Do-it-yourself gs b210 receiver repair

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I am repairing Tricolor receivers and did not expect that my personal B210 receiver, which I recently received when exchanging “old” equipment for “new”, would break after only half a year.

The diagnosis is simple: “Does not turn on”, “does not light up red and green”

I am an inquisitive person and therefore did not become wiser with a guarantee.

When measuring the supply voltage directly on the board, the voltage of 12 V is drawn down to 0.5V. Although separately the unit gave out voltage as it should. A short-circuit test showed that there was no receiver at the input. How so?

This means that the voltage sags on the secondary power circuits, after the pulse-width modulators.

So it is, it's all about low-quality parts.

After PWM closed the SMD capacitor at 25 microfarads.

The GS B210 receiver was brought in for repair with a malfunction; it does not turn on, the receiver was checked at the acceptance and indeed, when you turn on the receiver, it only shows the boot splash screen and nothing happens. These receivers are known for their typical malfunction, when the nand flash firmware S34ML04G100BHI000 flies by itself. This flash drive can be flashed with any programmer that supports nand firmware, there is nothing complicated in the firmware technology itself, if anyone has ever used a programmer, this can be done without difficulty.

Any diagnostics begins with an inspection of the printed circuit board and soldered components, after making sure that no mechanical damage was found, we proceed to measuring the supply voltages, I prepared the measurements taken on the working receiver.

Rated voltages of the receiver GS B210

• U19-5v
• U16 - 1.5v
• U22 - 3.3v
• U20-1.1v
• U18 - 1.2v
• U2 - 3.3v
• U21-14v

After we checked the power and made sure that everything is in order, then you need to unsolder the nand and flash it, I use the programmer from the forum> it is easy to use and works with many microcircuits, I also use it to flash TVs, the only inconvenience is that you need to roll it 2 times balls on the microcircuit, but you can buy an adapter socket and screw the socket with zero effort; you can buy it on Ali, the ladies link at the very end.

There is nothing complicated in the soldering of the nand chip itself, you need to apply a flux around the perimeter of the microcircuit and solder it with a hairdryer, and here for each master individually everything depends on the equipment and soldering habits, for example, I use a cheap soldering station and the temperature on the hairdryer is always at the maximum, but here you need not to overdo it and not overheat the chip.

After soldering, you need to collect the remnants of solder from the nickels with a braid so that the nickels are smooth.

Next, you need to roll the balls onto the microcircuit, I use 0.45 balls and a BGA63 stencil from their Chinese set, links will be at the end.

After the firmware, the receiver earned in normal mode.

Tools and consumables used in this repair.

Hello, today we will try to fix the Tricolor receiver. Many faced such a problem when the warranty (usually it is 12 months) ended, and the receiver suddenly failed. A new one is expensive, and in most cases, repairs will not be difficult and will cost a penny, if you are at least a little friends with a soldering iron, the main and most common malfunctions can be easily fixed by yourself.Consider such a repair using the example of another receiver from the Tricolor company GS-8300 N. I must say that the device is not of the best quality, and of course, the money that Tricolor takes for it is not worth it. But, nevertheless, the number of subscribers is large and not all of them work for a long time and properly.

The main and most common malfunction of all receivers is a malfunction in the power supply circuit and voltage conversion. Also, the modulator often fails due to a short circuit in the coaxial cable from the LNB, although the latest models have good cable short circuit protection, 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 juggling of the mains plug from the outlet and turning the toggle switch on and off does not help us (at least, this 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 the warranty seal, which we will certainly break if we remove the cover. Therefore, once again make sure that the warranty period has exactly expired, and no one will repair it for you under warranty. 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:

An 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 the initial level of a radio amateur. Usually failed capacitors are swollen, 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 network using a diode bridge. Problems with the diode bridge also happen. Diodes are very easy to check, the main function of a semiconductor diode is to pass current in one direction, but 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, usually it has a radiator for heat removal. 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. By replacing it with a soldering iron, I fixed the problem and the receiver is back in working order. I must say such a breakdown is quite rare, usually everything ends with a fuse.

A very common malfunction is a firmware rally. The firmware often flies, the evidence of this is usually the complete freezing of the receiver. In this case, "flashing" will help. I’ll tell you about another reason for the malfunction, which may occur due to poor-quality installation. Water in cable. If the outer insulation of the cable is broken, then water from atmospheric precipitation can get inside, it easily gets into the receiver through a hose, sometimes flooding all its insides. The condition of the cable must be monitored throughout the life of the device.

Access module Tricolor CAM CI + with an access card for 5050 rubles.

Tricolor TV gives 180 days of viewing the "Single" package!

Firmware for NAND Flash and SPI Flash receiver GS B210 (B211, E212, U210, U210CI, U510)

Another article is devoted to the repair of satellite receivers of models GS B210, GS B211, GS E212, GS U210, GS U210CI, GS U510 .

Despite the fact that the appearance of satellite receivers differs from each other, the receivers have one common defect, which is expressed in the “rally” of the firmware.

This defect appears when the receiver is started, when the General Satellite logo appears on the TV screen, in the absence of further loading.It is also possible to reboot the receiver cyclically.

