Micro Whale TV can t turn on the black screen? The micro whale TV indicator light can t be turned on

Fault analysis: The maintenance method when the LCD TV cannot be turned on, the black screen and other faults should be checked from the power supply part, and then go all the way to the CPU circuit of the motherboard.

Generally, the reasons why the LCD TV cannot be turned on are as follows:

l The power cord is not connected properly or the power adapter has no voltage output.

l There is no voltage output of the switching transformer in the TV, and the peripheral electronic components are abnormal.

l There is an abnormality in the power board or an abnormality in the switching power supply module (IC).

l The remote control is not powered or damaged.

l The keys of the TV control panel are damaged or leakage.

l There is an abnormality in the motherboard and CPU circuit.

l There is a short circuit phenomenon in high-voltage plates, Y plates, buffer plates, etc.

The solution to the LCD TV that can't be turned on:

1) Check whether the 300V power supply of the power supply board is normal, if not, please check the front-end circuit of the power supply, such as transformer, voltage regulator IC, rectifier diode, filter capacitor, etc.

2) If there is 300V power supply, please check whether the power strip has power supply for 5V, 24V, 12V; Please check the small resistors, capacitors, etc. around the switching power supply. If so, check the motherboard, CPU circuitry, etc. further.

Summary:The fault that the LCD TV can't be turned on (except for the fault of the remote control related circuit),Mainly around the power supply part and then to the motherboard,You should start from the power board when overhauling,Start from the motherboard after the power supply is fine。

If this is the case, it is recommended that you turn off the power first, unplug the power supply for a while, and then use it after a while.

I guess if it's not a line problem if it's not a wire. If the TV can't be turned on, there will definitely be a problem. Then you quickly take a look at the product manual, call a customer service**, if you request a replacement or repair within the warranty period, if the warranty period has passed, then you can only arrive.

Repair at a local specialist shop.

The fault first measures whether the voltage of each group at the output end of the main switching power supply circuit is normal. If the above are normal, it means that the switching power supply circuit is not faulty, otherwise it is the switching power supply circuit fault. At this time, the next step is to measure all the DC-DC voltage conversion circuit cores on the motherboard.

That's like the black screen of your micro whale TV can't be turned on,That's probably because there's a problem with its display screen,If there's a problem with the display,Then you need to replace a display。

If the TV can't be turned on, the screen is black, it may be a state of death, and the power should be cut off, and it will be restarted after ten minutes.

Generally speaking, a TV like this must be basically a software problem, causing it to not turn on, and generally speaking, if you haven't been hit by the screen, then it must be a software problem, or a supervisor's problem.

It is recommended that you contact the after-sales customer service of Wewhale and ask the after-sales customer service to send a master to take a look at it, so that you will know what the specific cause is.

Micro Whale TV can't turn on, and if the screen is black, it should be that there is a problem with its power supply.

Weiqiong TV can't be turned on,Black screen,This must be repaired,So that it can be rectified,It's because the parts are destroyed that such a phenomenon will occur。

The TV can't turn on the black screen,You can check the screen or viewer of the TV,These two are more likely。

Summary. Hello,I'm glad to reply to you,Reasons and solutions for the black screen of Micro Whale TV can't be turned on: 1、Backlight plate problem。

After the TV is turned on, if the power cord is connected normally, and the indicator light is also normal, but there is a black screen, it means that the backlight plate of the TV is faulty, and the shell of the TV needs to be opened, the backlight plate needs to be checked, and the damaged backlight plate needs to be replaced in time. 2. Power supply problems. When encountering the phenomenon of black screen of TV, first check whether the panel buttons of the TV are in normal use, whether the indicator light of the TV is on normally, and then check whether the power supply voltage of the TV is too low, if the power supply voltage is too low and the TV screen is black, wait until the voltage is stable to be normal, if the voltage is often low, it is recommended to install a voltage regulator at home.

3. Component failure. The TV has a black screen and is accompanied by some noise, indicating that the triode of the TV has air welding, and the shell of the TV needs to be disassembled, and the phase components are re-welded. 4. If there is no response when turned on and the indicator light is not on, you need to use the meter to detect whether the voltage is too low, and at the same time check the input problem of the power supply circuit to see if the voltage of 12V is converted to a voltage of 5V, resulting in a black screen.

