What s the deal with the TV turning on and not responding?

Before turning on the TV, it may not be connected to the power of the TV, so the TV does not respond when it is turned on.

It may be that the remote control of the TV is faulty, for example, the remote control has no power, then the TV does not respond when it is turned on, and it may be that the buffer plate inside the TV, the high-voltage plate and other parts are short-circuited, which causes the TV to turn on and does not respond. If it can't be solved, the booster plate problem should be replaced with a new booster plate first, if it still doesn't work, it is a multi-digit backlight failure, check the circuit, and replace it with a new backlight.

Precautions for the use of televisions.

Adjust the brightness of the TV properly: When watching TV programs, it is not advisable to set the brightness, chromaticity and contrast.

Drive to a big one. Excessive TV brightness not only affects people's eyesight, but also accelerates the aging of the picture tube, thereby shortening the service life of the picture tube.

Pay attention to lightning strikes: TVs should pay attention to lightning protection, and users who set up outdoor antennas should pay special attention. Thunderstorms.

It's best not to tune in to TV shows and unplug them.

The above content refers to Encyclopedia - Television.

Reasons and how to deal with the TV that does not respond when it is turned on:

1. The TV is not connected to the power or the power switch of the TV is not turned on, so there is no response. Just plug it in and turn on the power switch to solve the problem.

2. 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;

3. Check whether there is a problem with the signal source input of the TV, such as whether the connection between the TV and the cable TV signal, digital TV signal or *** machine is normal, after the normal connection, switch the TV to the corresponding signal source mode to return to normal;

4. After the above methods are checked, the TV still does not respond, which is generally judged to be the hardware failure of the TV that causes the TV to be unresponsive, including the failure of the motherboard switch circuit, the failure of the screen cable, the failure of the screen or the failure of the picture tube and base, and the failure of other components; It is recommended to contact the after-sales service of the TV for a comprehensive inspection and warranty of the TV.

1. It may be that the power supply is not connected and the TV cannot be turned on. 2. It may be that the remote control has turned off the screen display key and is in standby. 3、If the above check still can't be solved,It should be that the TV boot does not respond due to hardware failure。

Suggested solutions:1、It is not recommended to disconnect the power supply directly when the machine is usually turned off,You should press the key switch of the TV、Use the remote control to turn it off,Or voice shutdown,And if you don't need to turn on the machine for a long time after shutting down,It's best to disconnect the power supply after about 25minutes。 2. If there is too much dust on the TV circuit board, the dust on the circuit board will stick to the circuit board for a long time, which is likely to cause a short circuit in the circuit, and the electronic components will be slightly burned at this time, which will shorten the service life.

So in order to protect the circuit board and keep it clean, you can use a cotton cloth larger than the TV to cover the air hole for heat dissipation after the TV is turned off, and it is best to cover it again ten minutes after the shutdown, because the TV needs time to cool down after turning it off. 3. To clean the panel frequently, it is best to use a special cleaning solution and spray it on a soft cleaning cloth to wipe the screen. If you don't have a cleaning solution and use regular water, be sure to wring the cloth out before wiping down the TV screen and TV backplate.

When wiping the back panel, the cleaning cloth must be wrung out, or you can use a dry rag to sweep away the dust.

1. Check whether the power cord is plugged in and whether the power supply is electrified.

2. If there is no problem with the power supply and the wires are plugged in, check whether the output voltage of the power strip is normal, if there is a problem, please replace the power strip.

3. If there is no problem with the output voltage of 12V, 5V, etc. of the power board, consider the problem of the decoder board and try to replace the decoder board.

4. If you press the power button and there is a sound, it is generally a problem with the decoder board or LCD screen.

5. If you don't know how to repair, it is recommended to contact the official after-sales service center and the engineer will help check and deal with it.

It is estimated that it is broken, and it is repaired by warranty or at your own expense.

Summary. What is the reason why the TV does not turn on?

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

2.There is no voltage output in the switch and transformer in the TV, and the peripheral electronic components are abnormal.

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

4.The remote control is not powered or damaged.

5.The keys on the control panel of the TV are damaged or leaking.

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

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

Hello, I have seen your question, and I am sorting out the answer, please wait for a while What is the reason why the TV can't turn on the rubber front, and the machine is Liang Yanxi1The power cord is not properly connected or the power adapter has no voltage output. 2.

There is no voltage output in the switch and transformer in the TV, and the peripheral electronic components are abnormal. 3.There is an abnormality in the power board or an abnormality in the switching power supply module (IC).

4.The remote control is not powered or damaged. 5.

The keys on the control panel of the TV are damaged or leakage. 6.There is an abnormality in the motherboard and CPU circuit.

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

The TV can't be turned on,First of all, it's natural to think of the fault of the circuit,Open the back cover of the LCD TV,Carefully look at the circuit boards and didn't find any obvious faults,Then use a multimeter to measure the output angles,Found that the output voltage is very small,So basically lock your eyes on the power board,In order to quickly determine the specific module of the fault,Replace it with a new power board,Start the test machine,Troubleshooting。

In this way, the location of the fault is determined, and the component failure on the power board can be detected intently. After careful inspection, it was found that the rectifier bridge on the power board was broken down, and the fault was still found when replaced with a good rectifier bridge, and finally after another check, it was found that two light couples on the power board were also broken down, and two new light couples were replaced for troubleshooting.

Extended Information: TV Repair Tips:

1. After the lamp is lit, there will be a delay of about one second to two seconds before it goes out, which belongs to overvoltage protection; If the lamp is lit and goes off immediately without delay, it is overcurrent protection.

2. It can also be judged by the backlight control of the limit voltage of the integrated circuit, and under normal circumstances, it will be automatically protected when the voltage of the voltage foot exceeds the limit value, and the display will be normal when it is lower than the limit. So the user can think that the voltage pin will be shorted to ground and force it to work. If it is overvoltage protection, then the lamp will not go out after it is lit; If the lamp is lit and then turned off again, it is overcurrent protection.

What should I do if the TV doesn't respond when it turns on? Then first check whether the power supply cavity is normal? If everything is a normal round car, it may be that there is a problem with the electric Lingyan TV machine, or find a maintenance personnel to check.

It is possible that the plug is not plugged in properly, and it is possible that the switch is not turned on. It is possible that the circuit board is broken. It is possible that the backlight is broken.