Kong TV has a black screen, and there is no picture and sound when it is turned on

Summary. Pro, there are generally several possible reasons why the TV screen is black but there is sound: 1

Signal source problem: If the TV cannot receive the signal source normally, such as TV box, TV set-top box, *****, etc., there may be a black screen but sound. At this time, you can check whether the signal source is connected normally and whether there is a fault.

2.Line connection problems: Problems with the TV's line connection can also result in a black screen with no picture but no sound.

You can check whether the wiring of the TV is loose, the contact is poor, and whether the wiring is damaged. 3.The problem with the TV itself:

The failure of the TV itself can also cause a black screen with no picture but sound. For example, the backlight or display of the TV is malfunctioning, etc. At this time, you need to contact the after-sales maintenance personnel for repair.

4.TV settings issues: The TV's settings may cause a black screen with no picture but no sound.

If you're having trouble with your TV's settings, you can fix the problem by resetting your TV's settings. If none of the above methods can solve the problem, it is recommended to contact the relevant after-sales service personnel or TV repair organization for maintenance and maintenance.

Pro, there are several possible reasons why the TV screen is black but there is a sound group: 1Source Issues:

If the TV cannot receive the signal source normally, such as the TV box, TV set-top box, *****, etc., there may be a black screen but the sound is too cautious. At this time, you can check whether the signal source is connected normally and whether there is a fault. 2.

Line connection problems: Problems with the TV's line connection can also result in a black screen with no picture but no sound. You can check whether the wiring of the TV is loose, the contact is poor, and whether the wiring is damaged.

3.Problems with the TV itself: The failure of the TV player itself can also cause a black screen with no picture but sound.

For example, the backlight or display of the TV is malfunctioning, etc. At this time, you need to contact the after-sales maintenance personnel for repair. 4.

TV settings issues: The TV's settings may cause a black screen with no picture but no sound. If you're having trouble with your TV's settings, you can fix the problem by resetting your TV's settings.

If none of the above methods can solve the problem, it is recommended to contact the relevant after-sales service personnel or TV repair organization for maintenance and maintenance.

The reason why there is sound on the black screen of the TV may be caused by the abnormal power circuit of the TV,The phenomenon of this problem is that the panel button does not respond,The indicator light is not on。 Check whether the 12V voltage of the TV and the 5V voltage of the socks are normal, if the voltage is normal, it may be that there is a problem with the series connection of the input power supply circuit, which is usually because the fuse of the power supply is burned or there is a problem with the voltage regulator chip. 1. The 5V voltage load of the power supply is too heavy, and the voltage is pulled down, or there is a problem with the post-stage signal processor, and some circuits are damaged.

In this case, it is necessary to eliminate the problematic components one by one, check out the problematic components, and replace the faulty components before the voltage can be restored to normal. 2、The power supply of the TV is normal,It may be that the backlight circuit of the TV drive has a good posture problem and absolutely,Causing the TV to have a sound on the black screen。 At this point, it is necessary to connect the monitor to the host computer for boot checking.

When it is close to the screen, it can be found that the screen shows a very dim image, which can prove that the signal processing of the driver board is normal. Then the reason for the problem of the TV is that the functional circuit of the switch that drives the high-voltage control board of the backlight is faulty, as long as the fault of the functional circuit is eliminated, the picture of the TV can be restored. 3. The reason may be because there is a problem with the capacitor inside the TV.

This solution is to disassemble the TV directly and see if the capacitors inside have burned out. If yes, the power should be turned off immediately for corresponding detection.

Summary. Hello dear! The TV only has a black sound screen, which may be caused by the abnormal power circuit of the TV,You should check whether the 12V voltage and 5V voltage of the TV are normal。

It may be that the power supply is overloaded with a voltage of 5V, or that there is a problem with the signal processor of the post-stage. In this case, it is necessary to check for the faulty component and replace the faulty component.

