How long does it take for the TV to turn on? The TV will turn on and the screen will be black for a

If the phenomenon of your TV is: when you first turn on the TV, there is only sound, no light, after a period of time (a few to ten minutes), there is gradually an image, but blurry, and then after a period of time gradually becomes clearer. That is, the imaging tube base is oxidized by moisture, and the insulation resistance is reduced, resulting in the failure to establish the accelerating pole and focusing pole voltage.

With the heating of the filament after start-up, it has a baking effect, so that the insulation resistance is gradually improved, and the voltage of the accelerating pole and the focusing pole is gradually established, and the work is normal.

Solution: Master the model of the picture tube holder of your TV (there are many models, you must find a suitable one, you can also ask someone to help you solder it down and take it), buy one in the electronic market, only 2---5 yuan. Go home and change it, and you're all alive.

If the TV starts to take a few minutes or even more than ten minutes to see the image, and it gradually changes from blurry to clear to be able to watch normally, this is caused by the leakage of the focusing pole voltage caused by the dampness of the picture tube base, your TV will have to wait for a while to light up indicating that the leakage of the tube socket is very serious, and the tube socket should be replaced in time to eliminate the fault.

This should be the hardware of your TV, which part of the hardware is faulty,High latency,It is recommended to contact the after-sales service to detect and deal with it。

If the TV is turned on for a long time, there may be a problem with the internal circuit and needs to be repaired in time, otherwise there may be potential safety hazards.

If it's an LCD TV, it's a problem with the backlight......Or there is a problem with the backlight power supply.

If it's a CRT TV.

That's the problem with the high-pressure pack.

If it's a new TV, it means that there is a quality problem and it needs to be returned or repaired.

If it's an old TV, it's over life, and it's time to change ......

If there is a problem with the power strip or backlight board, it is recommended to send it for repair.

Hello, this situation should be that the power supply circuit board is faulty, and the voltage output is measured with a multimeter to see if it is normal.

Poor quality televisions. The initialization time is too long.

It takes a while for the TV to be turned on, and some of the machines will run a little longer to turn on, but it's not a big problem?

It's the same with my TV set, because it's already going bad, and you can buy another one.

Generally, this phenomenon occurs after the TV is damp in spring.

You don't know this question clearly,Generally, it's the old model that turns on for a long time,It's much better now,The old model is when LCD was just popularized,TV boot is slow。

This is because the TV has not been turned on for a long time.

It is recommended to replace it with a new one or repair it.

How long does it take for the TV to turn on? It means that the memory in the TV is full. The machine is also aging.

Is it a glass case? Or is it LCD?

The main reasons are: 1: There is a problem with the connection, which may be poor contact or damage to the contact wire; 2. Aging and damage of parts; 3. The backlight circuit is abnormal, causing the TV to be on and black for a while.

Suggested treatment:1、Check whether the connection cable between the TV and the set-top box is damaged,If the connection cable is damaged,Try to change the cable again,After changing the connection cable, the TV will return to normal only coincidentally,That is, the fault is removed。 2. There is a problem with one of the parts of the TV, resulting in a black screen of the TV, and the parts of the TV need to be disassembled.

3. If you press the TV power button, there is no response and the indicator light is not on, you need to use the meter to detect whether the voltage is too low and check the input level of the power supply circuit. If so, simply adjust the input stage of the power circuit to bring the voltage back to normal. 4. If the power on is normal, the panel button is normal, and the indicator light is on, but the screen suddenly turns black, it may be that there is a problem with the backlight grip mountain drive circuit.

For maintenance, connect the screen to the host for boot detection, and then get closer to the screen for a closer look. If you can see a dim image, the signal from the driver board is normal. The target is locked on the circuit that drives the backlit high-voltage board and controls the high-voltage board switches.

The TV turns on and goes off as soon as it is turned on, indicating that there is a problem with the power output or power supply load. First, visually check whether the circuit electronic components are obviously damaged.

For example, whether the electrolytic capacitor is bulging, leaking, or cracking the packaging skin, whether the resistor is black (burnt) or white (too high temperature), whether there are black spots on the surface of integrated circuits and transistors, etc. Then disconnect the power output to check if the power supply is normal, and then check the load circuit.

Advantages of digital TVs:

Digital TVs are easier to adjust than analog TVs, providing greater reliability and stability. In particular, the application of VLSI integrated circuits, microprocessors and software will simplify the production process of digital television sets in the future, with low cost and small size, and can be used as the terminal of computers to join the modern information network.

Therefore, digital TV sets will eventually replace analog TV sets, which is an inevitable trend in the development of TV technology.

Every time the TV is turned on and turned on, it flashes and breaks, and it may be that the power contact is not good. Every time the TV flashes on, it goes out. Television set. Television set.

