Accordingly, I had to replace the module from the donor. and throw the track MGTF - ohm.
Only the radio works (as an option), does not reset to factory settings, freezes and turns off, is not flashed via USB, is not updated in any way.
The receivers of many Tricolor subscribers may stop turning on. How to check the receiver, and what measures to take if a malfunction is detected.
To detect the problem, the user himself can carry out simple actions that involve diagnosing the equipment. Moreover, it is possible to assess the performance of individual links or the entire chain of signal input from the antenna to the receiver.
A Tricolor subscriber, with certain knowledge and skills in electrical circuits or power circuits, can diagnose a broken receiver with his own hands. This will avoid long-term recovery of the receiver in service centers. Having decided to open the equipment, the user should know the special symbols used on the internal elements.
Testing of receivers of the GS series.
For models of old receivers, the presence of an external power supply is characteristic.The power problem may be due to a malfunction of this element. A Tricolor user can buy a new unit and enjoy watching TV.
When opening a part, the location of the element should be observed. Observe all limits when soldering a new capacitor.
Repairing the power supply will allow the supply of current to resume. If power is supplied, the indication is triggered. Saving the "non-switching" state in the presence of indication is associated with other breakdowns.
VIDEO
When a message appears, the subscriber first checks the likelihood that it is coming from the receiver and not from the TV. The indicators on the receiver are on, and when the buttons are pressed, a response occurs. When calling the Receiver Menu, the device displays a corresponding window. This means that the equipment is correctly connected to the TV, and the error is related to the operation of the receiver.
If the weather is good outside and the provider does not carry out technical work (information about technical work is presented on the company's website or displayed in advance on the Info channel ), the message may appear due to the following reasons.
The antenna gets lost under the following conditions:
Bad weather;
Poor anchorage;
Long-term operation;
Falling heavy object.
An offset of 1 cm causes the signal to disappear. The user needs to analyze the anchoring stiffnesses. If there is a weakness in the attachment, then the adjustment will allow you to achieve the desired signal range. The signal is monitored on the TV display during the period when the "Settings" section in the Receiver Menu is switched on.
After the initial adjustment, it is required to perform a fine tuning operation so that the corresponding scales of the signal parameters are filled at the level of 70-80%. The final step involves securing the pole bolts to the antenna.
If a large object falls on the antenna, it leads to changes in geometry, which implies a change in equipment.
Often, changing the situation on your own does not bring positive results. The cymbal installation and setup wizard will be able to quickly set up the signal. The cost of services depends on the region and place of installation of the equipment.
The subscriber should check the cable from the plate to the receiver. If a breakage site is identified, the wire should be restored using the tools at hand and the F-connector (if one is damaged). Repair stages:
Cut the wire in the area to be restored;
Clean up the connecting zones;
Use F-connector on stripped ends;
After fixing the connection, screw on the electrical tape.
Operation is not performed on repeated break. A new wire must be used. Some masters, without visually determining the gap, carry out the determination of hidden defects in the cable using a tester.
A cable coming out of the connector may cause no signal. It is required to screw it back under the action of force. The damaged connector can be replaced.
The converter is one of the connecting links in the signal transmission chain. Being constantly on the street, he takes on the effects of weather and the negative influence of the external environment. When purchasing the equipment, warranty service is provided for 1 year. In practice, the part is used for 3-6 years.
An ordinary user will not be able to determine the breakdown. If other variants of the signal deficiency are excluded, the part should be replaced.
A new converter is purchased at the sales office. Replacement instructions:
Disconnect the element from the mount;
Fix the new converter without moving the antenna;
Carry out the range of signal stability on the appropriate scales displayed using the receiver menu on the TV;
If the settings are out of order, re-adjust the plate.
When calling a support specialist, you will have to pay for the services of identifying the problem and installing a new part if replacement is necessary.
Interference is various objects that appear on the signal transmission line from the satellite to the antenna:
Tree branches;
Construction of a high-rise building;
Snow build-up.
The method for removing the obstacle depends on the object that has arisen. The subscriber can simply reinstall the antenna to make way for the signal. After the transfer, you will need to re-configure the signal.
The performance of the "heads" is revealed after disconnecting the disk (several converters). Then each is connected to the receiver.
If there is no response to the remote control buttons, you should perform the action using the keypad on the receiver itself. If the actions are in progress, then the receiver is functional. After changing the batteries in the remote control, re-check the control with the remote control. Resumption of work did not occur - you need to use a different remote control.
Craftsmen can try to check the operation of the remote control in another way. For this, a mobile phone camera is used. Direct the remote control LED into the switched on camera.
Point the remote at the camera.
While looking at the camera and pressing the buttons, follow the LED indication:
Stable flashes indicate the serviceability of the remote control;
The unstable light with interruptions is due to the inoperability of the board;
Lack of indication implies a malfunction of the remote control or insufficient battery power.
