How to repair the power supply of the TV, what should I do if the power supply of the TV is broken?

Find a professional maintenance worker.

1. If the power strip of the TV at home is broken, if the problem is not big, you can try to repair it yourself. Because it is usually the case that one part of the power strip fails, and it is only necessary to find the problem and replace the broken part in time.

2、If the entire power strip of the TV needs to be replaced,It's also very simple。 The first thing to do before replacing the power strip is to judge the quality of the TV power strip,If the removed power strip has obvious traces of burnout,Then this power strip must be bad,In addition, you can use a multimeter to detect the input and output voltage of the power strip,Compare the obtained value with the normal voltage stated in the TV manual to judge whether the power strip is damaged。 Then there is the replacement of the power board, it is best to use the power board of the same model of the original manufacturer to replace, if you can't find it, you can also try the general-purpose power board.

3. Installing the power strip is very simple, since it is disassembled by yourself, then assemble it back according to the steps of disassembly. Finally, adjust the power strip after replacing it. Test the voltage with a digital multimeter, find the adjustable resistor, each adjustable resistor corresponds to a set of output voltage, rotate the adjustable resistor to adjust the voltage, adjust it to the voltage value marked on the manual, and make the voltage value on the multimeter consistent with the manual.

If the power supply part of the TV is broken, you should replace a power module with the following operations: 1. Turn on the TV and remove the broken power module, be careful not to touch the internal high-voltage circuit of the TV, and pay attention to all connection lines and interfaces when removing the old module. 2、According to the model and specifications of the TV power module, buy the same power module back。

3、Press the mark made when removing it, connect the new power module to the TV one by one, corresponding to the acceptance capacity。 4、Confirm that there is no wrong connection,When connecting the reverse line,Try powering on,If you find something wrong, cut off the power immediately,If everything is normal,Assemble the TV shell,It's all OK。

If the power supply of the TV is broken, you can go to the store to repair it, in fact, it doesn't cost much, but I think you still have to fix it, otherwise you won't be able to watch TV.

There are many ways to deal with a broken TV: you can just buy a new TV. You can also spend money to find a master or after-sales maintenance. Of course, you can just stop watching TV.

Confirm that the power supply of the TV is broken,Then you can only move to the home appliance repair shop and let the maintenance worker check it for you,Replace a power supply with the same model parameters and you can use it。 If you have strong hands-on ability, you can disassemble it by yourself and replace it yourself.

If the power supply of the TV is broken, contact the seller directly during the warranty period, if it is a miscellaneous machine without a warranty period, only go to a professional repair shop to check and repair.

One of the two options is to replace the power module and the power strip directly.

Second, according to the working principle of the switching power supply, it is OK to check the source of the problem one by one, and finally replace it.

If the power supply of the TV is broken, repair it, buy a new TV if you don't want to repair it, and don't want to repair it or buy it.

The general solution to the broken TV: 1. Check the fault of the TV first, that is, what are the manifestations of the fault; 2. Preliminary judgment of faulty lines or parts according to the fault performance of the TV;

3. Use special tools such as multimeters to detect and troubleshoot suspected faulty circuits and parts one by one; 4. After determining the faulty line and parts, the line is disconnected and reconnected, and the parts are replaced with the parts of the corresponding model; 5. Generally, after the repair and replacement of faulty lines or parts, the TV can be restored to normal; However, because repairing the TV requires professional knowledge and professional tools, it is recommended that ordinary users do not disassemble and repair the TV by themselves, and should contact the after-sales service of the TV in time to conduct a comprehensive inspection and warranty of the TV.

Questions. It's just that I have a poverty alleviation TV here that is broken, how to fix it.

You'd better find an after-sales service for repairs.

Was there a connection when you bought the TV**?

Questions. There is just no signal.

The old man at home doesn't know.

Is it an IPTV?

