The power indicator of the TV is on but it won t turn on

This situation occurs very frequently, many people have encountered it, it is very likely that your internal power supply is faulty, or it is abnormal shutdown and boot on, and the component device is burned out.

First, disassemble the TV, inspect the parts for visible damage, and measure the output of the secondary power supply. Generally speaking, the secondary power supply of a TV can be easily damaged. As long as the power supply is replaced in a timely manner, the same is true when the component is damaged.

When the TV won't turn on, you should try tapping the TV to see if it turns on.

If the TV can be turned on, it means that the cable plate of the TV is welded somewhere. At this time, as long as the circuit board of the TV is re-soldered, the trouble of the TV not turning on can be eliminated. It may be that the protection circuit of the TV is broken, as long as the fuse tube of the TV is replaced at this time, but if the screen of the TV does not respond, it may be that the phenomenon tube of the TV is broken, and a professional is needed to repair the TV.

I've had a similar situation before, the reason at the time was that my TV was on standby and then I turned off the power switch, so the TV was still on standby when I turned on the TV switch. Use the remote's power on button (usually red) or press the standye button on your TV, then press Channel - (channel, channel -) without this key to see if it can be turned on. It is common for the output voltage of the switching power supply to be abnormal, resulting in a protective shutdown.

The circuit of the line field is abnormal, the protection shutdown occurs, the computer control part is faulty, and the start cannot be guided.

Finally, remind everyone that self-repair is limited to checking the circuit and circuit board, if you have no experience in repair, it is better to find a professional to deal with it.

The TV is broken. Switching on and off the TV with the remote control for a long time has a certain harm to the circuit of the secondary power supply part of the TV, because when the remote control is turned off for a long time, it is equivalent to the long-term work of this part. As for the cause of the break, many failures will form this fault phenomenon, the maintenance cost depends on the size of the failure, and the general cost is about one day of ordinary technical work.

Hello! I'm definitely not the power supply, because the light is still on, and if the light doesn't come on, it's probably the power supply

It should be a problem with the line management, and the maintenance fee is not expensive, and we generally have 60 80 here

If it helps you, hope.

Why is the power indicator light on the TV, but it can't be turned on?

Hello 1The power supply of the TV is abnormal due to the failure of the power supply system, or the power supply cannot be turned on due to the short-circuit fault of a device in the main circuit on the motherboard. 2.

The high-voltage package of the TV is faulty, and the screen cannot be displayed and cannot be turned on. 3.The internal circuit of the TV is short-circuited or the picture tube of the TV is faulty, and the TV cannot be turned on and the display image fails.

There may be several reasons why the TV indicator light is on but cannot be turned on:1、Remote control problemTV to clear the remote control failure or insufficient power,Use the remote control to turn on first,If it is invalid,Try to press the channel button of the TV,Verify whether the remote control is a problem。 2. If the hardware failure of the TV still cannot be turned on, it means that it is caused by the hardware failure of the TV, including:

1. The power supply of the TV is abnormal due to the failure of the power supply system, or due to the short-circuit fault of a device in the main circuit on the motherboard, the power supply protects the car and the limbs of the car, resulting in the failure to turn on. 2. The high-voltage package failure of the TV causes the screen to be unable to display and cannot be turned on. 3. The internal circuit of the TV is short-circuited.

4. The TV picture tube is faulty, the TV cannot be turned on, and the display image fails. If it is caused by the failure of the TV hardware, it is not recommended that the user repair it by himself, but should contact the TV after-sales maintenance personnel to check.

Summary. When the power indicator lights on and the TV does not work, there is a problem with the power output load, and the power output part detects that the output circuit is faulty, and the power supply protection will be activated.

Why is the power indicator light on the TV, but it can't be turned on?

If the noisy power indicator light is on, the TV skin is blind and does not work, it is because there is a problem with the power output load, and the power output part detects that the output circuit is faulty, and the power supply will be activated to fire and air protection.

1. Remote control problemThe TV remote control fails or the power is insufficient, first use the remote control to turn on, if it is invalid, try to press the channel button of the TV to verify whether the remote control is a problem. 2. If the hardware failure of the TV still can't be turned on, it means that the hardware failure of the TV is caused by the hardware failure, including the old grinding: 1. The power supply is abnormal due to the failure of the TV's electric tie training system, or because a device of the main circuit on the main circuit of the main board of the service branch bucket has a short-circuit fault, and the power protection action causes it to not be turned on.

2. The high-voltage package failure of the TV causes the screen to be unable to display and cannot be turned on. 3. The internal circuit of the TV is short-circuited. 4. The TV picture tube is faulty, the TV cannot be turned on, and the display image fails.

Hope it helps! Kiss.

The power light of the TV is on, but it can't be turned on.

Hello, glad to be able to your question. The reasons and solutions for the TV power light to be on are as follows:The general reasons and solutions for the TV to have a power indicator light are not turned on:

1. 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 state], you can press the [Power] button of the remote control again to start the screen and return to normal; 2. 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; 3. After the above methods are checked, the TV still does not respond, and it is generally judged that the hardware failure of the TV causes the TV to be unresponsive, including the failure of the motherboard switch circuit, the failure of the screen wiring, the failure of the screen, the failure of other components, etc.; It is recommended to contact the after-sales service of the TV for a comprehensive inspection and warranty of the TV.

The lights are on but the TV can't be turned on.

The reasons and solutions for the desktop computer not turning on are as follows:

1.The first reason: is the problem of the power supply, due to the fuse of the power supply burned out, the rectifier diode is damaged, the switching transistor breakdown, the main transformer is damaged, the filter capacitor is exploded, and so on, it may lead to the failure to start, boot no response, detection and treatment methods:

Turn on the host, find the plug-in cable of the motherboard and chassis panel, remove the power switch pin cable (power sw) of the motherboard, and the pins on the motherboard are: PWR SW or PS on, two small square-ended steel pins (as shown below), and then use a slotter to short-circuit these two pins, if the host power will turn, this means that the power supply is normal, if it will not turn, it means that the power supply is broken, and it can be replaced.

2.The second reason: is that there is a problem with the boot circuit of the motherboard, such as clock, reset, CPU power supply, MOS tube, etc., which may cause failure to boot, as well as IO, South Bridge, etc

It is to repair the motherboard, (if it is under warranty and send after-sales service).

3.The third reason is that the graphics card's video memory is soldered, the VGA's connected transistors, chip resistors, and capacitors have problems, the performance of the main chip is reduced, the graphics card BIOS is disordered, and the control power supply IC has problems, which will cause the graphics card to fail to work normally, resulting in failure to boot and black screen.

Jianyi repairs the graphics card, adds soldering to the video memory, replaces the main chip, etc., or replaces the graphics card.

4.That is, there is a problem with the boot twist on the host panel (such as not bounce up, broken), it can't be turned on, and when the boot lights up, it can't be turned on, replace the twist or replace the wiring of the boot button with the restart button.