If, after changing the batteries, the LED does not start blinking, then you should buy a new remote control.
Repair of the device in case of rare luminescence is carried out by disassembling the case and cleaning the surface of the board with a damp cloth, soapy water and a dry cloth. After all cleaning operations, dry the parts and assemble the remote control. If the flash does not become constant when viewing through the camera, then a new device is required.
Receiver is a link responsible for receiving a signal and transmitting a video stream. The device may break technical elements or malfunction of the software. The receiver itself has a warranty period (1 year), during which specialists must repair the device.
If a breakdown occurs after the end of the warranty period, then you can carry out an independent diagnosis or give it to a service center. Frequent problems are displayed as errors on the TV screen or the device itself. Please note that these errors are inherent for some models:
DRE 5000, 7300, 5001;
DRS 5003;
GS 7300, 8300, 8300N, 8300M.
For other receivers, there may be a coincidence of errors.
Failure of the software, which requires a flashing of the device;
The motherboard is not working properly or is broken.
Replacement of the motherboard is carried out at the repair center. There are daredevils who do it with their own hands. Then you will need to disassemble the receiver and remove the old element. This will void the warranty.
The burning of all indicators and symbols allows us to conclude that there was a software failure. In some cases, the motherboard breaks down. After disassembling the receiver, specialists will be able to determine the true cause of the breakdown. During normal operation of the power supply, the motherboard will be replaced. When other boards are damaged, it is better to buy new equipment, as the cost of repairs can be high.
Receiver motherboard.
The message is translated as "short circuit". The process can take place in several areas. Diagnostic steps:
If the inscription disappears after disconnecting the antenna wire, then a broken converter, a plate or a short circuit in the wire may be a cause for concern;
Inspect the wire for a sign of a short circuit by unhooking it from the converter;
When the wire was pulled out, the message did not disappear - the tuner unit was out of order.
The subscriber can diagnose the breakdown himself.
The updated software may not install correctly. As a result, the receiving device will not turn on. The subscriber must follow the steps of resetting the settings:
Find and open the "Settings" section in the Receiver Menu;
Select the command "Reset";
After confirmation, wait until the end of the process and restart the receiver;
When turned on, you may need to enter the access code - then the combination "0000" is entered;
After logging into the system, the necessary parameters are set (language, time, location);
To install TV channels, you need to perform a search operation and save the changes.
After diagnosing the equipment and excluding all variants of breakdown, you can contact the service center. First, you need to remember about the availability of a guarantee, if it is still valid. The period is usually set at 12 months. After finding the warranty card, contact the nearest service center. After a quick diagnosis, employees will be able to repair a broken part free of charge.
When the warranty has already expired, you will have to take the product to service under normal conditions. Specialists can open the case and identify the cause. After that, they will offer to carry out repair work, announcing the cost of spare parts and repair procedures. It should be borne in mind that the long service life of the receiver leads to the development of the mortgaged resource. Therefore, for greater savings, it is better to buy a new receiver than to repair an old receiver.
What if the receiver does not turn on after a power outage?
It is necessary to check the functionality of the power supply.
How do you know if the receiver is burnt out?
The device does not respond to the activation of the buttons and the indication does not turn on.
Why does the receiver turn on and off by itself?
The reason may be outdated software, involuntary failure of the power adapter, or problems with contacts.
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. Problems with the diode bridge 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 eliminated 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 arises for various reasons: a poor-quality supply network (see photo), poor-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 the 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 occurs 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.
The receiver has arrived with a malfunction - it does not turn on, the panel constantly says “boot”.
Available programmer TL866A. Officially, he does not sew these flashes.W25Q128BV , disable the ID and connect the pins to the USB flash drive according to the datasheet. We connect the pins SOIC8 - SOIC16, respectively: 1-7, 2-8, 3-9, 4-10, 5-15, 6-16, 7-1, 8-2.
After the update, do not forget to update from channel 333 to the latest firmware version, if you installed not the latest one.
Click! gs 8306 after update, repair!
Gs 8306 after the update stopped turning on completely. Maybe both LEDs are on on the display and then the receiver hangs. All this suggests that the receiver has lost boot sectors, simply - broken. If, as a result of diagnostics, it is confirmed that the matter is in the flash memory, then we do the procedure for restoring our receiver to working condition.
We disassemble the receiver, prepare our main board for repair.
gs 8306 stopped turning on after the update.
If necessary, we clean the main board from dust and other contaminants.
We take the flux, apply it to the contacts of the microcircuit. All contacts must be covered in order to make it easier to remove our microcircuit from the main board.
We turn on the soldering station, take a hair dryer and begin to warm up the element that we need to remove. In this repair we are interested in W25Q128BV.
After we removed the microcircuit from the main board, we proceed to programming. For this we need a programmer and a corresponding socket - adapter.
We insert into the programmer, turn on the program. We are looking for the device to recognize our USB flash drive.