Check if the set-top box is powered on. If the socket switch on the set-top box is not turned on so that the set-top box cannot work normally, then the set-top box will definitely not have a signal; If it is a digital TV set-top box, it may be that there is no money in the card of the set-top box, if this situation is excluded, then it means that the digital TV set-top box has been damaged, and then you need to find after-sales service.

There is no signal, and it is not a problem with the set-top box when you let the elderly take a look.

Questions. I just watched it and there was no problem.

That's the networking thing.

You go to the TV fixer to see what's going on.

Because I can't go to your house to see what's going on

The power supply of the TV is very complicated, except for the fuse model to buy, other faults to find professionals to repair. Sometimes the insurance tube is broken, and there will be other reasons, so the insurance will be burned after replacing it, so find a professional repair.

Send it outside to repair, what else can you do, you can't fix it anyway.

1. Magnetization of the TV.

Causes of magnetization of the TV: The TV has been subjected to severe vibration, the degaussing resistance inside the TV is damaged, the magnetization is affected by the magnetic objects next to it, and the deflection coil or color pure magnetic ring in the TV is displaced.

Magnetization of the TV solution: After the TV is subjected to severe vibration, there will be more situations, and it is not certain whether it is the damage of the components or human factors. If the picture can be displayed, except for the halo phenomenon of the screen, everything is normal, then it can be solved with a professional degausser.

If it can't be solved, it is generally that the degaussing element inside is damaged, and the component should be replaced. Be careful not to place magnetic objects next to the TV, as this will have a big impact on the TV. There is also a color system that has not been adjusted well, so you can adjust it yourself.

2. There is no electricity on the whole TV.

The reason for the lack of power of the whole machine: This is a very simple fault, which is mainly caused by the internal power supply and the external power supply of the TV. Generally, the failure rate of the external power supply will be higher.

What is more likely to be damaged are some small components in the machine, which are relatively small, such as: fuses, rectifier bridges, power switches, etc. Another is the failure of the driver board, which causes the whole machine to have no power.

The whole machine has no power to solve: if it is the cause of the power part, it is relatively simple to overhaul, and the problem can be solved after replacing these parts. If it is a fault of the driver board, it is a little more complicated, to check whether the relevant voltage of the power supply is normal, the failure of the driver board will cause the two groups of power supplies to have no output voltage, as long as the voltage is problematic, the driver board must be a problem.

3. There is sound but no image.

Reasons for sound and no picture: The first suspicion is that there is a problem with the high-frequency head, which will directly lead to this situation. There is also the color system is not adjusted to the pair, and the brightness is not adjusted to come out, and the color system is checked by adjusting the remote control.

After the high-frequency head is damaged, there is no image input, so there is no image display on the TV screen, check whether the relevant parameters of the high-frequency head are normal, and then replace. Then there is the adjustment of the color system of the TV, which is also one of the reasons, but this is usually relatively rare.

When the TV is turned off, you can see the light of the TV at the moment of turning it off, and there is a little discharge sound, then it can be concluded that the picture tube of the TV is normal.

How do you know if it's a power issue?

If it is plugged in and does not respond, there are several possibilities, it may be a problem with the wiring or fuse or related circuits.

You can use the table to exclude it, generally there is no repair value, just replace the bad parts.

Summary. My dear, how to repair the TV first to see if it is burned out, if it is not burned out, and it is still new. You can choose to find an after-sales service address,Send the TV for repairIf the TV has been used for a long time,Beyond the maintenance period,You can go to someone to repair。

But if you find that the TV has been burned out, don't be reluctant, just replace it with a new one, it's more cost-effective than having to fix it.

My dear, how to repair the TV first to see if it is burned out, if it is not burned out, and it is still new. You can choose to find an after-sales service address,Send the lead TV to be repairedIf the TV has been used for a long time,Beyond the maintenance period,You can go to someone to repair。 But if you find that the TV has been burned out, you don't have to be reluctant to sing the socks, just replace it with a new one, compared to having to repair it, it's more cost-effective.

Dear,How to repair the TV or according to what fault occurs when watching TV,If it is within the warranty period, you can directly contact the TV after-sales service。

The TV is skyworth, and the child lock automatically turns off and can't be turned on.

