In detail: do-it-yourself repair of the gs u510 receiver from a real master for the site my.housecope.com.
Receiver GS U510. Does not turn on.
Voltages: L7 1.31V L6 5.18V L2 3.39V L32 1.52V
What could be the problem? Thanks in advance!
Can you tell me where to look? There is no scheme. Or the principle of how to look for a place if there is no scheme.
The motherboard got free. I'm dripping. I'm trying to figure out the repair technology.
Mysnik, or maybe give it to a specialist so that you don't ruin it yourself!
Mysnik, or maybe give it to a specialist so that you don't ruin it yourself!
Yes, that's the problem, that the datasheet can be found on the percent. I can not. I think it is not on the Internet.
For a specialist !? Nope. I want to figure it out myself. If I ditch - figs with her. But I would like to understand.
Hello everyone today at the repair the tricolor GS U510 receiver with a malfunction does not turn on the image is missing. As always, the client said that the receiver broke down after it was turned off in the evening, and in the morning it did not turn on anymore, the client also noticed that he was not working steadily before, periodically the image crumbled into squares. Well, what are we going to see what we have with the patient. After opening, I measured all the supply voltages and wrote them down on paper so as to perpetuate, so to speak, who might be useful in the future for comparison.
Let's start with the fuse and then on the microcircuits.
Another very important thing is to check the power supply, since on all modern receivers the power supply is external, they very often fail and the receiver itself may even be working, and the power supply can cause malfunctions from image scattering to the complete inoperability of the receiver, so the first check the integrity of the electrolytic capacitors, they may be swollen and the power supply will not work normally. In our case, the power supply is working and after we have checked all the supply voltages, we need to flash the receiver, since the software very often does not work correctly, which is why the receiver will not turn on. In this receiver, you need to flash two microcircuits: SPI Flash 25Q32 and Nand Flash MT29F1G08ABADAH4, they are all in a BGA package and you can't just flash them.
Video (click to play).
First of all, we flash SPI Flash 25Q32 because I have a Zif socket for it and it's easier to work with it.
We clean the microcircuit from old balls using copper braid and flux.
We insert the microcircuit into the Zif socket BGA24 according to the key and close the lid. The design of the Zif socket is made in such a way that when the lid is closed, the needles are raised under the microcircuit for contact with the dimes of the microcircuit.
I use the RT809F programmer for SPI Flash 25Q32 firmware, but you can also use another programmer with a corresponding socket.
I didn’t take pictures using the Nand Flash firmware, I have them, and there’s nothing interesting, the whole process is reduced to pressing a couple of buttons. After flashing both microcircuits, we roll new balls all together and solder them in place. And do not forget to wash off the remains of the flux, well, for aesthetics.
We check the receiver for inclusion and assemble in the reverse order. Repair price 1500 rubles
Zif socket BGA 24 Zif socket adapter for Tsop 48 bga63
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) 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 us consider such a repair using the example of another GS-8300 N receiver from the Tricolor company.I must say that the device is not of the best quality, and the money that Tricolor takes for it, of course, is not worth 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.
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. 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 will say 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, it easily, like a hose, gets into the receiver, sometimes flooding all of its insides. The condition of the cable must be monitored throughout the entire service life of the device.
I have exactly the same set-top box, it does not switch from the remote control (the remote control is working properly). does not show volume indicator when (+) or (-) sound. I don’t know this method will help. What is the volume of the flash drive (or without a difference 4-16 GB reads everything)
reads everything (I have LV, Kingston, and some other)
and even after you inserted the USB flash drive, you need to confirm that you need to wait when connecting (but it does not respond to the remote control)
Good day! Such a question is, are there any other goodies, secrets on the 510 receiver via the Internet, for example, I connected the store to no good, but I can only prosiorate.For me, this is the most successful and stable receiver of all that they are now releasing Prots and the technology alone, well, maybe somewhere doped, and so everything is the same only now flash drives are soldered into new models of licks to rip off more attendants. And so everything is the same, nothing is new, what is 510, which is now only more expensive from the new ones on the market and that's it. Thank you if you take the time to answer. I liked your channel, I will watch your videos in the future and do it often very interesting.
How did you manage to connect it via the Internet? There is no wifi, no ethernet
triod
AleXKV
triod
AleXKV
Certainly . and more than once. I myself SC - we change the boards under warranty, after warranty - only a component
Added by (25/12/2015, 11:47:45) ——————————————— Certainly . and more than once. I myself SC - we change the boards under warranty, after warranty - only a component
Added by (25/12/2015, 11:48:50) ——————————————— Certainly . and more than once. I myself SC - we change the boards under warranty, after warranty - only a component
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.
Failure to turn on the receiving equipment may be due to:
Food intake;
Switching the TV to a different connector;
Provider technical work;
Antenna problems;
Signal conversion in the converter has stopped;
Damage to the cable or F-connector;
Software malfunction;
Technical malfunctions in the receiver;
The remote control does not work.
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.
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.
The designation provides information about problems and malfunctions that may appear during work.
Testing of receivers of the GS series.
A power check is always performed first:
Is the plug plugged into the outlet;
Is the power supply defective;
The correctness of the connection of the power supply to the network;
Is the wire disconnected from the set-top box, because sometimes children can accidentally take it out;
The rear panel power switch must be in the on position.
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.
On newer models, the power supply system is located inside the case, which complicates the task of repairing. Power may not be supplied due to lost capacitance, the appearance of defective areas on diode bridges. And also a unit that has been in operation for a long time can fail over time. During repairs, you will need to replace the capacitor, which is swollen. 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 replacement of the capacitor you will need:
Soldering iron;
Screwdriver;
Soldering flux;
New capacitor.
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 an indication is associated with other breakdowns.
triod
