Satellite television is becoming more and more popular day by day. This is due primarily to the availability and high quality of the image in any area. In an attempt to reduce the cost of production and increase turnover, the manufacturer releases deliberately unfinished equipment on the market. But if a breakdown of the purchased equipment already takes place, it's time to figure out how to repair the Tricolor TV receiver yourself and not break your receiver at the same time.
Considering that most set-top boxes have one or another type of marriage, it is worth expecting that a breakdown can occur at any time.
If this happened during the warranty period, then it is better not to open the case yourself and not to violate the integrity of the factory seal.
Otherwise, no one will be able to repair the Tricolor TV receiver at the expense of the company. After making sure that more than a year has passed since the purchase, you can begin to independently detect problems. If there is no critical damage, then it is quite possible to repair the console without outside intervention. Most often, the reason lies in the following:
If these faults are found, replacement will be required. In other cases, you need to have a multimeter, screwdriver, soldering iron and continuity at hand.
The same research should be done in the second circuit of the device. Damaged diodes and microcircuits may also remain there, which will not allow the Tricolor receiver to turn on again.
As a rule, in workshops, they are replaced with a more affordable version of KA5L0380, slightly changing the installation scheme.
If you are completely sure that you can do an independent repair of the Tricolor GS-8300 receiver and that the alteration of the power supply does not scare you, then the algorithm of actions will come in handy.
Every man who has ever held a soldering iron in his hands may be able to cope with soldering the diodes and installing a new fuse, but problems may arise with replacing microcircuits and their installation scheme. A specialist repair is less expensive than buying a new receiver. But the final decision in any case is to be made only by the owner of the equipment.
Satellite TV is a very reliable source for receiving a multimedia signal. However, some types of equipment can malfunction or break down, thereby complicating the task of watching TV. This article will tell you about how the Tricolor satellite TV receivers are repaired.
Repair of Tricolor TV receivers may be necessary in cases where the stability of operation has been disrupted, or when the receiver has stopped receiving signals.
What operations are performed when repairing a dre 5000:
Testing the performance and integrity of 5000 receivers.
Repairing the dre 5000 power supply.
Replacement of firmware or any other software to receive 5000 channels.
Repair of motherboards.
Other types of repair.
Cleaning the interior space dre 5000 from dust and insects.
Regardless of what type of repair is carried out on 5000 receivers, there are general repair times if you go to a workshop. Usually this is from an hour to a couple of days.
The cost of repairing dre 5000 will cost about 150 rubles in simple cases. The more complicated the repair, the higher this figure. If it is necessary to replace parts, their cost will also be charged. Usually dre 5000 is unpretentious to repair, and spare parts for it are inexpensive, so the craftsmen do everything quickly and for a relatively small fee. After repair, you will receive a guarantee that this breakdown will not happen again within the warranty period set by the master.
When contacting workshops, there are advantages (guarantee, quality and speed of work). However, some people prefer to repair the dre 5000 with their own hands, which, in principle, is not so difficult.
Indeed, with minor breakdowns of satellite receivers, it is much more profitable and faster, but with serious ones there are disadvantages. In general, the advantages and disadvantages of doing it yourself are described in the table.
Satellite TV is not the last in the entertainment industry. And this is facilitated by the inexpensive price of equipment and an extensive list of channels. But all the joy can descend to "no" if the satellite TV receiver does not turn on.
This article will provide simple and practical ways to identify a faulty part in a tuner power supply. Although the methods are simple, their use in most cases allows you to repair the power supply of a satellite TV receiver with your own hands.
So, if your satellite TV receiver of the model: Gione, Cosmo Sat and the like has stopped working, then do not rush to worry, perhaps everything is not so bad. Try to find the cause yourself without the help of specialists.
What might you need? Multimeter, dial tone, soldering iron and a little patience.
We remove the cover of the device, and we see a free-standing module. This is a switching power supply. To start troubleshooting, remove it by unscrewing the screws and disconnecting the connector on the system board. Now the board is in front of us.
The first thing to do with the board is to visually determine if there are damaged (swollen) capacitors and other circuit elements. Often it is for this reason that the satellite TV receiver does not turn on.
