The color of my home TV is seriously incorrect. After checking the information on the Internet, I learned that this is due to the magnetization of the TV. Is there any simple way to degauss the TV? Today, the author came up with a few common ways to learn how to degauss the TV.
TV magnetization reason
In normal circumstances, the television can automatically degauss, but when the television is automatically degaussed when the television encounters strong external magnetic field interference, the circuit components of the television will be magnetized again by the external magnetic field. The remanence of the television in the process of demagnetization may also result in the magnetization of the internal magnetism of the television. The magnetization of the TV can easily cause the magnetization of the TV display tube, and the color and garbled colors of the TV screen appear.
![]()
194236s5wswhd4ec3w5c92.jpg" border="0" alt="" />
Method of degaussing a television
1, remove the magnetic material
The TV may be magnetized simply because of interference from magnetic objects on the edges. First check if there are magnetic objects around the TV, such as: tape recorders, speakers, speakers, magnets and so on. If any, please remove the magnetic object and keep it 2 meters or more away from the TV.
2, multiple switch TV several times
If the user always uses a remote control to turn off the power, if the power of the TV is not cut off for a long time, the degaussing resistance inside the camera is always in a heating state. The degaussing of the screen cannot be performed in time, resulting in magnetic infection and color spots. At this time, as long as the television's power switch is turned off or the power plug is unplugged, after half an hour the degaussing resistor is cooled and then plugged in, the general problem can be solved. If you can't do it at one time, it can be better to try it several times.
3, turn the TV direction
If it is due to the magnetic field caused by the Earth's magnetic field, we can turn the direction of the TV set.
4, go to the market to buy degaussing tools
The general electronics market will have special degaussing tools that are easy to use. Buy a degaussing tool, such as a degaussing bar, press the degaussing bar switch against the monitor, hold the degaussing bar toward the front of the monitor, and then slowly leave the display (that is, getting farther from the monitor). Removed, so that you can use the monitor. (Be careful not to hold it down for long periods of time. This will burn the degaussing bar.)
5, the internal degaussing circuit has failed
If the degaussing resistor in the TV fails, causing the demagnetization to be deactivated every time the power is turned on, then it is necessary to repair it.
TV degaussing principle
When a general television is in the process of degaussing, its degaussing circuit is made up of two parts, they are the degaussing coil and the degaussing resistance, respectively. The degaussing resistance of the television is a kind of non-linear resistance, we usually call it "PTC resistance". The Curie point of the degaussing resistance of a television is generally several tens of degrees, and its blocking at room temperature is generally a dozen or a few tens of euros.
The TV will have a large current through the degaussing circuit of the TV during the booting process, and generate a degaussing magnetic field in the degaussing circuit. When the degaussing magnetic field stops working, there will be residual current in the PTC resistance. In the shutdown process, the residual current will magnetize the kinescope at the moment of shutdown. This phenomenon is very harmful to the television phenomenon tube. Therefore, when the television is turned on, the degaussing will be completed, and the circuit and the power supply will be disconnected to avoid the magnetization of the television.
TV magnetization reason
In normal circumstances, the television can automatically degauss, but when the television is automatically degaussed when the television encounters strong external magnetic field interference, the circuit components of the television will be magnetized again by the external magnetic field. The remanence of the television in the process of demagnetization may also result in the magnetization of the internal magnetism of the television. The magnetization of the TV can easily cause the magnetization of the TV display tube, and the color and garbled colors of the TV screen appear.
Method of degaussing a television
1, remove the magnetic material
The TV may be magnetized simply because of interference from magnetic objects on the edges. First check if there are magnetic objects around the TV, such as: tape recorders, speakers, speakers, magnets and so on. If any, please remove the magnetic object and keep it 2 meters or more away from the TV.
2, multiple switch TV several times
If the user always uses a remote control to turn off the power, if the power of the TV is not cut off for a long time, the degaussing resistance inside the camera is always in a heating state. The degaussing of the screen cannot be performed in time, resulting in magnetic infection and color spots. At this time, as long as the television's power switch is turned off or the power plug is unplugged, after half an hour the degaussing resistor is cooled and then plugged in, the general problem can be solved. If you can't do it at one time, it can be better to try it several times.
3, turn the TV direction
If it is due to the magnetic field caused by the Earth's magnetic field, we can turn the direction of the TV set.
4, go to the market to buy degaussing tools
The general electronics market will have special degaussing tools that are easy to use. Buy a degaussing tool, such as a degaussing bar, press the degaussing bar switch against the monitor, hold the degaussing bar toward the front of the monitor, and then slowly leave the display (that is, getting farther from the monitor). Removed, so that you can use the monitor. (Be careful not to hold it down for long periods of time. This will burn the degaussing bar.)
5, the internal degaussing circuit has failed
If the degaussing resistor in the TV fails, causing the demagnetization to be deactivated every time the power is turned on, then it is necessary to repair it.
TV degaussing principle
When a general television is in the process of degaussing, its degaussing circuit is made up of two parts, they are the degaussing coil and the degaussing resistance, respectively. The degaussing resistance of the television is a kind of non-linear resistance, we usually call it "PTC resistance". The Curie point of the degaussing resistance of a television is generally several tens of degrees, and its blocking at room temperature is generally a dozen or a few tens of euros.
The TV will have a large current through the degaussing circuit of the TV during the booting process, and generate a degaussing magnetic field in the degaussing circuit. When the degaussing magnetic field stops working, there will be residual current in the PTC resistance. In the shutdown process, the residual current will magnetize the kinescope at the moment of shutdown. This phenomenon is very harmful to the television phenomenon tube. Therefore, when the television is turned on, the degaussing will be completed, and the circuit and the power supply will be disconnected to avoid the magnetization of the television.