If so, simply adjust the input stage of the power supply circuit to bring the voltage back to normal. I hope it will be helpful to you, and you can always find the teacher if you have any other questions in the future. I wish you all the best in your life.

The TV lights are flashing and flashing, but the TV is black.

Hello,I'm glad to reply to you,Reasons and solutions for the black screen of Micro Whale TV can't be turned on: 1、Backlight plate problem。 After the TV is turned on, if the power cord is connected normally, and the indicator light is also normal, but there is a black screen, it means that the backlight plate of the TV is faulty, and the shell of the TV needs to be opened, the backlight plate needs to be checked, and the damaged backlight plate needs to be replaced in time.

2. Power supply problems. When encountering the phenomenon of black screen of TV, first check whether the panel buttons of the TV are in normal use, whether the indicator light of the TV is on normally, and then check whether the power supply voltage of the TV is too low, if the power supply voltage is too low and the TV screen is black, wait until the voltage is stable to normal, if the voltage is often low, it is recommended to install a voltage regulator at home. 3. Component failure.

The TV has a black screen and is accompanied by some noise, indicating that the triode of the TV has air welding, and the shell of the TV needs to be disassembled, and the phase element is re-repaired and re-soldered, it is not recommended that the user operate it by himself, and it is more appropriate to hand it over to a professional maintenance master. 4. If there is no response when turned on and the indicator light is not on, you need to use the meter to detect whether the voltage is too low, and at the same time check the input problem of the power supply circuit to see if the voltage of 12V is converted to a voltage of 5V, resulting in a black screen. If so, simply adjust the input stage of the power supply circuit to bring the voltage back to normal.

I hope it will be helpful to you, and you can always find the teacher if you have any other questions in the future. I wish you all the best in your life.

Summary. Micro Whale TV can't turn on the black screen? Hello dear!

Micro Whale TV can't be turned on. There may be several problems:1

Power issues. Whether the power cord is damaged. Check whether the power cord can be powered on normally,After the power cord and the TV plug-in interface are connected,Whether the display light under the Micro Whale TV screen is on normally。

2.Whether the socket is powered on normally, if there is a test pen at home, test it to see if the test pen is displayed normally. 3.

In the case that the socket and power cord are no problem,Whether the switch of the TV is on or on,The on/off key of Micro Whale TV is on the left or right side of the bottom of the TV,Please try to use the power button when the power is kept on。 4.If the display light is normal and cannot be turned on, use the elimination method:

Is there a problem with the remote control. Press and hold the center control button at the bottom of the left back of Micro Whale TV,See if the TV responds。 5..

The TV motherboard is damaged and the TV cannot start normally,If the display light of the micro whale TV does not light up after powering on,Eliminate the above possibility that there is a problem with the motherboard that causes it to not turn on。 If the motherboard is damaged, please call 4006726726 Microwhale customer service to provide on-site repair service or return to the factory for inspection and repair service. The warranty period of the Micro Whale TV motherboard is one year.

If you have not purchased the extended warranty, please consult customer service for specific charges. Hope it helps!

The plugged in power indicator does not light up.

Micro Whale TV can't turn on the black screen? Hello dear! Micro Whale TV can't be turned on.

There may be several problems:1Power issues.

Whether the power cord is damaged. Check whether the power cord can be energized normally,After the power cord rolls silver and the TV plug-in interface is connected,Whether the display light under the micro whale TV screen is on normally。 2.

Whether the socket is powered on normally, if there is a test pen at home, test it to see if the test pen is displayed normally. 3.In the case that the socket and power cord are no problem,Whether the switch of the TV is on or on,The switch key of Micro Whale Electric Fight Search is on the left or right side of the bottom of the TV,Please try to use the power button when the power is kept on。

4.If the display light is normal and cannot be turned on, use the elimination method: whether there is a problem with the remote control booster.

Press and hold the center control button at the bottom of the left back of Micro Whale TV,See if the TV responds。 5..The TV motherboard is damaged and the TV cannot start normally,If the display light of the micro whale TV does not light up after powering on,Eliminate the above possibility that there is a problem with the motherboard that causes it to not turn on。

If the motherboard is damaged, please call 4006726726 Microwhale customer service to provide on-site repair service or return to the factory for inspection and repair service. The warranty period of the Micro Whale TV motherboard is one year. If you have not purchased the extended warranty, please consult customer service for specific charges.