W25Q128BV programming on chipprog 48
If everything is in order and the contact is good, then you can upload a new dump to the microcircuit memory. ChipProg-48 during operation will show in what state it is, if there is an error, the red indicator will be on.
ChipProg-48 programming 8306
After everything has been requested, we mount the microcircuit on the board. First we apply the flux.
Next, we warm up the board with a hairdryer, wait until the solder turns into a liquid state. If necessary, position the microcircuit on the board.
We do 8306 after an unsuccessful update.
When everything is soldered, we wait until everything cools down. We take the front panel, connect the power supply. Our receiver starts working! We check our receiver in all modes.
If you still have questions, you can watch our video, in which we have shown everything visually! The main thing - remember, if you are not confident in your abilities, then take the broken receiver to the service center!
VIDEO
Good day. Nikolay is writing to you from Togliatti. Faced the same problem that you describe in the article. There is not enough file for the solution with the latest firmware, 1.9.160. I found only version 1.2.001 on the Internet. If it does not bother you, please send it to the mail, thanks in advance. Yes, the article is extremely useful, because the problem is becoming widespread ... Thank you so much for the information.
Best regards BNikolay, Togliatti
I read reviews on the 1.9.160 firmware on your resource ... and well, where to go. Could you throw off the previous version instead. Do not consider it arrogance.
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:
The power supply fails, which is typical for a Tricolor TV receiver with a poor-quality assembly.
The integrity of the cable is compromised, and as a result, moisture gets into the device.
The software requires an update.
Removing the cover from the case, we can find the cause of the breakdown:
a large amount of accumulated dust, which probably caused overheating;
rainwater that easily reached the receiver through the damaged cable from the antenna;
blown fuse;
kinks or breaks in the adapter cord prevent the equipment from turning on.
If these faults are found, replacement will be required. In other cases, it is necessary to have a multimeter, a screwdriver, a soldering iron and a continuity on 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.
Original PWM controller chip almost impossible to find.
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.
You should start by deleting Q1, U1, R3, R4, R5, R6, C2, C3, R8, R11, R13, R7, R12, R9, R14.
Check for operability and, if necessary, replace elements C14, C9, C15, C18.
Note the transistor Q1 on the indicated microcircuit.
Solder 1, 2, 3 legs KA5L0380 into the board.
Connect the 4 leg with a wire with the U2 optocouplers.
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. 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.
VIDEO
The GS-8307 receiver is a complete analogue of the GS-8308 and is better in quality than its predecessor under the number 8306. The design of this device has slightly changed, and for the better, an information board has appeared, and the indicator on the network key has become less bright.
The GS-8307 receiver is a fairly popular model. There is nothing complicated in its firmware if you follow all the instructions.
If the viewer becomes buggy, there are problems in its work, or you just want to update it to the latest version of the system, the solution is to flash it. And we will tell you how the GS-8307 firmware changes so that you can complete it without contacting specialists, because this will save time and money.
You will need a computer, a free flash drive and the firmware file itself - you can download it on the World Wide Web.
Before you start replacing the software, pay attention to the following recommendations:
Be sure to format the USB flash drive in FAT32 format.
Use the firmware that is designed for your model, otherwise you will make your device inoperative, you will have to carry it for repair. But even this may not solve the problem.
Download files exclusively from trusted sources on the global network, look for official archives.
Please note that after reinstalling the software, you will not be able to return to the old shell - think carefully if you are sure that you need to change the firmware. In addition, if something goes wrong during the installation process, you will still need to replace the system - there is no backup option like on a tablet or smartphone.
The main thing is to follow the sequence of actions, especially the process itself is quite simple, even if you are not an advanced user.
So, to replace the software on your device, do the following:
Connect a formatted USB drive to your computer and copy the folder with the new firmware to it. Do not change the folder names.
Remove the USB stick and insert it into the switched off GS-8307 receiver.
Turn on the device, after which it should itself see the drive with the new firmware.
When the automatic updating of the device starts, wait until the process is finished, turn off the receiver.
Disconnect the drive and restart the device - it will start working with the new software.
How to flash GS-8307 if boot is on? In this situation, the replacement of collateral occurs in the same way.
We can conclude that everything is extremely simple. Replacing the firmware takes little time and does not require any special technical knowledge.
VIDEO
Video (click to play).
So you do not need to carry your device to the service and pay money to the master - the main thing is to download the required file and follow all the steps of the instructions in order. And if in the future you have constant malfunctions in the operation of the GS-8307 device, simply replace the software in it as described above. And if this did not help, then you will probably know that you need to contact a specialist or buy a new receiver.
The meaning of the designation is safety. If some parts are marked with this warning, manipulating these elements could damage the accessories or the entire receiver.
The meaning of the sign is a threat. Lightning indicates danger during opening or situations when operations are performed with elements. The danger is associated with injury to health or life.
