The lower part of the Mi TV is dark,The Mi TV is turned on and darkened

The lower part of the image is dark, the brightness is not enough, the analysis cause should be caused by the failure of the backlight board, you can check the circuit board, especially the MOS module, whether there are traces of scorching or yellowing, this situation generally needs to replace the same board, you can solve the problem, after the board is replaced, and then fuse.

replacement. Extended information: The backlight plate is often associated with the failure of the TV backlight, and the situation of this phenomenon is that when the machine is just turned on, there is a light emitting action, but it will go out after a while. After extinguishing, if facing the sun's rays.

Or in the case of lights, you can see the image on it and the sound of the TV is normal. Due to the current technological development, the general maintenance department does not have the technology to replace the backlight tube, so if a light is damaged, the overall brightness of the TV can be increased. Because of the presence of a backlight panel, when the brightness is high, it can mask the effects of damage to a small part of the lamp.

Basically, it is imperceptible, but if it is broken, it needs to be maintained by the manufacturer. There is also a situation where a certain backlight tube starts up slowly, and the system will cut off its power out of self-protection, so a black screen appears in a certain area.

At this time, the machine can be turned on several times and it will be solved.

In November 2022, the lower half of the screen of Xiaomi TV 2 at home is dimmed, and sometimes it is normal. Buy the light bar and replace it yourself,After dismantling the machine, it was found that the light bar was lower-mounted,Only two light bars are installed left and right,If the light bar is faulty, it should also be the brightness of the left and right screens is inconsistent。 As expected, the fault persisted after replacing the light bar.

It feels like it's a screen problem.

It's because of Xiaomi TV.

The machine has a light sensor that automatically adapts to the surrounding brightness. When the light sensor on the top senses that the TV is in a dim environment,It will automatically reduce the brightness of the screen,So that the display of the screen will not be too bright and dazzling,On the other hand,If the light sensor of the TV senses that the surrounding light is brighter or sufficient,It will automatically increase the brightness,Make the TV picture display brighter。

Solution: Turn on your Mi TV and enter the main interface.

Press the arrow keys up with the remote control to bring up the control interface and select "Settings"; Then select "Image & Sound".

If you need dynamic backlighting, adjust the dynamic backlight to the ON state; If you need to adjust the backlight intensity, select "Backlight Intensity". You can adjust the backlight intensity with the left and right arrow keys of the remote control.

Finally, press the back button, return to the "Image and Sound" interface, then select "Image Parameters", select the brightness, you can talk vertically to press the left and right arrow keys of the remote control to adjust the brightness, adjust the brightness to the appropriate range and press "OK".

Supplementary knowledge: how to cast the screen of Xiaomi TV.

First, open your phone's settings, find Bluetooth, tap "More connection methods", and then tap the "Wireless display" option. Then turn on"Turn on wireless display"The button on the right side of the option turns on the slow spine,Then click to select the Xiaomi TV that needs to be connected,After that, an option box will pop up on the TV,Click accept to connect successfully to cast the screen。

Summary. Kiss hello Xiaoting for you 1, the backlight plate of the TV screen is abnormal. Workaround:

Let the professional master disassemble the machine for inspection and maintenance. 2. There is an interference source next to the color TV. Workaround:

Remove electrical appliances and other devices that have magnetic field interference next to the TV. 3. The TV circuit is soldered. Workaround:

First of all, it is necessary to find out the position of the virtual soldering of the circuit,After finding the position of the virtual soldering of the TV,Re-soldering the place of the virtual soldering,Connect it well to solve the problem of the phenomenon of flickering light and dark of the image。 4. The TV has a long service life, and the aging and deterioration of electronic components or too much dust in the machine will overheat the machine and cause the components to burn. Resolved:

Replacing the TV with a new one also prevents the aging TV from radiating a lot. 5. The picture tube of the TV is damp or aging. Resolved:

Disassemble the machine for detection, and then replace the corresponding picture tube.

Kiss hello Xiaoting for you 1, the backlight plate of the TV screen has a different front. Solution: Let a professional master disassemble the machine for inspection and maintenance.

2. There is an interference source next to the color TV. Solution: Remove electrical appliances and other equipment with magnetic field interference next to the Zenwu TV.