Dear, first of all, we need to confirm that what you are asking is the problem that the child lock automatically shuts down and cannot be turned on before the letter appears on the skyworth TV. You can first try to reset the child lock:1

First, press and hold"button for three seconds to pop up the menu. 2.with"Right arrow keys to identify submenus in the menu:

Security Settings Change Password3Enter the old password and confirm Slip 4Change your password and follow the prompts to complete the action.

Once the child lock has been reset, you can turn it on. If the above methods can't solve the problem that the child lock automatically shuts down and can't turn on, you can regret and restore the factory settings:1

When plugging in the RF cable, press and hold on the remote"features"Key 3 seconds 2From the menu, use the up and down keys on the remote control to select Advanced Settings 3From the menu, use the up and down keys on the remote control to select Factory Reset4

When the appearance of OK Factory Reset? When prompted, use the 5 ( ) button on the remote control to select OK to restore the factory settings, you can reinstall the new child lock for normal use.

The beautiful sister can't turn on the machine, and she can't turn on the machine

I can't press the factory reset either.

It's just that there is no reaction at all, right?

If there is no response at all, first, you can buy a universal remote control to open a book, and secondly, you can call after-sales **: 9 loss 5 1 0 5 5 5, contact the after-sales specialist to deal with it.

Give the money back.

The LCD TV power strip is an important part of the TV, and if it fails, it will cause the TV to not work properly. Here are the steps for LCD TV power strip repair:

1.Check that the power cord and plug are connected properly to make sure the power cord is not damaged.

2.Check whether the capacitors, resistors, diodes and other components on the power strip are normal, and if there is damage, they need to be replaced.

3.Check whether the switching power supply on the power strip is normal, and if there is a failure, it needs to be replaced.

4.Check the fuse on the power strip for damage, if it is damaged, it needs to be replaced.

5.Check whether the circuit connection on the power supply board is normal, and if there is any looseness, it needs to be reconnected.

6.If none of the above steps resolve the issue, you may need to replace the entire power strip.

It should be noted that the maintenance of LCD TV power strip requires certain knowledge and skills of electronic maintenance, if you are not familiar with electronic maintenance, it is recommended to seek the help of professional maintenance personnel. At the same time, in order to avoid the occurrence of power strip failure, pay attention to protect the power strip when using the TV to avoid excessive use and voltage fluctuations.

First of all, before repairing the TV, we need to understand some basic TV maintenance knowledge, such as there are usually different TV failures, such as unable to turn on, black screen, unable to enter the menu, etc. Here we will focus on the maintenance methods in the case of general faults that cannot be turned on or there is no display after booting.

1.Power failure.

Televisions, like other appliances, need a stable power supply to work properly. If your TV won't turn on or doesn't show up after turning it on, it's most likely a power failure. Check the cord and plug for damage, and try changing the socket or using the TV in another room.

If this still does not solve the problem, then the power strip is likely to need to be replaced or repaired, and professional technicians need to be asked to deal with it.

2.Faulty signal lines.

Another possible cause of your TV not working is a faulty signal cable, which could mean a problem connecting your TV to a set-top box, *****, or other device. You can try to replug the signal cable or try to replace the signal cable to resolve the problem.

3.Displays a faulty driver board.

If there is no problem with both the power supply and the signal cables, then the problem may be with the display driver board. In this case, a professional technician is required to inspect and repair the TV in order to determine whether the TV should be repaired or the entire display driver board needs to be replaced.

In short, if there is a TV failure, we should first do a basic check, try to check whether the power cord, signal cable and other equipment are complete, whether the voice assistant and so on are set up properly, if these are not problematic, we need to consider replacing or repairing some important parts. However, in these operation processes, we need to be very careful to protect the closed TV, do not easily open the main body of the TV, which is easy to cause damage, and even have an impact on personal safety, so for some parts with high technical requirements, it is recommended to ask professional and technical personnel to deal with them. Hail key.