Konka Smart TV LED50R6680AU boot problem? The power on screen is black, and the indicator light is n

If the TV boot light does not light up and the screen is black. The first thing to do is to check if the power supply of the TV is normal. Now it's good to replace the external power supply with an external power supply first,If it doesn't work, you have to consider the internal circuit book of the TV。

Generally speaking, the power supply part is the circuit with more faults. At the same time, the maintenance cost is relatively low. He needs to have professional maintenance knowledge to be able to repair himself, if he does not have professional maintenance knowledge, it is recommended to find professional maintenance personnel or after-sales service for maintenance.

Generally speaking, if the power circuit fails, it can be repaired for tens of dollars to 100 yuan.

Check whether the power input circuit components such as power supply fuse, varistor, and anti-interference capacitor are normal.

If all of the above is normal, then measure whether the 300V voltage after rectification filtering is normal.

Summary. Dear, Hello,Konka TVLed50R6000U backlight light light black screen:You can connect the display to the host for boot check,At this time,The reason for the sudden black screen of the TV may be the failure of the high-voltage board,The failure of the high-voltage board is generally due to the fact that the insurance is burned or there is a problem with the switch chip,Consider whether there is a problem with the power supply circuit of the TV,The phenomenon at this time is that the buttons of the panel do not have any response,The indicator light of the TV is not on。

When checking the power supply, first check whether the voltage of the power supply is too low, then you can use the meter to detect, and at the same time check the input stage of the power supply circuit to observe whether the voltage of 12V is converted to a voltage of 5V, which is the most common problem that causes the power supply to suddenly go black.

Hello,I've seen your question,I'm sorting out the answer,Please wait a while Dear, Hello,Konka TV LED50R6000U backlight light light black screen:You can connect the display to the host for boot check,At this time,The reason why the TV suddenly has a black screen may be that the high-voltage board is faulty,The high-voltage board is faulty,The general silver is that the insurance is burned or there is a problem with the switch chip,Consider whether there is a problem with the power supply circuit of the TV, At this time, the phenomenon is that the buttons on the panel do not respond at all, and the indicator light of the TV is not on. When checking the power supply, first check whether the voltage of the power supply is too low, then you can use the meter to detect, and at the same time, you should also check the input stage of the power supply circuit to observe whether the voltage of 12V is converted to a voltage of 5V, which is the most common problem that causes the power supply to suddenly go black.

Summary. The solution to only display Konka after the Konka TV is turned on is:

1、The system of the TV is loaded with an error when it starts, resulting in a crash,So there is only a boot screen; Generally, you only need to turn off the TV and turn it on.

2. If multiple restarts are invalid, it may be that the TV system crashes and the boot cannot enter the system; You need to contact the after-sales service of the TV to restore the system for the TV or flash into the new system to solve the problem.

3. In addition, the hardware failure of the TV will also cause the boot to not be able to enter the system, such as the failure of the motherboard chip, the failure of the internal circuit, the failure of the processor or memory, etc., which needs to be solved by contacting the after-sales service of the TV for maintenance.

The TV model is LED50R6680AU Since the Konka LCD TV was restored to factory settings, every Konka TV will be turned on every time.

Hello, what do you want to ask? What happens every time you turn it on?

How to do a factory reset.

Hello, please wait a moment, immediately inquire about the relevant information for you, and reply to you as soon as possible.

After upgrading, the TV always has the word Konka appearing.

Point the remote control at the TV and press the menu button to bring up menu option 3Find the system settings and press the confirm button to enter 4After entering the system settings interface, find the system recovery option, press the confirm button, the system prompts the user whether to restore the TV to factory settings, and select press the confirm button to start the recovery5

After the TV recovery is completed,The TV companion will automatically recover,It can be used normally after recovery,The TV system is restored to the initial settings,The same as when Lu Xiqing Luxin bought it。

Will it be good to restore the factory reset bucket core? Because the TV conceals the pin and the machine prompts the system to be graded, I have made a determination of the grade, but the TV has a Konka painting macro face, which appears repeatedly, affecting watching TV and I don't know what to do, so I ask you.

After the upgrade, did you restart your TV? ,Make sure the upgrade is successful.,That's it、You can watch TV now, right?

After Konka TV is turned on, it only displays Konka's unaccompaniment and return method:1、The system of the TV is loaded with an error when it starts, resulting in a crash,So there is only a boot screen; Generally, you only need to turn off the TV and turn it on. 2. If the reboot is invalid for many times, it may be that the TV system crashes and the potato machine cannot enter the system; You need to contact the after-sales service of the TV to restore the system for the TV or flash into the new system to solve the problem.

