Does the TV have a vertical bar? There is a vertical line in the middle of the TV

When you find that there is a vertical black bar on the TV screen, you should check how much the vertical black bar on the TV screen occupies the whole TV,If there is a red line and two green lines on the morning side of the black bar,There are 14COF lines in the driver,According to the display principle of PDP,The preliminary judgment is that a COF line driven by the logic board or address is invalid。 Further experiments, disconnect the LVDS cable, the fault phenomenon is that the whole screen turns black, but there is still a red line and two green lines corresponding to the original black bar. It is now certain that a COF line driven by a logic board or address has failed.

Carefully disassemble the COF plug corresponding to the black bar, there is no abnormality, reinstall the COF cable, and the fault disappears. In order to ensure the feasibility of repair, the same fault still occurs after continuous observation for one day. Replacing the logic board is invalid, troubleshooting after replacing the entire screen, COF is the address of the PDP screen to drive the flexible cable, which contains the driver IC, COF and the screen are an inseparable whole, so it can only be repaired by replacing the entire screen.

Measure whether the clock output of the motherboard is normal, and check whether the motherboard signal R g B is input to the main chip part of the line (whether there is false soldering, short circuit, capacitor resistance and whether there is an error value.

Check whether there is a false soldering or short circuit in the connection socket part of the connection socket output to the output of the motherboard signal output to the screen (IC pins, row resistors and sockets, double row pins, pay special attention to the flat socket, and replace the screen or the general driver board if necessary.

The white screen phenomenon of the TV indicates that the backlight board can work normally,First judge whether the motherboard can work normally,You can press the power switch to see if the indicator light responds,If the indicator can change color,It means that the motherboard is working normally,Check whether the connection cable of the motherboard signal output to the screen is in poor contact(You can replace the connection cable or screen)。 Check whether the voltage of each working point of the motherboard is normal, especially the power supply voltage of the screen.

Check the field signal and clock signal (from input to output) with an oscilloscope, and replace it with a general-purpose board to write a program.

1. If the position of the vertical on the TV screen is uncertain, it may be that there is a problem with the input of the signal source of the TV or a problem with the program source; At this time, you should check whether the connection line of the signal source is in poor contact, and if necessary, you can reconnect the connection line to test it; If it is a problem with the program source, you can directly change it to other channels.

2. If the position of the vertical channel on the TV screen is fixed, it may be caused by the failure of the TV screen or screen cable and logic board, which needs to be solved by contacting the after-sales service of the TV for comprehensive inspection and maintenance of the TV.

It doesn't matter, it's just that the radio waves are unstable and dry.

Worried. caused, don't worry too much.

Is there any problem after restarting, is it a problem with the screen, go to an electrical repair shop to see.

Reasons for the occurrence and how to fix it:

1. The problem of the current program source of the TV. The program source can be switched to other program channels**or changed to a different disc**.

2. The problem of the signal source input of the TV. You can check the connection line between the TV and the cable or set-top box, *** machine, etc., whether there is looseness or the quality of the cable leads to the appearance of vertical wires, you can change the connection line to reconnect and fix it.

3. If the vertical line appears in a fixed position, you can rule out the problem of the signal source and the program source. It can basically be judged to be caused by a problem with the hardware of the TV,Generally, the LCD panel is faulty,It is recommended to find maintenance personnel to come to the door to repair and determine the cause of the failure,Then replace the parts to solve the problem。

Caring for your LCD TV:

Dustproof, moisture-proof, heat-proof protection. In order to achieve this "three defenses", smart TV is a product of high technology. While it can work in harsh environments, it's definitely not the best environment.

You can buy a TV cover without using the TV for a long time. If electronic components are covered in dust, they will not easily dissipate heat, and the heat will cause accelerated oxidation of metal components. If you take a long time, you'll have bad contacts.

If the environment is humid, electronic components can easily rust and corrode, leading to component damage. In winter, electric kettles, electric heaters and other objects should not be placed next to the TV, and should be kept away from electrical appliances.

Normal warranty, don't worry anymore.

