. Any physical obstacles interfere with the signal's passage: trees, walls, the location of the house in a lowland.
IMPORTANT! The plate must remain within reach even after installation. For the device to operate correctly, the TV antenna will need to be configured correctly.
TV satellites are dispersed in areas extending from southeast to southwest. Satellites concentrated in the south are highest from the horizon.
Installation errors and low-quality components
To understand where a problem may arise during installation, it is worth recalling what to do to install the F-connector.
- 1 cm of cable is freed from external insulation.
- The braid and foil of the screen are folded back and laid on the insulation.
- The central core is freed from the internal insulation and inserted into the hole in the F-connector.
- The connector is forcefully screwed onto the braid and foil laid on the insulation.
Based on the algorithm of action, it is easy to understand where an error may occur. If you handle the braid carelessly, it is easy to leave a thin wire that will touch the central core and cause a short circuit. In addition, there is a danger of purchasing low-quality connectors. Products from small companies often do not meet manufacturing accuracy standards and may have scuffs and burrs on metal parts. When screwed on, their elements come into contact, causing an error on the receiver.
Receiver failure
Most rarely, a short circuit on the Tricolor antenna is false. The receiver displays an error due to a breakdown. In this case, the subscriber can:
- reset the device to factory settings in accordance with the model’s operating instructions;
- install the latest software on the receiver.
At the end of the firmware update process, the device will reboot automatically. If the error does not disappear even after disconnecting the antenna cable, the receiver requires repair. Here you will need the services of Tricolor company specialists.
You can return the receiver for repairs at the nearest Tricolor subscriber service branch. The company's operators will readily tell you what to do to quickly resolve the problem and tell you the coordinates of the service center.
Why does the message “no signal” appear instead of broadcasting, or does Tricolor begin to show a short circuit on the antenna, what should I do? When this happens there can be several reasons, namely:
- Bad weather.
- Settings failed.
- Damage to the connection.
- Antenna problem.
Antenna operating principle
Satellite television is a system for transmitting information from a data source to a consumer through a repeater. The role of a relay is played by a satellite located in a circular orbit of the Earth above the equator. The satellite system makes it possible to transmit a signal over a large area. Compared to terrestrial broadcasting, this type of broadcast transmits data much more efficiently.
Equipment for capturing and processing satellite television signals:
- Satellite antenna. There are many types of antennas for receiving satellite signals. The most famous type of satellite television antenna is the parabolic dish. Externally it looks like a concave disk. A satellite dish is a mirror antenna. Electromagnetic waves hit the metal surface of the plate and are reflected by a reflector.
- Satellite converter. This is a device that contains a signal amplifier and a frequency converter that works downward. The converter is mounted on the antenna feed. It is powered by electricity and connected to the receiver via a coaxial cable. By installing several satellite converters at once, you can receive many free TV channels.
- A satellite tuner, also known as a receiver, is a small flat box. Receives television signals and decodes them, adapting them for further transmission via wire to a television device. The receiver can be built directly into the TV body. In this case, the cable from the converter goes directly to the TV, or to an adapter.
Causes of short circuit and search for solutions
If the TV screen shows the message “no signal” and there is bad weather outside, it is better to wait it out. The problem may resolve itself.
The thunderstorm is over, but the reason remains, perhaps the settings have failed, you need to reset them. This is done very easily and simply. In the future, these skills will be useful in case of any problems with the receiver.
If adjusting the receiver does not eliminate the cause, inspect the connection and antenna. It is slowly rotated, fixing each position for 3-5 seconds until the image appears .
Tricolor TV error codes
0 — poor signal reception level; The service package has not been activated in your personal account on the website.
2 — the smart card is installed incorrectly; The receiver cannot read the data from the card.
3 - access to watching TV channels is blocked, access keys to TV channels have been lost.
4 - no access (broadcast via a third-party resource, encrypted channel).
5—smart card not recognized.
6, 7 - the receiver does not see the card and access to the channels is blocked.
8 - the smart card is not supported by the receiver.
9, 10, 11 - problems with payment.
12, 13 - the receiver is incorrectly registered, there is no access to viewing.
30 - problem with the receiver board.
BOOT - the software has crashed.
Short circuit - decoder or connecting cable is faulty.
ER 31 - the receiver’s motherboard has failed.
Lack of channels - a failure in the receiver’s programs; you need to search for channels.
How to fix a short circuit
When Tricolor writes that a short circuit has occurred on the antenna, inspect the coaxial cable connecting the heads of the satellite dish to the receiver.
You need to visually check the braid on the core, or, more precisely, whether a “hair” from it will get onto the connecting wires. They begin such an inspection from one end of the cable to the other, looking for fractures and cracks that will lead to a short circuit in the future.
A light bulb with a flashlight, as well as a battery that can be taken from a mobile phone, will allow you to reliably check the cable. By connecting them with a wire, they make a circuit. A core is placed between them - it is solid, if the light is on, if not, they look for a break. So, in turn, check each cable wire. They should communicate well with the device, the braid too, and the resistance between the braid and the core should be high. If the light comes on, then everything is in order. But if the light bulb does not light up, we have low resistance. This indicates closure.
When this happens, the cable must be replaced with a new one that is designed for outdoor use. And to better protect it from atmospheric conditions, you can use a corrugated pipe.
If the cable is too long, they deliberately short it at one end between the central core and the braid, and check it with a device at the other. It caught fire, which means that the braid screen and the cable core are intact.
There are cases when technicians incorrectly connected the ends of the f-connectors, which can damage the receiver, as well as the LNB. Having noticed this, it is necessary to strip the top insulation up to 2 cm, pull the silver screen back, strip the central wire and screw on the f-connector; if it protrudes more than 2-3 mm, cut off the excess except the screen.
