The TV keeps turning on the red light? The TV shows a red light but it won t turn on

The power indicator of Changhong LCD TV is on, which means that the TV has been connected to the power supply,The main reasons and solutions for not turning on at this time are as follows:1、The TV is in standby,So it can't be turned on; For example, if the user mistakenly presses the [Standby] button of the TV remote control to make the TV in the [Standby state], then you can press the [Standby] button of the remote control again to wake up the TV and return to normal. 2. If it is determined that the TV is not in standby mode, it can be basically judged that the hardware failure causes the machine to not be turned on, such as the failure of the TV switch circuit, the failure of the screen cable, the failure of the screen, the short circuit or failure of other components, etc.;

1. The on-board button and the remote control button are invalid, and the boot operation cannot be carried out, which is very unlikely and generally not all fail at the same time.

2. The power supply load in the machine is faulty, resulting in power protection and refusal to turn on.

3. The power supply of the whole machine itself fails to work.

4. The operation command cannot be executed due to the CPU circuit failure.

Solution: Try to change the remote control again; If it doesn't work, contact the TV maintenance personnel to repair it at home;

The reason why the TV has a red light flashing indicates that the TV is faulty, it may be that there is a problem with the TV signal processing equipment, or it may be that the interface of the signal is loose, resulting in the signal can not be displayed normally, which requires checking the signal equipment. The red light flashing on the TV may also be the fault of the power board, such as the output voltage of the power board is too low, can not reach the normal working voltage required by the TV, to solve this problem, the power board needs to be checked and repaired.

If the indicator light is on but the situation is very unstable, then it is because the voltage is unstable, or there is a problem with the capacitor, and the voltage is unstable and needs to be repaired and adjusted, and the capacitor needs to be replaced with a new capacitor if there is a problem.

Generally, because the voltage is unstable, or the capacitor has a problem, if the voltage is unstable, it needs to be repaired and adjusted, and the capacitor needs to be replaced with a new capacitor, and the capacitor replacement can be asked by the maintenance personnel.

1. Check whether you have pressed the "Power" button of the remote control or TV to turn off the screen display. If the TV screen does not display due to this situation, you can press the "Power" button again to turn the screen on.

2. If it is not a power supply problem, check whether there is a problem with the signal source input of the TV. That is, check whether the connection between the TV and the cable TV signal, digital TV signal, *** machine and other equipment is normal. After the normal connection, switch the TV to the corresponding source mode to return to normal.

3. If the problem is not solved after eliminating the power supply and connection problems, it is judged to be a hardware fault of the TV. At this time, it is necessary to contact the after-sales service of the TV to conduct a comprehensive inspection and warranty of the TV.

Common troubleshooting of TV sets:

1. The TV screen is black and there is sound.

First of all, you should check the plug-in cable behind the TV, whether each cable is plugged in at a specific position, and confirm that the socket of each plug is in good contact and there is no loosening. If it is caused by loose wire, it can be fixed.

Secondly, hardware problems will also cause the TV to go black, including display circuit failure, display display failure, and cable failure. After eliminating the problem of the socket part, you can contact the relevant after-sales maintenance personnel.

2. The TV suddenly goes black and can't start.

In this case, if the power indicator does not turn on, it means that the TV has a black screen due to a sudden power failure due to a power connection problem. At this time, you can take a look at the power situation at home, whether the power plug is loose, and whether the power cord is faulty.

Check whether the TV is in standby mode, if it is in standby mode, you need to remotely exit the standby mode; Check if the remote control is working properly, if there is a short circuit fault, the TV cannot be turned on, and it needs to be replaced to solve it. Common reasons why the TV shows a red light but can't turn on and how to solve it:1. The TV is in standby mode:

When the TV is in standby mode, the TV is in a dormant state, you must exit the standby mode, you can turn on the TV, and the user only needs to control the TV system to exit the standby mode. 2. Remote control failure: The remote control line is faulty and cannot send a signal, resulting in the TV not being able to turn on if it cannot receive the signal, so the user can replace the remote control of the same brand and turn the TV on again.