This behavior of the receiver indicates a firmware crash, or partial or complete damage to the NAND Flash memory chip.

Do not forget that there is also a processor on the motherboard of the receivers, but let's not talk about sad things, the first thing to do is to reinstall the receiver software.

Receivers GS B210, GS B211, GS E212, GS U210, GS U210CI, GS U510 differ from each other not only in appearance, but also in their filling, including motherboards.

As it turned out, the motherboards of the receivers contain various memory chips:

Please note that in the GS B210 and GS U510 models, we also flash the SPI Flash chip with the software of the same version as the NAND Flash.

The steps for flashing memory chips for different models of receivers do not differ from each other.

To begin with, we disassemble the receiver and separate the motherboard from the case in order to avoid further deformation of the case during the dismantling of the microcircuits.

Using a soldering dryer, we dismantle NAND Flash from the motherboard receiver GS B210, GS B211, GS E212, GS U210, GS U210CI, GS U510 , as well as SPI Flash receiver GS B210, GS U510.

Next, we clean the place where the chips are installed, from flux and solder.

We perform the same actions with the removed microcircuits.

Subsequently, we need to roll "balls" onto the seats of the microcircuits, a stencil for NAND Flash and a universal stencil for SPI Flash will help us with this.

In the absence of stencils, the balls can be laid out on microchips by hand, for this it is convenient to use a toothpick.

After the balls are rolled, using the programmer, we flash the microcircuits with the firmware version that is relevant for each receiver. At the same time, you need to make sure that the memory chips are working, about which the programmer must notify you before or after the firmware.

If, after loading the software into the memory chips, the content verification is successful, we return the chips to their places on the motherboard, pre-apply a soldering flux.

In the event that one or both chips are out of order, or you do not have a programmer for NAND Flash and SPI Flash firmware, but have the skills to replace chips, we can send already flashed chips for your receiver model. You can see links to microcircuits in the text of the article.

During soldering, we try not to overheat the microcircuit and the motherboard, and also carefully monitor the chip components located next to the microcircuits.

After making sure that the installation was done well, let the board cool down, after which we check the result of the work done by connecting the receiver to the TV.

The receiver must fully boot up, exit to the channel viewing mode, or to the first installation mode.

When one of the above appears on the TV screen, we believe that the repair work on the receiver has been completed successfully and you can enjoy watching your favorite channels on your equipment.

If you do not have a programmer or soldering station at your disposal, make GS B210, GS B211, GS E212, GS U210, GS U210CI, GS U510 receiver repair You can contact our company at Kirov, Solnechny proezd, 8, t. 44-13-50 .

There was information that the new models of DTS 54 receivers are compatible and work with access cards of all the above listed receivers. Therefore, as an alternative to repair (NAND Flash firmware), a failed receiver can be replaced with a DTS 54 receiver. In this case, the access card from the DTS 54 receiver does not need to be registered.

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.

Not turning on the receiving equipment may be due to:

• the supply of food;
• Switching the TV to another connector;
• Technical work at the provider;
• Antenna problems;
• The signal conversion in the converter has stopped;
• Damage to the cable or F-connector;
• Software failure;
• Technical malfunctions in the receiver;
• The remote control does not work.

To detect a problem, the user himself can carry out simple steps that involve diagnosing equipment. Moreover, it is possible to evaluate the performance of individual links or the entire chain of signal receipt 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 a long recovery of the receiver in service centers. Having decided to open the equipment, the user must know the special designations used on the internal elements.

The meaning of the designation is safety. If this warning is applied to some parts, then when manipulating these elements, you can damage the accessories or the entire receiver itself.

The meaning of the sign is a threat. Lightning indicates danger during an autopsy or situations where operations are performed with elements. The danger is associated with harm to health or life.

The designation provides information about problems and malfunctions that may occur during work.

Testing receivers of the GS series.

A power check is always performed first:

• Is the plug plugged into the socket;
• Is the power supply correct;
• Fidelity of connecting the power supply to the network;
• Is the wire disconnected from the console, because sometimes children can accidentally remove it;
• The power switch on the rear panel must be in the "On" position.

Models of older receivers are characterized by the presence of an external power supply. The power problem may be a malfunction of this element. A Tricolor user can buy a new unit and enjoy watching TV.

On new models, the power system is located inside the case, which complicates the repair task. Power may not be supplied due to lost capacitance, the occurrence of defective sections on diode bridges. And also a long-term operated unit may fail over time. When repairing, it will be necessary to replace the capacitor, which swells. Having disassembled the receiver case, you can immediately distinguish the power supply. By disconnecting it from all the boards, a skilled craftsman will be able to replace the failed elements.

Video: how to replace the power supply on the GS8300 receiver

For a simple capacitor replacement, you will need:

• soldering iron;
• Screwdriver;
• Soldering flux;
• New capacitor.

When opening the part, the location of the element should be observed. When soldering a new capacitor, observe all limits.

Repairing the power supply will allow you to resume the flow of current. If power is supplied, the indication is activated. Saving the state of "inclusion" in the presence of indication is associated with other breakdowns.