If no damage is visible, then it is necessary to check the integrity of the cord and fuse. We put a dial on the ends of the fuse, and by the reaction of the device we determine its integrity.
Now, if in the circuit, when turned on, there is a short circuit, then the lamp will simply light up at full heat, without causing any harm to the circuit. If the lamp does not light up when turned on, we take a multimeter and measure the voltage across a large capacitor of 47 μF * 400 volts.
The diodes have been replaced, now we turn it on again and measure the constant voltage across the same capacitor. It should be, as mentioned above, about 300 volts. If so, then the next step in the diagnosis is to measure the alternating voltage on one of the primary windings of the transformer. How to do this can be seen in the photo below.
When the device shows the presence of a pulsating AC voltage on the primary winding, it is necessary to immediately measure the DC voltage at the output of the unit.
If you turn the plug with the slots towards you, and measure from left to right, then the voltages should be as follows:
If there is no voltage, then we do the same operation with the diodes of the secondary circuit, as described above. Having identified the faulty one, we replace it. Note the larger diode. It is labeled SR-360 and the like. He most often fails. Replacing it, you can solve the problem when the satellite TV receiver does not turn on. Again we measure the voltages at the terminals.
If this method did not give anything, then most likely the microcircuit in the primary circuit, which plays the role of a high-frequency alternating voltage generator, "flew out". But, as practice shows, this rarely happens.
That's all that I wanted to tell you about the repair of the power supply unit of the satellite TV receiver. Successful renovation.
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The main and most common malfunction of all receivers is a malfunction in the power supply and voltage conversion circuit.Also, the modulator often fails due to a short circuit in the coaxial cable from the LNB, although the latest models have good protection against short circuits in the cable, when triggered, the voltage supply to the converter simply stops until the short circuit is eliminated.
And so, our receiver does not show any signs of life, the indicators on the front panel display do not light up, and no twitching of the power plug from the outlet and turning on the toggle switch does not help us (at least that was the case with the device, an example of which is given in this article) ... The first thing we do is pull out the plug from the network and remove the top cover, we need to get to the electronic filling of the device. And here it is important to remember one thing, namely, about the warranty seal, which of course we will break if we remove the cover. Therefore, once again make sure that the warranty period has definitely expired, and under warranty no one will repair it for you. If the warranty is still valid, I advise you to take the receiver to a service center and entrust this matter to a specialist.
Receiver inside:
The electrolytic or oxide capacitor at the input often dries up and fails, which is also a malfunction, not everyone can find such a breakdown either, you need to have at least an initial level of a radio amateur. Usually, defective capacitors are swollen, yellowish, or have a small brown speck on the board at the base of the legs. Also, the serviceability of a capacitor can be determined by comparing its nominal and measured capacitance.
The receiver uses direct current, which is rectified from the AC mains using a diode bridge. Diode bridge problems also happen. It is very simple to check diodes, the main function of a semiconductor diode is to pass current in one direction, and not in the other. In my case, the transistor of the primary winding of the transformer turned out to be faulty, it is not difficult to find it, it usually has a radiator to remove heat. I determined the malfunction of the transistor by measuring the voltage at its emitter, it was absent there, the primary winding was not powered, respectively, everything else is de-energized. The transistor cost me 28.5 rubles. Replacing it with a soldering iron, I fixed the malfunction and the receiver is back in working order. I must say such a breakdown is quite a rare occurrence, usually it all ends with a fuse.
A very common malfunction is a firmware crash. The firmware often crashes, this is usually evidenced by the complete hang of the receiver. In this case, "flashing" will help. I will tell you about one more reason for the malfunction, which may arise due to poor-quality installation. Water in the cable. If the outer insulation of the cable is broken, then water from atmospheric precipitation can get inside, it easily enters the receiver like a hose, sometimes flooding all of its insides. The condition of the cable must be monitored throughout the entire service life of the device.