Hope it helps!

It should be that a certain cable in the TV has been burned or the TV motherboard has been replaced. Check whether you have pressed the [Power] button of the TV remote control to turn off the screen display of the TV, so that the TV is in [Standby Mode], you can press the [Power] button of the remote control again to start the screen and return to normal.

Micro Whale Teasing Qi Smart Voice TV is a smart TV brand launched by Micro Whale Technology,It has a lot of resources,Enjoy home entertainment in the smart era of network TV。 Microwhale has massive content resources, and has launched smart products such as Microwhale smart voice TVs, smart projectors, home projectors, and VR all-in-one machines, providing a new generation of Chinese families with an immersive entertainment experience.

Brand Profile. Micro Whale adheres to the geek spirit of "pursuing the ultimate without compromise" and the ingenuity quality of "perfection without compromise", creating a futuristic smart TV.

Micro Whale TV with 24 hours of uninterrupted massive high-quality video, "Xiaobai" can voice remote control of the ultra-convenient interactive experience, based on tens of millions of users of big data intelligent system,It will become the majority of"Internet natives"The "chief entertainment officer" in the family living room,Provide a happy family with all the entertainment、Entertainment and education experience。

Relying on Chinese Culture (CMC), Internet giants A Hunger Xiaoli Baba, and Tencent, Micro Whale TV integrates all kinds of high-quality upstream content resources around the world. These world's top content production resources make Micro Whale TV have a unique content advantage. This micro whale TV created by the "geek dream team" including Li Ruigang, Li Huaiyu, Feng Xincheng, and Li Jian.

1. The voltage is abnormal: If the TV is turned on vertically, the indicator light is on, but the TV sometimes has a black screen and sometimes it is normal to turn it on, and when it is turned off and turned on again, there is a black screen or a color bar of a branch, it should be that the voltage of the power supply is abnormal, and you can test whether the output voltage is 5V. Workaround:

Check whether there are any faulty parts in the peripheral circuits of U2, and restart the machine after replacing U2 for troubleshooting. 2. Backlight plate failure: If only the logo of the TV appears after the TV is turned on, and then it is not displayed, generally Zheng Zhao said that this is a backlight board failure, and the common reason is that the high-voltage inverter and control transistor of the backlight board are air welded.

Solution: The control transistor and high-voltage inverter of the backlight board need to be tinned and repaired. Precautions for the use of the TV, do not disassemble the TV without permission.

When the TV fails, you must go to the professional repair department to repair it, and you must not disassemble it yourself, because the TV has high-voltage electricity stored inside it in use, and the high-voltage electric difference is about 1000 volts, and the TV is very damaged by electricity when disassembling it without permission, and it is not clicked in time, if you make a mistake in the Yuhuai line, the TV may be damaged and permanently unusable.

Hello,There are many reasons why the micro whale TV can't turn on the black screen,For example, power supply problems,You can check whether the plug is loose,Whether the power cord is damaged,You can replace it with a new one; Or the remote control locks the TV, and you can press the switch at the bottom of the electric wheel Weishi machine to start when the power is on; The reason may be that the motherboard of the TV is faulty, so the TV cannot be turned on normally, and you can find a professional maintenance personnel to solve it. How to solve the sudden black screen of Micro Whale TV:1、If it is a power supply problem,Then plug it back in。

2. If the black screen of the TV cannot be turned on and there is a crackling sound, it may be because the inside of the TV is too wet and the TV components are damaged and need to be replaced with a new one. 3. In this case, it is also possible that the back panel of the TV is faulty, resulting in the screen being black and unable to see the image, it may be burned, and it needs to be replaced with a new one. 4. If there is a failure of the secondary power supply, then this can only be repaired by professional maintenance personnel.

We usually can't use the TV for too long when we usually use it,This can easily lead to poor heat dissipation,Overheating burns the hardware。 And in the rainy season or a more humid climate,We need to frequently turn on the TV to evaporate the moisture inside the TV,Usually as long as reasonable use and regular maintenance,You can reduce the failure rate of the TV,If there is a problem that we can't deal with, we will find a professional maintenance wax and training master to deal with。