Why is it that the previous TV was easy to burn out as soon as it thundered, and the current TV is n

From the third grade of primary school when I bought the first black and white TV at home, the TV at home has been changed for several generations, and I have a deep understanding of the lightning resistance of TV. Indeed, in the past, TVs were most afraid of lightning strikes, and there are many reasons why TVs are not afraid of lightning now. Specifically, today's TVs are not afraid of thunder,The first is the improvement of TV lightning protection technology, and the second is the strong lightning protection ability of family homes.

The reason why early TVs were afraid of lightning strikes was because the probability of being hit by lightning was relatively high. The author's first TV relied on an outdoor antenna on the roof of the house to receive the signal. Due to the relatively high installation position of the outdoor antenna, it is easy to be struck by lightning in summer.

For this reason, it is common to unplug the antenna and TV when it rains in the summer. With the upgrading of technology, whether it is TV, or home conditioners, refrigerators and other household appliances, the ability to resist lightning strikes has been greatly improved.

Now TVs have special lightning protection chips, as well as anti-surge circuits. On the other hand, nowadays TV signals are all from cable networks, and there is less chance of being struck by lightning. Residential lightning protection improves Televisions are struck by lightning, either through outdoor antennas and through the home's power grid.

Today's homes not only have professional lightning protection systems, but also grounding electrodes and professional lightning equipment.

A variety of protections to prevent electrical appliances in your home from being struck by lightning. In addition, the power grid also has a variety of lightning protection measures, and the home air switch, leakage switch, lightning resistance is very strong. It is not difficult to see that from the power grid to the residence, and then to the TV itself, the existence of a variety of lightning protection measures has improved the lightning resistance of the TV.

To put it bluntly, today's TVs are not afraid of lightning strikes, which is the result of technological progress. (** on the Internet).

His reason is that now the TV and their security system are still relatively good.

Because there is a big difference between today's TV and the previous TV.

I think it may be mainly because some lightning protection devices are now installed to prevent it.

Because the previous TVs were covered with large pots, it was easy to be hit by lightning.

This is what happens. Because the TV used in the past, it is necessary to use an outdoor antenna to receive TV signals, and the longer the outdoor antenna, the higher the degree of signal it will receive, so this leads to lightning strikes when thunder strikes. Especially when watching TV during thunder, there will be a lot of interference in the TV screen or audio track, in serious cases, lightning will hit the antenna of the TV, which will make the wire produce instantaneous high voltage, at this time, the high voltage may break through the electrical components, and then it is likely to cause **, so the thunder will break the TV.

Suggested workaround:

1. If the line of the TV is damaged due to thunder, or the motherboard is burned, then see if the TV is still within the warranty period, if it is still within the warranty period, then it is best to contact the after-sales service in time to deal with it. If the maintenance period has passed, then you must also contact a special home appliance maintenance personnel to come to check and repair.

2. When lightning damages household appliances, it is likely to cause the power supply in the home to trip, at this time, do not panic, you can first see if there are any obvious problems with other lines, and then if there is no problem, you can unplug all kinds of electrical appliances first, and then turn on the power, and then contact professionals to come to repair.

Lightning rarely shatters a TV screen, but it is possible. In most cases, lightning strikes are high-voltage currents along the antenna, network cables, and mains lines into the TV, causing damage to the circuit chip, which is manifested as the TV not turning on, not being able to connect to the Internet, and there is no fault such as signal slippage.

Related knowledge popularization: 1. When watching TV during the general thunder time, most of the interference in the screen or audio track is from the radiation energy of lightning, not the energy of induction or discharge, if it is only this kind of radiation energy that interferes with the work of the TV, it will not damage the TV. And the real disadvantage of the TV is that the lightning hits the wire line or ** line used in your home, which will cause the wire to produce an instantaneous high voltage, at this time, the high voltage may break through the electrical components, and the serious one may burn the TV picture tube, and the slight one will also burn the fuse tube.

2. But now the electrical appliances can basically be used normally when thundering, and they are not afraid of lightning strikes. If the TV hanger is not strong, if the lightning strikes too loudly, and the vibration causes the TV to fall off, then the TV screen will definitely break.