Satellite TV is evolving with every update and with every new device. Every satellite TV user from time to time encounters problems and errors in the robot of his receivers or other components. This can be due to various factors. For example, older models may fail due to long operating times. Despite their quality and reliability, devices can break down due to unsatisfactory weather conditions, electrical problems or improper use. Let's take a closer look at this.
Among the reasons for the breakdowns of the GS8306, GS8300, DRS-5001 models are the following:
the receiver does not start;
the timer flashes on the display of the set-top box at startup;
on the display of the prefix only a non-blinking timer;
on the display of the prefix the inscription "boot";
on the display of the prefix error message ER31;
an error on the TV display when switching on "Short circuit!" or "Check antenna cable".
In the case of the last error, you can carry out diagnostics yourself to clarify the cause of the malfunction.When the wire was disconnected, the error message disappeared, the problem is with the satellite converter or the antenna cable. Next, you need to check the wire in case of a short circuit. If it is not there, there is an error in the satellite converter. But, if the TV still signals an error, the problem is in the tuner.
These types of breakdowns include other representatives of the series of MPEG-2, MPEG-4 and Full HD set-top boxes. There is no need to prematurely go to the store for another device, because the purchase will definitely cost a lot. It is recommended to contact service center for qualified help, or repair the receiver with your own hands, if you have the necessary skills.
Diagnostics show that often the components of the set-top box fail:
firmware - this can be detected if you see errors on the display;
receiver power supply Tricolor - when the receiver does not turn on or the timer is flashing;
motherboard - only timer is displayed or in case of error ER
However, satellite TV users may encounter picture, sound or signal problems. This also happens due to problems with the receiver. The following are attributed:
breakdown of the satellite converter;
the antenna cable is damaged;
breakdown of the tuner unit;
weak signal due to obscuring trees;
unsatisfactory weather conditions.
The reasons also include channel broadcasting frequency change or even a whole package of channels or satellite malfunctions, to which the service center has nothing to do.
First of all, you do not need to start repairing Tricolor receivers yourself if you are 100% not sure what and how you are doing. If the warranty period is valid, it is best to entrust the repair of the Tricolor satellite receiver to a specialist. But, this is possible if there is a warranty card, purchase receipt, client's signature. The repair warranty may be voided if:
operation of the receiver during power surges;
damage to the seal or the integrity of the structure;
errors when switching, connecting cables or incorrect programming;
the receiver was not installed by an installer, and this led to a breakdown during operation;
the client has violated the terms of use;
All this must be adhered to if the client wishes to repair his receiver in the future.
Repair of the Tricolor TV receiver is as follows:
replacing the motherboard;
changing the power supply;
replacement of the module;
flashing or reinstalling software.
If the motherboard breaks down, it is most often recommended to buy a new and more modern version of the set-top box, because repairing the motherboard will cost almost at the price of a new receiver.
For example, there are a number of errors typical for each type of device and options for correcting. The peculiarity of the repair of Tricolor GS8300 receivers depends on the alteration of power supplies, because the devices are not highly resistant to voltage surges. Overheating was a typical problem for the GS 7300, causing the diode bridge or chip to break. Also, the power supplies for the Tricolor receivers sparked after prolonged operation, so they often had to be changed. The most optimal model, the GS8306, also had typical problems. For example, overheating during prolonged viewing of channels.
VIDEO
Written by Administrator on 07 December 2011.
Hello, today we will try to fix the Tricolor TV receiver with our own hands. Many faced such a problem when the warranty (usually 12 months) expired and the receiver suddenly failed. A new one is expensive, and in most cases the repair will not be difficult and will cost a penny, if you are even a little friends with a soldering iron, the main and most common faults are easy to fix yourself. Let's consider such a repair using the example of another GS-8300 N receiver from the Tricolor TV company. I must say that the device is not of the best quality, and of course, Tricolor TV is not worth the money that Tricolor TV takes for it. But, nevertheless, the number of subscribers is large and not all of them work for a long time and regularly.
The main and most common malfunction of all receivers is a malfunction in the power supply and voltage conversion circuit. Also, the modulator often fails due to a short circuit in the coaxial cable from the LNB, although the latest models have good protection against short circuits in the cable, when triggered, the voltage supply to the converter simply stops until the short circuit is eliminated.
