What does it mean that there will be a yellow and red logo in the upper left corner of the TV

Summary. When the LCD TV home page interface, the upper left corner of the screen is red.

Hello dear, method 1: Move all the things next to the TV 2: Turn off the TV, unplug the TV bolt, stop for 1 hour and try again, 3:

When the LCD TV home page interface, the upper left corner of the screen is red.

When the LCD TV home page interface is dressed, the upper left corner of the screen shows red Hello dear,Method 1:Remove all the key liquid next to the TV2:Turn off the TV,Unplug the TV bolt,Stop for 1 hour and try again,3:

55Inch LETV LCD TV, only this interface, the upper left corner of the screen is red。

55Inch LETV LCD TV only has this interface, when the upper left corner of the screen is red,Hello dear,Most of the discoloration on the side of the TV screen is caused by the TV magnetization; The solution is as follows: 1. Check whether there are other magnetic appliances around the TV that cause the TV to be magnetized and cause discoloration, such as *** machine, stereo, induction cooker, refrigerator, etc.; Usually all it takes is to remove these magnetized appliances and Iwaeda will restore the TV's image to normal. 2. If there is no magnetic electrical appliance around or it still can't be solved after removing the magnetic electrical appliance, you can try to power off the TV, restart it again, and repeat it several times, and use the degaussing circuit inside the TV to automatically degauss it to return to normal. 3. If the degaussing circuit does not play any role, it can generally be judged that the degaussing circuit of the TV is faulty, and it is recommended to contact the after-sales service of the TV to arrange professionals to come to the door to overhaul the TV.

It depends on the degree of darkening of the lower left and right corners.

If the degree of brightness and darkness is not very obvious, it is generally normal. Because the backlight source of the LCD screen is generally still a fluorescent tube, the light is averaged to each pixel of the screen through the reflector and grating plate. But the light is not absolutely average.

If the degree of brightness and darkness is obvious, it may be that the backlight tube emits uneven light, and the reason for the uneven light emitting is mostly because of the aging of the lamp or quality problems.

You'd better go to the mall and compare it with the same model of machine under the same conditions, and if the difference is large, you can ask for a replacement.

1.If it's just that the color of the light is wrong and it can be used normally, it means that the LED indicator is broken, or the line is open;

2.If it can't be used, it's always red, indicating that the TV's control system is not working properly. If you want to send it for repair, what is the problem?

That's too many, and it's possible that there's a problem with the control system, or something wrong with the power system.

There are many reasons for this:

1. The TV is not turned on, it is in standby mode, you can press the channel + button or the power button on the remote control, if the TV is normal, it should start working;

2. The output circuit of the line is abnormal, such as the line tube has broken down, the internal damage of the line transformer, the breakdown of the reverse capacitor, the open circuit of the deflection coil and other faults need to be repaired;

3. If the visual amplifier circuit is faulty, it is necessary to test three cathode voltages to find the fault;

4. If the decoding block is faulty, it is necessary to test the voltage of each pin to find the fault;

5. The acceleration pole is open, and the filament power supply is abnormal.

If one of the above faults exists, the fault must be found and eliminated step by step, so that the color TV can work normally.

Because some of the TV remote control is pressed, there will be a general small situation.,Well....But it won't affect the TV, you just need to restart it.

I think it's possible that you didn't turn off the TV.

One of the frequent faults of CRT color TVs. It is necessary to check the degaussing circuit in the machine, and the common faults are the degaussing resistor is damaged by the open circuit, the degaussing resistance or the pin of the degaussing coil is soldered, and the degaussing coil is broken. If the faulty component is found, it will be replaced according to the original specifications, and the machine will be turned off after half an hour, and then turned on after half an hour, so that there are two switches on and off, and there is a piece of red in the upper left corner; There is a yellow patch in the lower right corner, and the fault is eliminated.

If it's not a stereo or something magnetic near the TV, it's because your TV has recently moved its position, for example, from the horizontal to the living room.

TVs have a degaussing function, which can be automatically demagnetized every time you turn on and off, maybe it will be better after a while. If there is still this problem after a period of time, you should consider whether the degaussing resistance is broken, or the degaussing function of the TV is not good, then use a degaussing device to eliminate it (very simple).

I'm not a professional maintenance person, but I've seen a lot, and I synthesized the opinions of the above three people.