【 Weak current College 】 projector maintenance knowledge made of large broadcasting---Power By 【 China power house network 】

Preface to the first:

Multimedia projector is a set of precise optics, electronic, mechanical, in one of the high-tech products, projection is a highly sophisticated electronic products, its collection optics, liquid crystal or DMD, electronic circuit technologies. Because there is no professional guidance, this time if a but misapplied or not getting good care it will price expensive projector products cause catastrophic losses.

As the popularity of teaching, more and more schools are in the classroom is equipped with projector, computer, display, audio and other multimedia devices, multimedia equipment is most precious in the projector. Because teaching needs, the use of multimedia teaching teachers increase, in order to ensure the correct use of multimedia equipment, teaching work. Maintenance of good projector is important in order to prolong the life of the projector. For example, periodically clean the dust network, regular professional engineer clean projector optical systems, cooling systems to minimize the overhead projector failure rate, extended service life, so that each projector save considerable maintenance and spare parts costs. Doing routine maintenance of projector and maintenance is very important for the projection function lasting service to you, continue to realize more value, reduce application and action for consumables and reducing costs is critical.

The importance of maintenance for projector, we summarized points on the projector used in the process it is necessary to pay attention to problems in the hope that in the actual operation to note about the problems that can make you love machine life lasts longer.

Second: the first thing to note, "three"

The first thing to note, "three": dust-proof, shock-proof, moisture-proof

Dust-proof: it is no exaggeration to say that the dust should be the number one enemy of projector. Because of the environmental impact of dust really is everywhere, so be sure to do a projector dust. Projector's storage environment is especially important that the machine should be placed in the dust generation in small places, refused to hold places, etc from the greatest degree of eliminate and reduce external reasons for projectors.

Remove the dust, dust for projector is a priority, in particular the present the projector product for the heat is very seriously, so some of the products in the fuselage has a cooling fan or slot and so on design, dedicated fan to dozens of litres per minute flow of air to air cooling, which are more favourable for thermal and ventilation products. However, shortcomings are immediately apparent, as high-speed air filtered dust filters after possibly entrainment tiny dust particles, their mutual friction generate static and adsorbed on the cooling system, this will have an impact on the projection screen. Furthermore such a long time, the dust will focus on a set in dust networks, cooling fans and some surrounding areas periodically clean debris, so they played for projectors are well protected. The general approach will be some design of filters it down with a brush, cleaning, light, for the cooling fan and so also applies, in this way you can avoid affecting the cooling fan and dust-proof performance, regular cleaning is very important to note that the key users.

There is dust for lens, lens for a projector, but the core part, this is intended for use LCD technology of projector products, if the process inadvertently will undoubtedly have disastrous consequences. Poly-silicon LCD panels generally only 1.3, some even only 0.9 inches, the camera see dust on a regular, if too many of these are bound to dust can affect the sharpness of the projected out panels and effects. So the lens cleaning it is critical that the projector's lens and camera lens surface, can be used photographic equipment dedicated lens paper to clean, because the lens is extremely easy to scratch, so should never use a damp cloth and wipe, otherwise will greatly affect the future of the drop shadow effect that really have no taste loss, also note the shutdown immediately after put the lens cap biocide.

Earthquake preparedness: projector is a highly sophisticated electronic products, so for earthquake protection also to pay great attention. Especially characterized by portability products and even more so, since this type of projector in mobility on relatively frequently, should follow the handle with care's operation principles.

Overall, it is important to prevent a collision for projector strong, extrusion and vibration. From the appearance, such collision would create the appearance of the surface for the projection of Polish Division, for lens surface will have a certain risk. Extrusion or collision from the inside to see the effect seems to be more serious, strong collision causing LCD tablet of transposition, which will significantly affect the projection is the convergence of LCD, resulting in color deviation. The optical system of the lens, reflector will also have the effect of deformation or damage, and the effect of image projection lens in impact makes rail damage, resulting in death, even the camera card cracked lens cannot be used.