Summary. Hello, dear, very happy to answer for you! Here's the answer, check it out!

There are three main reasons for the appearance of two vertical bars on the TV screen: 1. Line problems: the line may be damaged, and the damaged line will interrupt the TV signal, at this time, one or more horizontal and vertical bars will appear on the screen; 2. The display is damaged

If the display is damaged, especially the circuit board. When the circuit board loses signal, it will also cause horizontal and vertical bars to appear on the screen; 3、Self-setting problem:If the TV is set up by mistake,There may also be two horizontal and vertical bars,At this time, you only need to reset the settings。

In either case, there are two vertical bars, the most basic solution is to check whether the network cable and TV are plugged in correctly, and reconnect it again to solve the general line problem. If the network cable and TV settings are inserted correctly,There are still two vertical bars,Then you can consider the problem of your own settings,Modify some of the TV's settings back to the default settings to solve the problem。 Finally, if the settings are fine, the screen still appears horizontal and vertical bars, indicating that there may be a problem with the TV monitor, which needs to be removed for inspection, and only by replacing the new display board can the problem of two vertical bars on the TV be solved.

Hello, dear, very happy to answer for you! Here's the answer, check it out! There are three main reasons why two vertical bars appear on the TV screen:

1. Line problems: the line may be damaged, and the damaged line will interrupt the TV signal, at this time, one or more horizontal and vertical bars will appear on the screen; 2. Damaged display: If the display is damaged, especially the circuit board is damaged.

When the circuit board loses signal, it will also cause horizontal and vertical bars to appear on the screen; 3、Self-setting problem:If the TV is set up by mistake,Two horizontal and vertical bars may also appear,At this time, you only need to reset the settings without loss。 No matter what the situation is, there are two vertical bars, and the most basic solution is to check whether the network cable and TV are plugged in correctly, and reconnect it again to solve the general line problem.

If the network cable and TV settings are inserted correctly,There are still two vertical bars,Then you can consider the problem of your own settings,Modify some of the TV's settings back to the default settings to solve the problem。 Finally, if the settings are fine, the screen still appears horizontal and vertical bars, indicating that there may be a problem with the TV monitor, which needs to be removed for inspection, and only by replacing the new display board can the problem of two vertical bars on the TV be solved. Your questions have been answered!

Asks like this, and asks big questions on the display board.

Your situation is basically caused by the failure of the cable connecting the display screen, you can repair it.

How much can it cost to repair.

If it's not a big problem, just overhaul about 100.

If it is not repaired now, will it affect the TV?

If you don't fix it, it will only affect your ** experience, and there is no problem with the rest.

Will also develop no.

This won't do, but it won't be serious if you don't bump it.

1. Problems: 1. The appearance of vertical streaks can be guessed that Zheng Neng is due to the connection problem of the signal input end of the TFT panel and Zheng Zheng's static electricity.

2. The line formed by static electricity is usually a single one, which does not look so thick. The thick wire is usually caused by a short circuit, and the input of the TFT internal short circuit signal is short-circuited.

3. The use environment is too humid, which will have a certain impact on the line at the input end and produce line defects.

4. The signal of the TV is interfered with and causes horizontal streaks, such as the use of high-power electrical appliances that cause voltage instability.

5. It may be caused by the failure of the TV hardware, mainly due to the failure of the screen cable or poor contact, the failure of the display screen, and the failure of the internal circuit.

2. Solution:

1. Just find out the source of interference and eliminate it.

2. You can first check whether there are any new high-power electrical products near the TV, and then see if the vertical stripes of the TV have disappeared after turning them off.

3. It is necessary to contact the after-sales service of the TV for maintenance to solve the problem.

4. If the connecting line is loose, fix it to be able to reconnect with another connecting cable.

Extended Materials. Maintenance Tips:

1. Try not to let the LCD TV work for a long time or continue to display the same picture. Because the screen of the LCD TV is displayed by LCD pixels to form a picture, the LCD TV has been working for a long time.