3. In addition, the hardware failure of the TV will also cause the boot to not be able to enter the system, such as the failure of the motherboard chip, the failure of the internal circuit, the failure of the processor or memory, etc., which needs to be repaired by contacting the service after the sales of the TV is chaotic.

Summary. Konka LED50R668 can not work normally after restoring the factory.

Hello dear,Konka TV factory recovery most of the time can not be opened is a problem with the system,It is possible that the recovery is incomplete,Try to restore it again,After the recovery or the same situation, you need to log in to the Konka TV forum with a computer**Flash package copy toUdiskUdisk to Konka TV brush the system,Remember**Brush the package to find the same TV model。

Hope it helps. If my answer is helpful to you, please give a thumbs up (in the lower left corner), I look forward to your like, your efforts are very important to me, and your support is also the motivation for my progress. Finally, I wish you good health and a good mood!

Konka LED50R668 can not work normally after restoring the factory.

Konka led50r668After restoring the factory, it can't be normal to be a good dear,Konka TV factory recovery most of the can't open is a problem with the system,It is possible to restore the incomplete elimination or regret,Try to restore it again,After the recovery or the same situation, you need to log in to the Konka TV forum with a computer**Flash package copy toUdiskUdisk to Konka TV brush the system,Remember**Brush the package to find the same TV model。 Hope it helps. If my answer is helpful to you, please also give a thumbs up (comment in the lower left corner), look forward to your like, your efforts are very important to me, and your support is also the driving force for my progress in Tuanhuai.

Finally, I wish you good health and a happy mood!

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Summary. Konka led50m5580af lcd tv has boot sound, backlight light and black screen what is the reason hello dear, <>

Konka LED50M5580AF LCD TV has a boot sound backlight and a black screen, and there are two common fault forms:1No image, the screen does not light up.

This situation is not necessarily that the screen does not have an image, because the LCD TV screen backlight is damaged or malfunctioning, causing the screen to not light up and not see the image. Therefore, when the screen is not lit, you can use a bright flashlight to illuminate the screen obliquely, if you can see a faint image, it means that there is a problem with the backlight circuit or the backlight is damaged.

Konka led50m5580af lcd tv has boot sound, backlight and black screen, what is the reason.

Konka led50m5580af liquid regret finch crystal TV has a boot sound backlight light black screen what is the reason hello dear, <>

Konka LED50M5580AF LCD TV has a boot sound backlight and a black screen, and there are two common fault forms:1There is no image, and the screen is not lit up in the morning.

In this case, it must be that the screen has no image, because the LCD TV screen backlight is damaged or faulty, causing the screen to not light up and not see the image. Therefore, when the screen is not lit, you can use a bright flashlight to illuminate the screen obliquely, if you can see a faint image, it means that there is a problem with the backlight circuit or the backlight is damaged.

I hope I have been helpful to you, thank you, and I wish you a happy life. <>

Hello boss, Konka LED50M5580AF LCD TV has a boot sound, and the backlight lights light up and the screen is black, and the reasons are as follows:1. The driving circuit of the inner screen of Konka LCD Chang section TV is abnormal. 2. The power supply of Konka LCD TV is faulty.

3. The AD driver board and high-voltage board switch circuit in Konka LCD TV are burned out. 4. The backlight plate of Konka LCD TV screen is faulty. 5. The set-top box of this LCD TV is closed, resulting in a black screen of the TV, no image, only sound.

Hello. Konka led50m5580af lcd tv has boot sound, backlight and black screen, what is the reason 1The reason for the sound on the TV black Zheng Wei rental screen may be caused by the abnormal power circuit of the TV,This problem is manifested as the panel buttons do not have any response,The indicator light is not lit。

When encountering this mountain-like 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; 2.The load of the 5V voltage of the power supply is too heavy, the voltage is too low, or there is a problem with the signal processor of the backstage, and part of the circuit is damaged.

At this time, it is necessary to eliminate the problematic components one by one, check out the problematic components, replace the faulty components, and the voltage can be restored to normal. When replacing it, you should go to a professional maintenance point to find a professional maintenance personnel; 3.The power supply of the TV is normal, it may be that there is a problem with the backlight circuit of the TV, which causes the TV to have a black screen and sound.