Hello dear dear! The TV only has a black sound screen, which may be caused by the abnormal power circuit of the TV,You should check whether the 12V voltage and 5V voltage of the TV are normal。 It may be that the 5V voltage of the power supply is overloaded, and there is a problem with the signal processor of Senjin or the post-stage.

In this case, it is necessary to check for the faulty component and replace the faulty component. This brigade base.

TV only sound black screen solution: The reason why the TV has a black screen and the sound may be caused by the abnormal power circuit of the TV, and the phenomenon of this problem is that the panel buttons do not have any response, and the indicator light is not on. When encountering such a problem, you should first check whether the 12V voltage and 5V of the TV are normal.

If the voltage is normal, it may be that there is a problem with the number of stages of the input power supply circuit, which is generally the safety of the power supply is burned or the voltage regulator chip is a problem, and the safety of the electric difference monitor is burned and the insurance of the TV needs to be replaced.

Can you elaborate on that a little bit more?

The solution to the black screen of the TV with sound is as follows:Method 1: The reason for the sound on the black screen of the electric astigmatism machine may be caused by the abnormal power circuit of the TV, and the phenomenon of this problem is that the panel buttons do not have any response, and the indicator light is not lit. When encountering such a problem, you should first check whether the 12V voltage and 5V voltage of the TV are normal.

If the voltage is normal, it may be that there is a problem with the number of stages of the input power supply circuit, which is generally due to the fact that the fuse of the power supply is burned or there is a problem with the voltage regulator chip, and the fuse of the TV is burned and the fuse of the TV needs to be replaced. Method 2: The load of the 5V voltage of the power supply is too heavy, and the voltage is too low, or there is a problem with the signal processor of the post-stage, and part of the circuit is damaged. At this time, it is necessary to eliminate the problematic components one by one, check the problematic components, replace the faulty components, and the voltage can be restored to normal.

Method 3: The power supply of the TV is normal, it may be that there is a problem with the backlight circuit of the TV's drive, and the TV screen is black and there is sound after the correction is completed. At this time, the display needs to be connected to the host for boot check,When close to the screen, you can find that the screen shows a very dark image,This can prove that the signal processing part of the driver board is normal,Then the reason for the problem of the TV is that the function circuit of the high-voltage control board that drives the backlight is faulty,As long as the troubleshooting of the function circuit can restore the picture of the TV。

Summary. Method 1: If the power supply load is too heavy, the branch voltage is very low, and it may be that there is a problem with the signal processor of the post-stage and the circuit is partially damaged.

In this case, it is necessary to check and eliminate the doubtful components one by one, drain the faulty components, replace them, and the voltage will return to normal. Method 2: It may be that the circuit connection of the TV is not normal, and this reason is manifested as:

Pressing the buttons on the panel did not respond, and the indicator light did not light up. In such a situation, you must first check the 12V voltage of the TV, and whether the voltage of 5V is normal. If the voltage is normal, it is possible that the circuit stage of the input power supply is wrong, which is generally because the fuse of the power supply is burned, or there is a problem with the chip that stabilizes the voltage, which has to replace the fuse regulator chip.

What to do if the TV has sound but the screen is black.

Method 1: If the power supply is too heavy and the branch voltage is very low, it may be that there is a problem with the signal processor of the post-stage and the circuit is partially damaged. In this case, it is necessary to check and eliminate the doubtful components one by one, drain the faulty components, replace them, and the voltage will return to normal.

Method 2: It may be that the circuit connection of the TV is not normal, and the reason for this is: the button on the panel does not respond, and the indicator light is not on.

In such a situation, you must first check the 12V voltage of the TV, and whether the voltage of 5V is normal or not. If the voltage is normal, it is possible that the circuit stage of the input power supply is wrong, which is generally because the closed fuse of the power supply is burned, or there is a problem with the chip that stabilizes the voltage, which has to replace the fuse regulator chip.

Oh dear.

Oh dear.

The simplest way to deal with it.

There are only two solutions, oh dear.

Oh dear.

That's it, dear.

If you're satisfied.