subject: Maintenance of the Computer Display [print this page] Maintenance of the Computer Display Maintenance of the Computer Display
Display as the computer's "face", is the main bridge of communication with the computer, but people often focus only on the how to buy it, ignore it after the purchase and maintenance, to monitor the reliability and service life resulting in significantly shortened. According to statistics, 50% of display failures due to poor environmental conditions caused by improper operation or failure due to poor management of about 30%, the real damage because of poor quality or nature of the fault only 20%, showing that environmental conditions and human factors the main cause display failure. Therefore, the user must understand and master the knowledge of the display of the general maintenance and repair methods.
Monitor long-term placement in a variety of complex environment and easily affected by environmental factors including temperature, humidity, cleanliness, electromagnetic interference, static electricity and power supplies.
First, the humidity factor
Humidity impact the display
When the indoor humidity 80% when the possible consequences: humidity 30% ~ 80% monitor can work, but once the indoor humidity above 80%, the monitor will produce condensation inside. Its internal coils for power transformers and other easy to produce leakage after wet, mold may even break the connection; and display area are easy to produce high-pressure discharges; machine components, rust, corrosion, serious cause circuit short-circuit boards.
When the indoor humidity 30%, will display some of the mechanical friction generated static electricity, the internal components of the increased possibility of damage by static electricity, can affect the display work. professional battery : TOSHIBA PA3465U-1BRS battery
How to avoid the dangers of humidity on the monitor?
Display must pay attention to moisture, especially in the rainy season, but to pay attention to this point. Long time do not display, you can power on a regular basis working for some time, to monitor the heat generated when the work will drive out the moisture inside.
Second, the illumination factor
Light impact the monitor
Display by the sun or bright light, a long time, easy to accelerate the aging of CRT phosphor and reduce the luminous efficiency (in the bright light this environment, the face displays the work of the staff, the eyes are also vulnerable to injury).
How to avoid harm to light factors on the monitor?
Method is very simple, is not to display placed in the sunlight strong place; or in the light must pass through the place, hang pieces of dark cloth to reduce its light intensity.
Third, the dust factor
Tiny dust impactthe monitor
As the high-pressure monitors up to 10kV ~ 30kV, easy to attract such a high voltage dust particles in the air, the threat of dust on the computer is clear, a lot of maintenance practices that, in dusty environments, the printed circuit board will absorb dust, the dust will affect the deposition of heat from electronic components to make circuit boards and other components of the temperature rise, resulting in leakage and burned components. Dust may absorb moisture, corrosion, electronic circuits inside the monitor, causing some strange problems. Therefore, although the small size of dust, but the display is unpredictable hazards.
How to remove and avoid the hazards of dust?
First, the monitor should be placed in a clean a clean environment, but the dust is pervasive, so in addition to keep the environment clean, it also should be to monitor the purchase or make a special dust cover, should be promptly after each use with a dust cover cast. Usually clear the dust on the display screen, remember the power should turn off the monitor, you must also unplug the display power and signal cables, and then use a soft, dry cloth to wipe out from the center of the screen, do not use alcohol and the like chemical solution to clean, also can not use rough cloth, paper of all kinds of items to wipe the screen, and do not spray liquid directly onto the screen in order to avoid moisture intrusion inside the monitor. In addition to the display outside, but also used the brush, small vacuum cleaner (Figure 1) often erase the display of dust and dirt on the case, but try not to use water on a damp cloth wipe. Since the internal display high voltage (power off after the ignition coil may still be more than the power), such as to remove its internal dust, must ask professionals to operate, can not secretly turn on the monitor back cover (if the monitor has not had the warranty period, open After the seals, such as problems do not in warranty, oh.), in order to avoid serious consequences.
Fourth, the magnetic field factor
magnetic field causes and potential harm to the monitor?
Electromagnetic interference is a circuit or the environment there should not appear in the voltage and current. Power sources of electromagnetic interference, components, wires, connectors, cooling fans, fluorescent lights, lightning and electrostatic discharge, as well as TV sets, refrigerators, electric fans and other power-around or other appliances, such as unshielded speakers or Phone or pager from the monitor too close to both the existence of electromagnetic fields. These devices generate electromagnetic interference, over time, can display chaos.
How to avoid the magnetic field?
Long-term exposure may be magnetized in a magnetic field or damage the monitor (especially the early displays, and more without the degaussing function), it should be the monitor in a place far away from other fields. Usually subject to conditions, may often use the degaussing button on the display, but note that one should not use it over and over again, can not too much force, otherwise will damage the monitor.Discount battery:JVC gr-1u Battery
Fifth, the temperature factor
temperature What impact will the monitor?
CRT as a display of a major heat source, high ambient temperature in the work of its performance and service life will be greatly reduced, some cold solder joint in the solder joints may be due to melting caused by falling open, so that the display job insecurity, while components also accelerated aging, and ultimately lead to the display ranging from "strike", while in other components may be breakdown or burn.
How to heat, reduce the temperature of the monitor?
Placing the monitor around to leave enough space to let it "breathe." In the hot summer months, as conditions allow, the best place to monitor air-conditioned room, or fan blowing.
Sixth, the use of precautions
1. Be careful not to put their things on the monitor, the monitor may affect the one hand, the normal cooling, two aspects in order to avoid falling debris damage to the machine.
2. Moving the monitor, do not forget the power cable and signal cable unplug, and plug the power cord and signal cable should be shut down to prevent damage to the interface circuit components.
3. In regulating the function of the display panel knob, to slowly and steadily, not a hard switch to turn fierce, to prevent damage to the knob.
4. Plug the monitor power cable or signal cable should be noted that as the display problems are encountered in most of the bad or the environmental impact caused by. If the monitor shows the color will result in poor contact or can not reduction simultaneously. Bending a pin plugs can cause the monitor can not display the contents of heavy, ranging from bias can not display color or a color, and may lead to roll up and down the screen. This problem is very troublesome, because if the correct pins may make the curved pin to break.
5. Frequently display content, such as the same time, can be installed on your computer screen saver to prevent phosphor aging.
6. Displays such as a cable pull too far, may decrease the brightness of the display, and the rays can not focus.
7. If the screen image shake, the most likely reason is the interference of external magnetic field, such as the magnetic field generated by the transformer. Line frequency is too low, the supply voltage is too high, it may cause a sudden no display screen, which happens because the monitor high-voltage protection. When a high voltage protection, you must immediately shut down, such as voltage stability after a few minutes to boot to work again.
8. Although the display of the operating voltage range to adapt to relatively large, but it may be due to the impact caused by transient high pressure component is damaged, they still should be used with the fuse socket. If conditions permit, preferably with a UPS (uninterruptible power supply).
9. Use, can slightly reduce the display brightness (right), can also slow the picture tube filament and phosphor decay.
10. Can be installed in front of a screen for radiation protection devices, as shown in Figure 5, the best selection of lead shielding grounding conductor technology. Good quality products, can prevent over 90% of electromagnetic radiation, and can enhance the contrast of the display, enhanced clarity of display, but also eliminate static electricity and glare, absorb UV light. Thus, not only to protect human health, the display is also good. Cheap replacement battery: PANASONIC cga-du21 battery
Having said that "face" of maintenance, it looks very cumbersome. In fact, as long as usual a lot of interest in our "face" issue, it is difficult to retire.