Moisture-proof: it is also due to the projector is easy to projection environment moist air attacks, according to a information on normally, the projector working air flows of approximately 45 per cent--60 percent, if the air is humid degrees above or below this range parameter values, the projector performance appears unstable conditions, for damage to the machine would be very serious.

This is ideal for use in harsh environment of the region to be clear, because like a southern region of China to the rainy season, when the humidity is considerably more generally over 80 per cent, if the humidity of the environment, the moist air will cause the projector internal electronic components or circuit board, have a short circuit, causing the projector does not make the projection. If you must in this wet situations are projected work, appropriate for the environment as a handle, such as with suction device, such as minimize air humidity, and damaging to a minimum.

If in this humid environment projector products, placement is more knowledgeable. The user should be able to find a good ventilation environment of areas to ensure that the projection of the air in the environmentCapable of forming convection, so even if not used as the location of ventilation and moisture are relatively small, not on the machine have greater impact. Otherwise, many parts of the projector is also susceptible to corrosion off so easily cause internal circuits because of the bad to be stable for the projection of output.

Above this point is the most important projector maintenance is one of the so-called "three", dust, humidity, and shock. If you can do the above three important protection, extending the life of the projector will play a very important role. Get rid of this important element of the "three", in other important parts and operation customarily attention and maintenance, but also for the maintenance of the projector to positive role.

Third: to properly maintain the lamp life is also critical

Because the price is not cheap, projector bulbs are the major supplies, generally a projector bulb price good dedicated to a few thousand dollars, in accordance with the consumer now standards should say quite expensive, so if you can be good for the lamp, you will be maintained for users to save a rather small expenses.

Now generally is the most commonly used approach is to reduce the current to the projection lamp current on impact. Since opening the opportunity to have a significant impact in the current, if the bulb frequent were shock, then be for the projection lamp service life have fatal injury, so the user should be possible to reduce the number of times, so that the power to impact current will not be regular for light bulbs, led the life of the lamp can be further extended.

Fourth: the heat, ventilation may extend the life of projection

Previously mentioned in a damp environment maintenance points, in the dry and the maintenance of the environment is also important. First, the heat, the heat is a core part of projector aging life shortening of the main reasons for this are less like the heat of the LCD projector. Although there are many projectors have increased for the body's own heat dispersion, regard design, but this step the user still have caused some concern.

In addition, because of our vast area, different environments with different temperature environment users are likely to encounter. In some high-temperature areas, must be noted that the airflow of the projector, if poor circulation vents, heat dissipation is hindered, heat will not have the control in a timely manner, so that not only will accelerate bulb aging effect on core parts are also very large, more serious also appears bulb danger of explosion.

Fifth: the shutdown available do not slip

In fact, reasonable maintenance shutdown and bulb also has close links, projector operation is finished on projection projectors will not be able to immediately shut down. Because the fuselage built-in cooling fan will continue to build-in thermal shutdown immediately if it, heat could not be taken away immediately, for internal components.

In order to allow it to cool the projector cannot be closed so that the user or the related staff will not be able to leave at once, give users a great deal of inconvenience, is extremely not humane. To this end, the manufacturer in this regard is spent efforts, many projector manufacturers to address this situation, the introduction of a "zero-second shutdown" and "the gateway that is go" functional products, such as Epson, Sony, plus, etc. brand this feature product!

Summary: as the projector is not just a high-precision electronic products, and prices are fairly expensive, whether you apply to the area, for this precious equipment maintenance is necessary rather. The above mentioned points are in the projector maintenance is very important to master the above points the projector so that applications can get comprehensive protection, which can dramatically reduce the cost, longer service life. However it is worth noting that the consumers in different work environments, product type, the function of different projector maintenance also cannot almost blindly, or according to their own specific product maintenance and maintenance.