3. Now the lightning protection measures are better than before, the original buildings are generally relatively low, and basically will not be equipped with lightning rods and lightning nets, when lightning strikes, it is easy to split the circuit system, thereby causing damage to the electrical appliances used, and the lightning rod can effectively protect the ground equipment from being struck by lightning.

will break. Generally, when watching TV during lightning time, most of the interference on the screen or audio track is from the radiant energy of lightning, not the energy of induction or discharge. If it is only this kind of radiant energy that interferes with the work of the TV set, it will not cause damage to the TV set.

And the real disadvantage of the TV is that the lightning hits the wire line or ** line used in your home, which will cause the wire to produce an instantaneous high voltage, at this time, the high voltage may break through the electrical components, and the serious one may burn the TV picture tube, and the slight one will also burn the fuse tube.

Suggested Treatment:

In new buildings, there are usually surge protectors in the distribution boxes. In the event of an instantaneous overvoltage, the pressure relief channel will be automatically activated to keep the voltage fluctuation within the normal range. Therefore, it is nothing if you do not pull the plug on a thunderstorm.

However, although the surge protector is good, it is easy to have an accident in the event of a strong thunderstorm. Moreover, old communities and rural self-built houses often do not have protectors.

Thunder may not break the TV, but when thunder, lightning strikes the wires or lines used in your home, and the instantaneous voltage is tens of thousands of volts.

It is recommended not to ** the TV set when it is raining and thundering.

4. It is recommended to unplug the TV in thunderstorms and do not watch TV to avoid damage.

Yes. Here's why:

Generally, when watching TV during lightning time, most of the interference on the screen or audio track comes from the radiant energy of lightning, rather than the energy of induction or discharge. If it is only this kind of radiant energy that interferes with the work of the TV, it will not cause damage to the TV. And the real disadvantage of the TV is that the lightning hits the wire line or ** line used in your home, which will cause the wire to produce an instantaneous high voltage, at this time, the high voltage may break through the electrical components, and the serious one may burn the TV picture tube, and the slight one will also burn the fuse tube.

It doesn't have to be broken. But when thunder, if the lightning hits the wire line or ** line used in your home, the instantaneous voltage is n thousand volts. Therefore, when thunder, the correct way is to unplug the power plugs of all electrical appliances.

If you don't unplug it, you may burn it even if you turn it off. Lightning is an unknown voltage and current, and when lightning strikes electrical appliances, the harm is generally great.

If you're lucky, you'll only burst the fuse, and if you're unlucky, it's all broken and it's hard to repair. Generally, lightning entering from the power supply is common and relatively harmless, because the power supply basically has a circuit design such as high-voltage protection. But lightning from cable TV, ** line into the lightning may cause great harm, if the thunder is turned on TV, lightning will be transmitted to the terminal through some communication lines or power lines, if the voltage is too high, the voltage regulator is not used.

In severe cases, the TV picture tube will be burned, especially the socket, and even the electric main TV may be scrapped.

Television is a machine that uses electricity to disseminate optical information according to the visual persistence characteristics and visual psychology of the human eye. The basic system of a television set consists of three parts: camera, transmission and development.

Yes, the main way for lightning to damage the TV is the power cord, and the AC power cord in the family is generally introduced into the room through the overhead wire, so that the object near the overhead wire is struck by lightning a few hundred meters, and the overhead line can induce tens of thousands of volts of voltage, and enter the TV along the power line.

The general way to deal with the lightning that broke the TV completely:

1. Generally, it is necessary to check which parts are damaged first, and in the case of TV, focus on checking the internal switching circuit, motherboard capacitor, high-voltage package, picture tube and other parts, and check them one by one.

2. Generally, non-professionals are not recommended to disassemble and repair by themselves, and it is recommended to contact the after-sales service of the TV, or professional maintenance personnel, who will conduct a comprehensive inspection and maintenance of the equipment.

Because there's also a network cable connected to you.

The network cable is like a ** cable. It has nothing to do with electricity. However, it belongs to the ground wire and can guide mines.