black screen failure

The failure of the following three links can lead to the black screen of the TV:
Author:Xiong Zhiqiang   Time:2021-09-10 15:47 Browse(null)
There are several reasons for this phenomenon
Author:Ye Yu   Time:2021-09-09 08:44 Browse(null)
The display has no grating (black screen), and its indicator light flashes. There are two possibilities
Author:Xu Liansong   Time:2021-08-21 17:54 Browse(null)
The problem with the screen is that the high-voltage board of the backlight is broken. It's a common fault. It's not expensive to repair. Just over 100 points is enough
Author:Wu Wenjing   Time:2021-08-18 10:17 Browse(null)
Samsung display is black screen, we suggest you:
Author:Wang Yifen   Time:2021-08-17 16:52 Browse(null)
Samsung mobile phone has boot screen, but can't boot to standby screen normally. You can do the following: 1. Take out SIM card and SD card at the same time, and then try to boot again. 2. When you see the "Samsung" logo icon when you restart, hold down the [menu key] (left touch sensitive key) and hold down the [volume down key] for the recently launched models until the word "safe mode" appears in the lower left corner of the screen, and then let go to back up the data (such as contacts, SMS, photos, etc.), If you can't enter the safe mode or the problem remains after operation, it is recommended to take the mobile phone Three Guarantees certificate and send it to the nearest Samsung service center/
Author:Zhu Decai   Time:2021-08-16 16:48 Browse(null)
Samsung mobile phone has boot screen, but can't boot to standby screen normally. You can do the following: 1. Take out SIM card and SD card at the same time, and then try to boot again. 2. When you see the "Samsung" logo icon when you restart, hold down the [menu key] (left touch sensitive key) and hold down the [volume down key] for the recently launched models until the word "safe mode" appears in the lower left corner of the screen, and then let go to back up the data (such as contacts, SMS, photos, etc.), If you can't enter the safe mode or the problem remains after operation, it is recommended to take the mobile phone Three Guarantees certificate and send it to the nearest Samsung service center/
Author:Kong Huabo   Time:2021-08-16 12:28 Browse(null)
Samsung display black screen, suggest you: 1. Check the connection of both ends of the signal line, and observe the picture after fastening. 2. Press the [source] key or [switch / confirm] key on the display body to switch the signal source. 3. Replace other computers for testing and troubleshooting. 4. If it is sa series monitor, please login Samsung website to download the update program and try again.
Author:Feng Wei   Time:2021-08-16 12:27 Browse(null)
Samsung LCD common faults:
Author:Zhang Hailiang   Time:2021-08-16 11:22 Browse(null)
In the process of using the control system, we occasionally encounter the phenomenon of LED display screen appearing black. The same phenomenon may be caused by a variety of reasons, even the process of screen blackening will vary with different operations or different environments. For example, it may be black at the moment of power on, it may be black during loading, it may be black after sending, and so on. In case of this phenomenon, please note that the "fault" can be judged by referring to the following aspects: (1) please ensure that all hardware including the control system has been correctly powered on+ 5V, do not connect reversely or wrongly) ⑵ check and confirm again and again for connection control/
Author:Wang Guohua   Time:2021-08-04 17:54 Browse(null)
This phenomenon is the main board problem, which has nothing to do with the screen and high-voltage board. The high-voltage board is the component that provides backlight. As long as there is backlight, it means that the high-voltage board is normal. From the fault phenomenon, the main board problem should be that a component is slowly damaged after being heated. It should be the problem of the main chip. It may be caused by poor heat dissipation. At the beginning, the problem is that the white screen is normal, and then the white screen is gray after working, which indicates that the component is slowly damaged. LCD has at least one year warranty period, generally three years warranty. I suggest you find the manual, call after-sales and ask about the warranty.
Author:Sun Qian   Time:2021-08-02 14:38 Browse(null)
1、 [fault phenomenon] LCD TV will turn black once it is turned on, sometimes
Author:Tao Tingting   Time:2021-07-30 15:43 Browse(null)
Cause analysis of LCD TV black screen caused by other reasons usually LCD TV backlight circuit connected with external components is the main board and power lamp components, but some screen backlight power is also connected with logic board, the logic board working state will give feedback to the backlight circuit, in order to normally start the backlight circuit board. When the logic board fails to work normally, the accompanying sound will be normal and the screen will be black. For example, Changhong 3d42a70001c LCD color TV (lm381sd movement) can hear the boot music, but the backlight is not bright. The backlight control signal (bl-on) 3.36v is normal; Disconnect the connection line (CN3) from the backlight booster board to the logic board, and the backlight will return to normal, or the screen will be black. From this push/
Author:Jiang Huaan   Time:2021-07-29 12:26 Browse(null)
The common reason is that the voltage plate has bad components, or the lamp tube is damaged.
Author:Hu Zhimin   Time:2021-07-26 16:48 Browse(null)
In general, this phenomenon is caused by the loose contact between the LCD screen and the drive board.
Author:Liu Wenying   Time:2021-07-26 15:48 Browse(null)
The main reason is that it will automatically protect the password and account after startup. HP's is pure normal, and don't worry. If you are worried, press F11 or ESC when you restart.
Author:Zhang Yi   Time:2021-07-25 15:47 Browse(null)
It may be that the power supply of the monitor is insufficient. Another reason is as follows:
Author:Jing Peng   Time:2021-06-24 16:48 Browse(null)
It's not loose
Author:Bai Yanxia   Time:2021-06-22 14:37 Browse(null)
This was the case when my screen broke down
Author:Xu Qin   Time:2021-06-21 11:22 Browse(null)
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