Please tell me first whether you will repair the household appliances, if you will, you can first check whether the circuit is short-circuited, if it is a short circuit, you will first cut off the power of the electrical interface, and then go to repair the line, if it is not a line, then you have to go to the repair shop to let the professional check it, and then in Duan Ming is a problem with electricity or a problem with the TV, if it is a problem with the TV, you should buy a new one, and there is also a sentence to tell you, the old does not go to the new one.

If the backlight circuit is faulty, it may be a malfunction of protection, and it needs to be checked and repaired by professionals.

It has not been operated for a long time, and the internal components are affected by moisture.

There may be three reasons: one is that the power output of the TV is not normal, the second is that the load of the power board of the TV is problematic, and the third is caused by the unbalanced protection of the backlight board.

Check for any of the above issues that may arise:

1. First of all, we need to check whether the power cord of the TV is loose, there is poor contact, etc., if so, we only need to reconnect the power cord.

2. Secondly, we need to check whether there is obvious damage to the electronic components of the circuit, such as whether the electrolytic capacitor is bulging, leaking, and the packaging skin is broken, whether the resistor is scorched or white, whether there are black spots on the surface of the integrated circuit and transistor, etc., if there is damage, the corresponding parts need to be replaced.

3. After that, we need to disconnect the power output, check whether the power supply is normal, and finally check whether there is a problem with the load circuit.

When placing furniture, the TV should be placed in a cool and dry place as much as possible, and leave an open gap between it and the wall to dissipate heat. If you need to clean, wait for the temperature of the TV to return to normal before wiping with a dry cloth. Morning difference.

1. Because the LCD TV will be self-tested on the hardware of the TV and provide stable voltage for the LCD panel during the start-up process, it takes a certain amount of time, so if it takes a minute or two to turn on the TV, it is not slow, this situation is normal, just wait patiently for the TV to complete the boot.

2. If the boot time is more than five minutes, it is basically caused by the aging of the internal parts of the TV, and you should focus on checking whether the filter capacitor of the power supply part is aging, breakdown, or damaged, and replace it accordingly. Non-professional users are advised to contact the after-sales service of the TV for maintenance.

Summary. Hello, I have seen your question and am sorting out the answer, please wait patiently for a minute.

Hello, I have seen your question and am sorting out the answer, please wait patiently for a minute.

If the TV starts after a few minutes or even more than ten minutes to see the image, and the spine source is from blurry to clear and gradually changes to be able to watch normally, this is caused by the dampness of the picture tube socket and the leakage of the focusing pole voltage, your TV will have to wait for a period of time before the town can be lit to indicate that the leakage of the tube socket is very serious, and the tube socket should be replaced in time to eliminate the fault. ”

Summary. Hello pro Under normal circumstances, the TV needs to load the system and hardware self-test to turn on, so it is normal for a certain amount of time to turn on, and it usually does not exceed three minutes. 2.

If the boot time is long, such as more than five minutes still can't turn on, it may be caused by the hardware failure of the TV, such as power failure, switch circuit failure, other internal circuit failure, motherboard chip and other parts failure, etc., this situation needs to contact the TV's after-sales service to conduct a comprehensive inspection and maintenance of the TV to solve.

Under normal circumstances,The TV needs to be loaded with system and hardware self-test to turn on,So it is normal for Sun Chang to take a certain amount of time to turn on,And it usually does not exceed three minutes。 2.If the boot time is long, such as more than five minutes and still can't be turned on, the family trillion may be caused by the hardware failure of the TV, such as power failure, switch circuit failure, other internal circuit failure, motherboard chip and other parts failure, etc., this situation needs to contact the TV's after-sales service to conduct a comprehensive inspection and maintenance of the TV to solve.

If it is an old-fashioned picture tube TV, the time to turn on will indeed become longer, this is because the picture tube is gradually aging and the emission ability is decreasing. It is also normal and will not affect normal viewing. Mori Mo opened.

This is generally caused by the dampness and leakage of the tube socket (focus box), the fault is the same as what you described: there may be no image or very blurry when you first open it, a few minutes or half an hour (some even one or two hours will be normal, and the more you see it, the clearer it is), ,This problem is empty as long as you change a tube socket,You can ask the friends around you,A little bit of TV maintenance friends can be done,That is, the concept of a few yuan,This is not a problem with the brigade,Of course,The picture tube is unlikely to be bad, Not to mention **! When the old Changhong TV starts, it is a long stool,,You press the button after the light 30s try,Don't let you press it before the screen is lit。

Hello pro TV boot time is long,First, some TVs are designed with a boot delay circuit,To protect the TV from causing dry finger boot work,When the resistance value in this delay circuit becomes larger or the capacitor leakage (time constant) changes when it appears,The TV boot time is also long. First, the starting capacitor of the switching power supply of the TV leakage, it takes a long time to reach the working conditions of the switch tube, and the power supply can start to work. Pay attention to observe, if the boot time is getting longer and longer, you need to ask a professional repairer to repair it.