2. Avoid impacting the screen. Because LCD screens are fragile and to avoid strong shocks and vibrations, users remind children not to practice impactful activities in front of the TV.

3. Pay attention to keeping the TV dry. Televisions are very high-tech, and although they can work in a humid environment, they can only work"Work as usual", and cannot say yes"Works normally"。Moisture can be very damaging to televisions.

If a vertical bar appears on your TV screen, it could be one of the following reasons:

1.Signal issues: If you're using cable or satellite TV, you might have signal issues that cause vertical bars to appear on your screen. You can try plugging the TV or satellite cable back in, or contact your TV service provider to resolve the issue.

2.Connectivity issues: If you're using an external device, such as a ***** maker or a game console, to connect to your TV, you may have connectivity issues that cause vertical bars to appear on your screen. You can try plugging and unplugging the cable again, or replacing it.

3.Screen failure: If a vertical bar appears on the TV screen, it may be that the screen itself is malfunctioning. In this case, you'll need to contact your TV manufacturer or repairer to repair or replace the screen.

4.Other issues: Other issues, such as incorrect TV settings or TV software issues, can also cause vertical bars to appear on the screen. You can try resetting your TV settings or updating your TV software to fix the problem.

Hello dear The situation of vertical bars on the TV screen may be caused by the following factors:1Pixel glitch:

If some pixels are malfunctioning, they will cause different colors or black lines to appear on the screen stool. 2.Screen magnetization:

After a long period of TV time, the screen may become magnetized, causing vertical ribbons to appear on the screen. 3.Loose cable:

If the cable between your TV and other devices is loose or detached, it will cause one or more black lines to appear on the screen. 4.Panel Damage:

If the TV panel is damaged (e.g. bumps, drops, etc.), it can also cause black lines to appear on the screen. For the problem of vertical bars on TV,You can try to replug and unplug the connecting cable,Demagnetization of the screen and other methods。 If the problem persists, it is recommended to contact the TV finger limb after-sales repair service to let a professional technician carry out the inspection and repair.

Summary. The problem with vertical bars can be caused by the following reasons:1

Bad lines on the TV screen or problems with the TV chip. 2.Physical damage to the TV screen such as pixels or scratches.

3.Signal input equipment problems, such as poor wires, virtual connectors, unstable signal sources, etc. If it is a defective TV screen line or a problem with the TV chip, it may need to be repaired or replaced by a professional; If the vertical bar is caused by physical damage, the screen needs to be replaced; If the problem is with the signal input device, you can try replacing the high-quality cable or checking whether the connection port is secure, and adjusting the output signal of the signal source to see if the problem can be solved.

The problem with vertical bars can be caused by the following reasons:1Bad lines on the TV screen or problems with the TV chip.

Talk about the banquet 2Physical damage to the TV screen such as pixels or scratches. 3.

Signal input equipment problems, such as poor wires, virtual connection of silver-containing connectors, unstable signal of the signal source, etc. If it is a defective TV screen line or a problem with the TV chip, it may need to be repaired or replaced by a professional; If the vertical bar is caused by physical damage, the screen needs to be replaced; If the problem is with the signal input device, you can try replacing the high-quality cable or checking whether the connection port is secure, and adjusting the output signal of the signal source to see if the problem can be solved.

Is it caused by external damage?

Will it spread.

If it doesn't spread, I won't fix it.

Yes. In general, vertical marks on the TV screen do not spread. Vertical marks are usually caused by physical damage to the surface of the screen that often causes the pixels or light sources under the gray background below the screen to get out of control.

These pixels or light sources only have an effect on the pixels or light sources around them, and do not spread to other areas. When there are vertical marks on the TV screen, we recommend that you contact professional after-sales maintenance personnel as soon as possible, so that you can get the chain of disposal in time. If there are very small marks on the TV screen, we generally recommend that you observe them for a while, as these marks will most likely disappear on their own after the screen has been working for a while.

However, if the marks persist for a longer period of time and have a tendency to spread (e.g., the vertical marks become longer, dehydrated, or wider), prompt steps need to be taken to contact after-sales service personnel.