3. The phenomenon of silver reputation virtual welding occurs in the TV circuit. Solution:First of all, find out the position of the circuit virtual welding,After finding the position of the virtual welding of the TV,Re-weld the place of the virtual welding,Connect it well to solve the problem of the phenomenon of flickering and dimming of the image。

4. The TV has a long service life, and the aging and deterioration of electronic components or too much dust in the machine will overheat the machine and cause the components to burn. Solution: Replace the TV with a new one, and also prevent the aging TV from radiating.

5. The picture tube of the TV is damp or aging. Solution: Disassemble the machine for detection, and then replace the corresponding picture tube.

Xiaomi TV was released on 2013year9month5day,Rice noodles are a concept that Xiaomi has been emphasizing since its release,And "insist on being friends with rice noodles"It is also Xiaomi's most favored brand culture omen。 Although there is no clear definition and age level for Xiaomi, there is no doubt that a group of people who love Xiaomi have promoted the improvement of Xiaomi products. And the rice fan group is mostly young people,Therefore, Xiaomi will also set this TV as "the first TV for young people",This is also the group that is most receptive to new things,Smart TV can stimulate its interest in purchasing,Therefore, a clear target audience and excellent fan culture have a completely auspicious reason for Xiaomi TV to form a strong impact on the traditional TV industry。

Hello,Dear,What should I do if the Xiaomi TV screen flickering on and off,Possible causes and solutions for the flickering and dimming of the TV image:1、The backlight plate of the TV screen is abnormal。 Workaround:

Let the professional master disassemble the machine for inspection and maintenance. 2. There is an interference source next to the color TV. Workaround:

Remove electrical appliances and other devices that have magnetic field interference next to the TV. 3. The TV circuit is soldered. Workaround:

First of all, it is necessary to find out the position of the virtual welding of the circuit, after finding the position of the virtual welding of the TV, re-soldering the place of the virtual welding, and connecting it well can solve the problem of the phenomenon of flickering light and dark of the image. 4. The TV has a long service life, and the aging and deterioration of electronic components or excessive dust in the machine will overheat the machine and cause the components to burn. Resolved:

Replacing the TV with a new one also prevents the aging TV from radiating a lot. 5. The picture tube of the TV is damp or aging. Resolved:

Disassemble the machine for detection, and then replace the corresponding picture tube.

If the screen of your Xiaomi TV has become particularly dim, there may be several reasons:

1.Brightness setting too low: Check if your TV's brightness setting is too low, you can try adjusting the brightness setting to fix the problem.

2.Faulty backlight: If your TV's backlight is faulty, it can cause the screen to become dim. You can contact Xiaomi customer service for rough friend repair or car replacement.

3.TV software issues: Sometimes TV software can cause the screen to dim. You can try updating your TV software or resetting your TV to fix the problem.

4.Ambient light issues: If the ambient light around your TV is too strong or too weak, it can affect the brightness of the screen. You can try adjusting the lighting environment around your TV to fix the problem.

If none of the above methods can solve the problem, it is recommended that you contact Xiaomi customer service for further inspection and repair.

It could be due to the following reasons:

1.Uneven backlighting: If your TV's backlight is uneven, it can cause the screen to be half bright and half dim. This can be due to aging or damaged backlight tubes.

2.Monitor Failure Burn: If your TV's display fails, it can cause the screen to be half bright and half dark. This could be due to damage to the monitor's circuit board or a problem with the monitor itself.

3.Signal issues: If the signal received by the TV is unstable, spinal or disturbing, it can cause the screen to be half bright and half dark. This can be caused by a problem with the TV signal line or signal source.

If you encounter this situation, it is recommended that you contact Xiaomi customer service or professional repairers for repair and repair.

If the screen of your Mi TV is very dark, you can try the following methods:

1.Adjust the brightness: Find the brightness adjustment button on your TV's remote control and gradually increase the brightness until you reach the right brightness.

2.Check the backlight: If there is a problem with the backlight of the TV, it will cause the screen to be darkened. Try turning on the back of the TV to check if the backlight is working.

3.Check the power cord: If the TV power cord is not in good contact, it can also cause the screen to dim. Try plugging the power cord back in to make sure it's in good contact.

4.Update the firmware: If the firmware of the TV stool is too old, it will also cause the screen to dim. You can try to update the firmware of your TV to fix the problem.

If none of the above methods can solve the problem, it is recommended to contact Xiaomi customer service or professional maintenance personnel for maintenance.