3. The signal acceptance of the set-top box is damaged: If the signal acceptance of the set-top box is damaged, there will be no response to the signal acceptance, resulting in the TV not being able to open, and the user needs to contact the maintenance personnel for direct maintenance, so as to solve the problem. 4. TV line failure:

The signal transmission line inside the TV has been in an open circuit,Signal transmission interruption,So the TV has not been able to turn on,The user needs to contact the maintenance department for maintenance,Only then can the TV be turned on again。

If the TV has a red light but can't be turned on, you need to check whether the TV is dead, if it is dead, you can turn on the TV by restarting it; Check whether the TV is damaged by parts, and damaged parts will also cause the TV to not turn on and turn on the red light, so you need to repair and replace the damaged parts. Common problems and solutions for the TV to turn on the red light:1、TV freeze:

If the TV crashes, the TV won't turn on, turn on the red light, turn off the power supply, wait a few minutes and then turn it on or unplug it, just restart the TV. 2. The TV capacitor is damaged: After the capacitor is damaged, the TV will turn on the red light and cannot be turned on.

Users should immediately contact the maintenance department for repair or capacitor replacement, in order to solve the problem that the TV cannot be turned on. 3. The voltage of the TV is unstable: the TV cannot be turned on, and the display light of the TV is red and has been flashing, mainly because the voltage is unstable, which will also cause the TV to not be turned on, and it needs to be checked and repaired, and the problem of voltage instability can be solved, and the problem of the TV cannot be turned on can be solved.

4. Signal line failure: The signal line is damaged or the installation signal line is wrong, and the TV will not turn on the red light, and the line needs to be checked to ensure the normal operation of the line, so that the TV can maintain normal operation.

The TV won't turn on, and the red light won't come on.

Hello, dear, glad to answer for you, dear 1It may be caused by the TV not being connected to the power or not turning on the power switch, you can check item by item to ensure that the TV has been connected to the power supply, and the power switch on the body is turned on, and it can return to normal. If the power has been turned on and the power switch is turned on, and the indicator light of the TV is still not on, it means that the hardware failure of the TV is caused by the hardware failure, and this situation needs to be solved by contacting the after-sales service of the TV to conduct a comprehensive inspection and maintenance of the TV.

2.The standby power indicator light is on, indicating that the control system crystal is working and the power supply of the control system is normal. The indicator light can flash the second start, indicating that the standby working process of the control system is normal, if it cannot be turned on, it must be a fault in the circuit outside the control system, and the indicator light flashes during the second start-up process in the previous issues of this journal, indicating that the control system has received the user's instructions.

And through the decoder in the CPU into the control indicator command, from the CPU indicator output pin control PWM pulse width control signal, so that the indicator works in the switch state, then it shows flashing. 3.The set-top box does not turn on, resulting in no image and sound output for the TV.

You can open the set-top box. It is also possible that the backlight board of the TV screen is broken, and the screen driver circuit inside the TV is faulty due to virtual welding. You can also check whether the switch part of the switch circuit on the AD board control high-voltage board in the TV is burned out.

I hope my answers can help you and wish you a happy and healthy life!!

The TV won't turn on, and the red light won't come on.

Hello, glad to answer for you. The TV won't turn on, and the red light won't come on. First, check that the power supply of the TV is not well connected or not energized, and check the power supply of the TV.

We can plug it in again, or we can use the charger to check if there is power in the outlet. Second, the TV remote control is out of power or there is a fault Third, the internal parts of the TV are faulty, and you need to find after-sales maintenance If the above two methods have been tried, it still can't solve the problem, then even if the internal parts of the TV fail, there are many factors that cause the TV to not be opened, such as fuse, rectifier bridge, filter capacitor, electric staring Pi Changyuan grip switch tube, power management, rectifier output diode, filter capacitor and other component failures, which will cause abnormal TV startup.