And so, our receiver does not show any signs of life, the indicators on the front panel display do not light up, and no twitching of the power plug from the outlet and turning on the toggle switch does not help us (at least that was the case with the device, an example of which is given in this article) ... The first thing we do is pull out the plug from the network and remove the top cover, we need to get to the electronic filling of the device. And here it is important to remember one thing, namely, about the warranty seal, which of course we will break if we remove the cover. Therefore, once again make sure that the warranty period has definitely expired, and under warranty no one will repair it for you. If the warranty is still valid, I advise you to take the receiver to a service center and entrust this matter to a specialist.
The electrolytic or oxide capacitor at the input often dries up and fails, which is also a malfunction, not everyone can find such a breakdown either, you need to have at least an initial level of a radio amateur. Usually, defective capacitors have a yellowish appearance, or a small brown speck on the board at the base of the legs. Also, the serviceability of a capacitor can be determined by comparing its nominal and measured capacitance.
The receiver uses direct current, which is rectified from the AC mains using a diode bridge. Diode bridge problems also happen. It is very simple to check diodes, the main function of a semiconductor diode is to pass current in one direction, and not in the other. In my case, the transistor of the primary winding of the transformer turned out to be faulty, it is not difficult to find it, it usually has a radiator to remove heat. I determined the malfunction of the transistor by measuring the voltage at its emitter, it was absent there, the primary winding was not powered, respectively, everything else is de-energized. The transistor cost me 28.5 rubles. Replacing it with a soldering iron, I fixed the malfunction and the receiver is back in working order. I must say such a breakdown is quite a rare occurrence, usually it all ends with a fuse.
A very common malfunction is a firmware crash. The firmware often crashes, this is usually evidenced by the complete hang of the receiver. In this case, "flashing" will help. I also want to say about another cause of the malfunction, which may arise due to poor-quality installation. Water in the cable. If the outer insulation of the cable is broken, then water from atmospheric precipitation can get inside and it easily enters the receiver like a hose, sometimes flooding all of its insides. The condition of the cable must be monitored throughout the entire service life of the device.
Electronic devices surround us everywhere: on the street, at work, at home. With the rapid growth and availability of satellite television to the general public, a wide range of satellite equipment has emerged for the general public. These are satellite receivers, conditional access modules, antennas, converters, etc. Whether we like it or not, sooner or later breakdowns occur with them, which cause us to feel the loss of our beloved thing.
You should not despair - for this there are service centers that you can turn to and they will help you to bring your equipment back to life.
Breakdowns of equipment occur for various reasons - voltage drops, failure of various nodes, wear and tear of the equipment itself from its venerable age, you can also note the incompetence of the owners themselves, say, improper replacement of software in satellite and cable receivers.
Power supply failure is perhaps the most common type of digital terminal failure. It occurs for various reasons: a poor-quality supply network (see.photo), not high-quality radio components were used, especially this is de facto in Chinese technology.
Also, this can include a violation of operation, dust, dirt, as a result of this, the thermal regime is not correct (see photo).
A service center is a structural unit within a company. He is responsible not only for the repair and maintenance of products sold by our company, but also for the repair (including warranty) of satellite equipment from other companies. Our clients are not only individuals - users, but also equipment dealers who seek to save their customers from the problems associated with the repair and maintenance of receivers. Our flexible corporate customer policy allows us to provide adequate service and meet the interests of all customer groups. This is more than 1000 units of equipment per month. To carry out such large volumes, of course, allows the professionalism of the employees, the equipment of the service center with professional equipment, tools and technical documentation. Therefore, in our service center we carry out high-complexity repairs: for example, replacing processors in BGA cases. Repair takes place in the shortest possible time.
The supply department, in addition to its main function - the purchase of equipment, is also engaged in meeting the needs of the service center, purchasing components necessary for repair. And here it is worth noting that the selection and purchase of components for repair is carried out according to the following criterion: the quality of parts comes first, their price comes second, but due to the large volumes of supplies of parts, the price ultimately remains low.
