Among the many computer accessories, the longest-lived part is the monitor. Take the author as an example. My computer has been upgraded many times, but the 15-inch monitor that has been staying with me is the one that has been around. Because the monitor is easily affected by environmental factors such as temperature, humidity, dust, electromagnetic interference, and static electricity during long-term use, causing damage to varying degrees or causing failure. Therefore, correctly using the monitor and paying attention to the daily maintenance and maintenance of the monitor are important factors that determine whether it is "long-term".
1. Humidity cannot be too high or too low
The humidity in the monitor environment should be kept between 30% and 80%. Once the indoor humidity is higher than 80%, condensation will occur inside the monitor. Power transformers and other coils are prone to leakage after being damp, and may even cause mold and disconnection over time. In addition, the high-voltage components of the monitor are also very likely to cause discharge when the humidity is too high. The components in the machine are easily rusted and corroded when they are damp, and the circuit board will be short-circuited when severe.
On the contrary, when the indoor humidity is ≤30%, it will cause electrostatic interference to the mechanical friction part of the monitor, and the possibility of internal components, especially high-voltage coatings, is increased, affecting the normal operation of the monitor, and in severe cases, it will also cause injury to the user and scrapped the monitor.
Therefore, the monitor must be protected from moisture in the use environment. Monitors that are not used for a long time can be powered on regularly for a period of time to allow the heat generated during the monitor to drive out the moisture in the machine. At the same time, in order to prevent static electricity, it is recommended to ground the computer, especially in dry climates in the north.
2. Control indoor temperature
As a major heat source of the display, the working performance and service life of the display tube will be greatly reduced in environments with too high temperatures. Some solder joints of the virtual solder may open circuit due to melting and falling off of the solder, making the monitor unstable operation. At the same time, components will also accelerate aging, which will cause the monitor to "strike" at the least, and at worst, it may break down or burn down other components.
Therefore, leave enough space around the monitor to "breathe". In hot summers, it is best to place the monitor in an air-conditioned room, or blow it with an electric fan.
3. Avoid direct light
If the monitor is exposed to strong light, it is easy to accelerate the aging of the imaging tube phosphor over time and reduce the luminous efficiency (in a strong light illumination environment, the eyes are also very susceptible to the reflected light on the screen when facing the monitor). Therefore, users should not place the monitor in a place where sunlight is strong. It is best to place the monitor in a place where light cannot be directly exposed to or to adjust the light in the room softly.
4. Prevent dust
Since the voltage in the monitor reaches 10kV to 30kV, it is very easy to attract dust particles in the air, especially when the power is turned on and off. A large number of maintenance practices have proved that the threat of dust to computers is very obvious. Working in a dusty environment, the printed circuit board will absorb dust, and the deposition of dust will affect the heat dissipation of electronic components, causing the temperature of components on the circuit board to rise, resulting in leakage and burning the components. Dust may also absorb moisture, corrode the electronic circuits inside the monitor, causing some inexplicable problems. Therefore, although the dust is small, the harm to the monitor should not be underestimated.
In order to effectively prevent dust hazards and ensure that the monitor is used in a relatively clean environment, we should purchase a special dust cover for the monitor. We should use the dust cover in time after each use (be careful not to cover it immediately after shutting down, because the monitor needs a certain time to dissipate heat after shutting down). At the same time, we should also do more cleaning, carefully wipe the center of the screen with a soft dry cloth, spiral outward. Incorrect wiping methods will leave scratches on the screen, causing permanent damage. In addition, you must not wipe the display with chemical solutions such as alcohol, nor do you use rough cloth or paper to wipe the display screen, nor do you spray liquid directly onto the screen (Note: All cleaning work must be done after unplugging the power cord).
5. Avoid magnetic field interference
Electromagnetic field interference refers to the occurrence of voltage and current that should not appear in the circuit or environment. The main sources of electromagnetic interference include power supplies, components, wires, connectors, cooling fans, fluorescent lights, lightning and electrostatic discharges, as well as household appliances that consume a lot of power, such as TVs, refrigerators, and electric fans. If they are too close to the monitor, these devices may cause electromagnetic interference to the monitor over time.
In use, we should place the monitor far away from other electromagnetic fields (the most typical example is not to place the PC speaker too close to the monitor, even antimagnetic speakers should be paid attention to). If conditions permit, you can often use the demagnetization function on the monitor to demagnetize.
In addition to the above precautions, in our actual use, there are many small areas that deserve high attention from readers. In fact, the biggest destructive factor for the display lies in the user itself. Some of our bad habits will harm the display much more than the damage caused by environmental factors to the display.
1. Do not pile up debris on the monitor to avoid affecting the aging of the normal heat dissipation and acceleration components of the monitor.
2. When pressing the function knob on the monitor panel, be slow and steady, and do not turn hard to prevent the knob from being damaged.
3. If the cable of the monitor is too long, it may reduce the brightness of the monitor and the rays cannot be focused.
4. Although the operating voltage of the monitor is relatively large, it may also cause damage to components due to instantaneous high-voltage impact, so a socket with a fuse should be used. If conditions permit, it is best to install a UPS (uninterruptible power supply).
5. During use, the display brightness can be slightly reduced (appropriate), which can slow down the aging rate of the phosphor in the imaging tube.
6. The refresh rate of the monitor is set appropriately, and there is no need to use too high refresh rate to extend the service life of the monitor.
