LÝ DO TẠI SAO BẠN KHÔNG NÊN MUA NHỮNG BỘ DÀN ÂM THANH ĐỂ NGHE NHẠC.

Yes, now the need for music to entertain is essential But I see in the past time, I see many customers cry for a long time when they have missed the use of music machines from brands such as LG, Samsung or Sony Why do I say that? Because when you spend 7-8 million, you buy a set like this In many cases, there are no replacement parts For example, this music machine that I just received from a customer This is a 5.1-inch music machine from Zan If the power supply is broken, there are replacement parts and the repair is relatively simple But if the main part is broken or the power supply is broken, I see that there is only a connection with the Sony model center then there may be parts to replace But now, I see that customers and myself placing parts on Sony is relatively difficult and sometimes there is no product to sell for you to replace Now I am repairing a music machine like this I still don't know which part of this machine is broken But first I will open the power supply and plug it in and I will fix it Let's see if this music machine has no power and no power supply If the power supply is broken, the repair is relatively simple But if the main part is broken, the repair is relatively difficult Why? Because there are no replacement parts So in today's video, I have just repaired and I want to advise users If you have a music machine If you want to listen to music You should not buy a music machine that is too complicated Why? Because there are no parts to replace Because you have to spend millions of dollars to buy The phenomenon of this music machine is that there is no power I have plugged in the power supply Now I will go to the repair shop To know why this circuit is out of power First you will check the output voltage Step 1 I will check the voltage of the circuit Is the voltage drop? To know if the power is in the machine The voltage is very good The output voltage is very good Now I will check the voltage and repair it To see if the circuit is broken Before repairing, I will plug in the power supply I will determine which power supply is the first power supply and which power supply is the second power supply If you determine the first power supply, you will find it The first power supply is 12V It's here This IC is the first power supply Now I will plug in the power supply I will turn on the fan to 200V Or 12V You can turn on the fan to 20V To measure the power supply See if it has power It is losing power This phenomenon is caused by a lot of ICs I suspect this IC is broken Normally, the fault of these devices The problem is the power loss of the first power supply I think it's a big deal Now to verify I will pull out the IC If the IC pin is on fire You need to replace the new IC Then you can use the old one Otherwise, this power supply will not run In general, it is Let's see I will turn on the fan This power supply uses an IC called ICSTR STRI6763 I will zoom in This IC pin Power pin See I observed that it was hit by 2 pins That's why 100% of this IC is broken Now you need to buy another IC Then the power supply of the customer will work normally It's very simple If you fix it like me If you fix it and it doesn't work You have to take it off and look at it See, it's broken Now I will replace the IC The power supply of the customer will work normally Now I will replace the IC The power supply of the customer will work normally Now I will replace the IC The power supply of the customer will work normally But there is a problem The power supply of the customer will work only when tuned How in this case The old 5.1 still does not work So how do I fix it? At the beginning of the video, I advised you not to buy products from Sony, Samsung or Panasonic Because the old 5.1 does not have many replacements So it is very difficult when the product is broken The only thing I checked was that it was broken on this board And on this board, it is broken anywhere For example, IC But there is no power supply for this processor So this board does not have 7 boards So it is very difficult for me to repair And you bring the company to replace This board is original, but I haven't touched anything And you bring the company to replace I don't know if there is And the price will definitely be very high If there is a replacement Because outside You will not be able to repair small components like this But usually you know You will have to replace the whole board And the cost of replacing with this old set If you buy new It will cost about 7-10 million The cost of replacing the whole board It is relatively low So in today's video, I want to advise you Although my video repair is not successful Although I know it is broken And there is a power supply But my bad luck It is broken on this main board So I give up Give up And have to find Original components to replace And the cost of repair For you For everyone The price will be very high A short video for you to refer Because My experience Make videos like this How to make it most realistic You see my video You often share These videos for everyone to know And now goodbye See you in the next video