Of course, unforeseen moments happen - for some reason, the repair is delayed. This usually happens due to the lack of some scarce radio component. Sometimes repairs require a complete replacement of the motherboard, and this repair part is not always available. In this case, we are trying to find some acceptable solution together with the client, taking into account his wishes, combined with our capabilities.
At autopsy, found out of order:
According to the table on identification and selection of analogs https://my.housecope.com/wp-content/uploads/ext/2561/ic_power/, the last part was replaced with SG6848 with minimal interference with the factory circuit.
SSS4N60B (TO-220F package) was installed instead of the burnt-out Q1
On Telesputnik posted a diagram of the power supply unit.
The receiver turns on, the LNB has 18 volts. There is no video signal, it gets very hot (the finger does not hold) stv 6419 .. because of it there can be no video? there is no other point? (in the sense that more video signal is not to be taken from?) the receiver switches channels ..
GS 8300N receiver there is no video and audio signal through scart to the TV, the channels are switched on the receiver panel.
the video signal from the STi5119ALC chip can be checked with an oscilloscope at the control point opposite the capacitor C117, then it comes to the resistor R87 and is transmitted to the capacitor C129 and then goes to the STV6419 microcircuit from it there is no output to R91, the culprit is not 12 volts on the board, respectively, there is no power + 12V on the 3rd leg STV6419, a 12 volt Zener diode D3 is faulty near the power connector
There was such an answer: if you use only composite video signal, most likely it can be simply thrown out (replaced with a jumper). And where to put the jumper? if that's the right advice ..
Defective VD3 (VD3 zener diode 12 V) on the motherboard next to the power connector.
Zener diode brand and parameters:
Power supply + 12V for 3rd leg STV6419.
Zener diode analog:
VD3 STV6419 similar Zener diode (SMD) did not find. Put a 0.5 watt glass zener diode the size of a diode kd522 ... While the flight is normal.
If replacing the zener diode did not help:
After the thunderstorm, 6419 swelled. After the replacement, the image did not appear, but when checking the strapping, two resistors were cut off, R91, R95 ... I replaced it, and it worked.
One more problem:
And yet, instead of 13, 18 Volts, 24V was running on the LNB. Replacement required DA1 (LM317T) ... And that's it, the flight is normal
The same situation with the GS-8304 receiver:
After 5 years of operation, the GS-8304 suddenly stopped broadcasting, although the indication is working properly. Zener diode brand MMZE5242B.
Satellite TV is a very reliable source for receiving a multimedia signal. However, some types of equipment can malfunction or break down, thereby complicating the task of watching TV. This article will tell you about how the Tricolor satellite TV receivers are repaired.
Repair of Tricolor TV receivers may be necessary in cases where the stability of operation has been disrupted, or when the receiver has stopped receiving signals.
What operations are performed when repairing a dre 5000:
Testing the performance and integrity of 5000 receivers.
Repairing the dre 5000 power supply.
Replacement of firmware or any other software to receive 5000 channels.
Repair of motherboards.
Other types of repair.
Cleaning the interior space dre 5000 from dust and insects.
Regardless of what type of repair is carried out on 5000 receivers, there are general repair times if you go to a workshop. Usually this is from an hour to a couple of days.
The cost of repairing dre 5000 will cost about 150 rubles in simple cases. The more complicated the repair, the higher this figure. If it is necessary to replace parts, their cost will also be charged. Usually dre 5000 is unpretentious to repair, and spare parts for it are inexpensive, so the craftsmen do everything quickly and for a relatively small fee. After repair, you will receive a guarantee that this breakdown will not happen again within the warranty period set by the master.
When contacting workshops, there are advantages (guarantee, quality and speed of work). However, some people prefer to repair the dre 5000 with their own hands, which, in principle, is not so difficult.
Indeed, with minor breakdowns of satellite receivers, it is much more profitable and faster, but with serious ones there are disadvantages. In general, the advantages and disadvantages of doing it yourself are described in the table.
Site about Tricorol TV. Services, package review, channel list, news, promotions and equipment reviews, discussion. Help for subscribers. Forum Tricolor TV. Official site, main page tricolor.tv
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