7. Do not smoke in front of the monitor, as the tar substance in the cigarette will be harmful to the monitor coating.
8. Do not turn on and off the power frequently. The high voltage changes in the switch will have a great impact on the life of the monitor.
1. Humidity cannot be too high or too low
The humidity in the monitor environment should be kept between 30% and 80%. Once the indoor humidity is higher than 80%, condensation will occur inside the monitor. Power transformers and other coils are prone to leakage after being damp, and may even cause mold and disconnection over time. In addition, the high-voltage components of the monitor are also very likely to cause discharge when the humidity is too high. The components in the machine are easily rusted and corroded when they are damp, and the circuit board will be short-circuited when severe.
On the contrary, when the indoor humidity is ≤30%, it will cause electrostatic interference to the mechanical friction part of the monitor, and the possibility of internal components, especially high-voltage coatings, is increased, affecting the normal operation of the monitor, and in severe cases, it will also cause injury to the user and scrapped the monitor.
Therefore, the monitor must be protected from moisture in the use environment. Monitors that are not used for a long time can be powered on regularly for a period of time to allow the heat generated during the monitor to drive out the moisture in the machine. At the same time, in order to prevent static electricity, it is recommended to ground the computer, especially in dry climates in the north.
2. Control indoor temperature
As a major heat source of the display, the working performance and service life of the display tube will be greatly reduced in environments with too high temperatures. Some solder joints of the virtual solder may open circuit due to melting and falling off of the solder, making the monitor unstable operation. At the same time, components will also accelerate aging, which will cause the monitor to "strike" at the least, and at worst, it may break down or burn down other components.
Therefore, leave enough space around the monitor to "breathe". In hot summers, it is best to place the monitor in an air-conditioned room, or blow it with an electric fan.
3. Avoid direct light
If the monitor is exposed to strong light, it is easy to accelerate the aging of the imaging tube phosphor over time and reduce the luminous efficiency (in a strong light illumination environment, the eyes are also very susceptible to the reflected light on the screen when facing the monitor). Therefore, users should not place the monitor in a place where sunlight is strong. It is best to place the monitor in a place where light cannot be directly exposed to or to adjust the light in the room softly.
4. Prevent dust
Since the voltage in the monitor reaches 10kV to 30kV, it is very easy to attract dust particles in the air, especially when the power is turned on and off. A large number of maintenance practices have proved that the threat of dust to computers is very obvious. Working in a dusty environment, the printed circuit board will absorb dust, and the deposition of dust will affect the heat dissipation of electronic components, causing the temperature of components on the circuit board to rise, resulting in leakage and burning the components. Dust may also absorb moisture, corrode the electronic circuits inside the monitor, causing some inexplicable problems. Therefore, although the dust is small, the harm to the monitor should not be underestimated.
In order to effectively prevent dust hazards and ensure that the monitor is used in a relatively clean environment, we should purchase a special dust cover for the monitor. We should use the dust cover in time after each use (be careful not to cover it immediately after shutting down, because the monitor needs a certain time to dissipate heat after shutting down). At the same time, we should also do more cleaning, carefully wipe the center of the screen with a soft dry cloth, spiral outward. Incorrect wiping methods will leave scratches on the screen, causing permanent damage. In addition, you must not wipe the display with chemical solutions such as alcohol, nor do you use rough cloth or paper to wipe the display screen, nor do you spray liquid directly onto the screen (Note: All cleaning work must be done after unplugging the power cord).
5. Avoid magnetic field interference
Electromagnetic field interference refers to the occurrence of voltage and current that should not appear in the circuit or environment. The main sources of electromagnetic interference include power supplies, components, wires, connectors, cooling fans, fluorescent lights, lightning and electrostatic discharges, as well as household appliances that consume a lot of power, such as TVs, refrigerators, and electric fans. If they are too close to the monitor, these devices may cause electromagnetic interference to the monitor over time.
In use, we should place the monitor far away from other electromagnetic fields (the most typical example is not to place the PC speaker too close to the monitor, even antimagnetic speakers should be paid attention to). If conditions permit, you can often use the demagnetization function on the monitor to demagnetize.
In addition to the above precautions, in our actual use, there are many small areas that deserve high attention from readers. In fact, the biggest destructive factor for the display lies in the user itself. Some of our bad habits will harm the display much more than the damage caused by environmental factors to the display.
1. Do not pile up debris on the monitor to avoid affecting the aging of the normal heat dissipation and acceleration components of the monitor.
2. When pressing the function knob on the monitor panel, be slow and steady, and do not turn hard to prevent the knob from being damaged.
3. If the cable of the monitor is too long, it may reduce the brightness of the monitor and the rays cannot be focused.
4. Although the operating voltage of the monitor is relatively large, it may also cause damage to components due to instantaneous high-voltage impact, so a socket with a fuse should be used. If conditions permit, it is best to install a UPS (uninterruptible power supply).
5. During use, the display brightness can be slightly reduced (appropriate), which can slow down the aging rate of the phosphor in the imaging tube.
6. The refresh rate of the monitor is set appropriately, and there is no need to use too high refresh rate to extend the service life of the monitor.
7. Do not smoke in front of the monitor, as the tar substance in the cigarette will be harmful to the monitor coating.
8. Do not turn on and off the power frequently. The high voltage changes in the switch will have a great impact on the life of the monitor.