The TV is black, and the TV screen is slowly black

When there is a failure, it is important to learn how to judge the cause of the failure, so if your TV has a black screen, then there are the following situations that may cause the TV to have a black screen, one is the failure of the TV itself, the second is the failure of the set-top box added, and the third is the failure of the ** line connecting the TV and the set-top box. For these three situations,You have to exclude them one by one,For example,You can first disconnect the item box and**cable from the TV,Turn on the TV separately,Check whether the TV has a signal,Under normal circumstances,Even if the TV has no external signal,At least it will also appear blue screen display or snowflake screen display,It shows no signal reception state。 If the screen is still black after doing this, it is a fault of the TV itself and can only be sent for repair.

If the TV shows no signal reception, it is not the fault of the TV itself, it may be a problem with the set-top box or the first line, and then you will check the set-top box and the first line, for example, if you have a *** machine or VCD disc player or the like, replace the set-top box and connect it to the disc player, which is done to test the fault of the set-top box and the ** line. If the TV can work after connecting the disc player,That's the fault of the set-top box,And so on,Further eliminate the problem of the **line,The troubleshooting idea is roughly like this,You try it。

Can it solve your problem?

In the case of the TV screen slowly blacking,First of all, you need to check whether the TV itself is faulty,The failure of the screen will lead to a black screen; The set-top box also needs to be checked, and if there is a failure, it will also cause the screen to slowly go black; The ** cable connecting the TV and the set-top box also needs to be checked,There is a problem with signal reception,The TV will also appear slowly black.

Common reasons and ways to check the TV screen slowly going black:

1、The TV itself is faulty:The user can first put the set-top box,** base slow line and TV disconnection,Turn on the TV separately,Observe whether the TV receives the signal,Under normal circumstances, the TV has no external signal, there will be a blue screen display,There are also snowflakes showing no signal reception state,You can judge whether the TV is faulty。

2. Set-top box failure: Users can use *** machine or VCD disk drive or the like to test, replace the set-top box and connect it to the disk machine, if the TV can work normally after connecting the disk machine, there is no black screen in the fight model, that is, the set-top box has no problem, on the contrary, the set-top box is faulty.

3. Failure of the line: The set-top box and the TV are working normally, the user can connect the line to other set-top boxes and TVs, and then turn on the TV.

Then there are several situations that may cause the TV to go black:

First, the TV itself is faulty, and second, the set-top box is faulty.

1. The black screen of the TV is a fault phenomenon of the TV, and it is also the most common, which is manifested as no image. There are generally two main situations of TV black screen; One is that there is no image, there is sound, and the TV screen is not lit; The other is that there is no image, no sound, and the TV screen is bright.

3. In addition, there is a situation where there is only one horizontal bright line on the screen; There are only red, green, and blue monochromes on the screen; There is only one vertical bright line on the screen; MITV has no image; There is a flashback line on the screen; There is no image in the part of the screen, etc.; If this situation occurs, it should be caused by the hardware problem of the LCD TV,It may be caused by the abnormal setting of the power supply circuit,There is a problem with the circuit driving the backlight,The circuit controlling the high-voltage switch on the AD board is faulty,The backlight template of the screen is faulty,Caused by the protection state of load imbalance,It is recommended to find professional personnel for maintenance。

Hope it helps!

1. Memory problems: Under normal circumstances, when the mobile phone stores too many things, the running speed will be too slow, and when the memory occupancy rate of the mobile phone can reach more than 80%, it may crash.

2. Contact problem: that is, the contact of the mobile phone screen is loose. This is not a big problem, but it can directly cause the phone to go black, it is difficult to find and it has to go through a lot of tests to find, usually caused by the phone being bumped.

3. Battery problem: Many mobile phones have a black screen after using it for a long time, which is very common, the main reason is that the effective use time of the mobile phone battery is 1 year, and excessive use leads to the aging of the mobile phone's battery and insufficient voltage.

4. Conflict problem: There are many applications for smartphones now, but there are some software that are born with conflicts, which can also lead to a black screen, so the black screen after installing a lot of software is basically this reason.

5. Flashing problem: Many people are keen on flashing the machine and using a better system, in fact, some system mobile phones are not very supportive, and some are incomplete in flashing, which leads to a black screen when using it in the future.

What's going on with a black screen on a TV.

It may be that there is a problem with a certain program, you can go to the brand professional repair shop for consultation, and they will give you a satisfactory answer.

If the standby light is not filial, it is often the in-flight safety that is broken. If there is a waiting lamp but the limb cannot be turned on, there is a problem with the remote control or the receiver in the machine. If there is sound, but there is no light and no image, there is a coincidental accompaniment, ** channel or picture tube circuit failure.

Hurry up and get it repaired or buy a new one. The black screen of the TV is generally burned by the picture tube.

Hello,Very high Chaoxing answers for you,The possible reasons for the black frequency of the TV are as follows:1The power of the TV is turned on normally, and the indicator light is flashing, but the TV has a black screen, then the backlight plate of the TV will not light up, that is, the high-voltage board is faulty.

The reason for this is simple, the fuse burns the macro core slips or there is a problem with the switch chip. 2.Power supply problem At this time, you need to carefully check whether the power circuit of the TV is faulty, usually, the panel buttons will not respond, and the TV indicator light will not be lit.

At this time, you need to use the meter to detect whether the voltage of the power supply is too low, and at the same time, you should also detect the input problem of the power supply circuit, and check whether the voltage of 12V has been converted to 5V voltage, because this is also the more common reason for the black screen of the TV. 3.Component failure In addition, there is another very important reason for the black screen of the TV, that is, the TV component is faulty, such as:

Caused by air welding of high-voltage inverter or control transistor. Solution: At this time, the problematic components need to be eliminated one by one, and the faulty components need to be replaced, so that the voltage can be restored to normal.

This kind of failure is not uncommon, usually when the fuse is burned or the regulator chip fails, and we only need to replace the relevant parts.

Hello 1, but Zheng or Companion can be the power plug of the TV is loose, the power outage at home, the power switch of the TV shouts stupid and pops up to turn off the power of the TV; 2. The user mistakenly pressed the power button of the remote control, turned off the screen of the TV, and the TV was in standby mode and the screen went black; 3. The TV detects that there is no signal input and starts the black screen protection; 4. There is a problem with the circuit that drives the backlight of the TV. Suggested solution: 1. The user can press the power button to solve the problem of the black screen of the TV; 2. Check whether the power switch of the TV pops up one by one, turns off the power of the TV, and repairs it; 3. Generally speaking, it is judged that the main board switch circuit or other components of the TV have failed, screen failure and other factors, and the black screen caused by hardware failure, it is recommended to contact the after-sales service of the TV for comprehensive testing, warranty and maintenance of the TV; 4. You can check whether the signal input connection of the TV is unblocked, and then switch the mode one by one by pressing the signal source key of the TV remote control until it is restored to its original state; 5. If the TV screen at home is black, please do not disassemble it yourself, in case you hurt yourself or cause irreparable damage to the TV.