【School】 projector weak common set --- Power By use of weak home network 【China】.

<br> projector as one of the expensive office equipment, daily use and maintenance is very important, if not pay attention to detail, often very easy to damage the projector lamp or projector parts, here we have prepared a number of opportunities to use the projector case .to the 10 common problems and suggested solutions are given, we can refer to. .1. .Projector related equipment should be based on the order of switching power supply how to use? .Since the projector is used with other devices, the best order to open the device in accordance with the following: First, if the projector image source is not a computer, the best equipment first open source image; Secondly, if you .When using the projector sound effect you want to get better and have a separate audio equipment, audio equipment, this time should be open; Next, you can turn on the projector, the projector needs to warm up some time to use; for .In most cases, the user is connected to the computer and projector, in which case the final turn on a computer. .If the power is off, you can follow the reverse order. .Although the order does not follow the above may not see any big impact, but long-term stability for the use of the projector, I suggest you best to develop good habits. .2. .Projectors and other equipment, which ports should be connected? .The back of the projector there are many interfaces, and the projector can be connected to it using a lot of equipment, users often do not know what the interface should be used. .Here we summarize the simple, according to the following table, we should be compared when using clear: 3. .How should the projector and notebook and Apple computer connection use? .When using the projector, considerable part of the occasion is connected to a laptop to use. .However, the use of laptop and desktop PC a little bit different on the keyboard to select the projector's image source. .The need to key in the laptop's keyboard set to start the projector and let the image on the laptop display projected out. .As for Apple's Mac systems, but also a little bit different. .4. .Projector in daily use, should pay attention to what? .Projector light bulb at work at a high temperature, and the present projector's internal components of the integrated high volume made more compact. .So for the projector is being used, the heat is a very important issue. .Make the projector in use have a good ventilation conditions, not to the bottom of the projector and the support surface so close, do not place the projector vents at anything, especially books or cloth so as to avoid the ventilation is not .Chang, of heat. .In general there are two projectors in the fan, a suction fan is used to inhale the fresh air outside the projector, the cooling of the projector device; one exhaust fan, used to cool the high temperature after parts .outside air from the projector. .Outside the suction fan has an air filter, will filter out the dust in the air to avoid their entry into the projector interior. .Therefore, we must first ensure that the use of the indoor environment cleaner, followed by regular cleaning of air filters online dust into the air enough to avoid the impact of the cooling effect. .The projector off, we must first wait state was shut down, and so reduce the internal temperature of the projector, the fan stops and then turn off the power switch. .Otherwise, or seriously reduce the life of the projector. .Optical system within the projector is very sophisticated and projector in every factory, to be in a high-precision optical platform to do an accurate calibration, and will be the parameter input to the projector in to the motherboard. .Therefore, the use of the projector can not withstand strong vibration, or one of the location of optical components or components will be damaged, so do not arbitrarily in the course of moving and vibration. .Strictly speaking, due to each projector and the optical part of the circuit board are one to one. .If the projector's optical system has been damaged, the motherboard should be replaced, even if it is still in good condition. .But this is obviously very high cost, and now you know the projector light-light the importance of it! .5. .How to use the projector's keystone correction feature? .Keystone is the lens when the projector optical axis location is not in the horizontal position (the vast majority of users when using the projector are in this case), will produce an image projection screen, the screen appears trapezoidal, not square projection .screen. .At this point you can projector keystone correction to compensate for this defect. .<BR> <BR> 6. .What is the projector to adjust the orbit, the circumstances under which to use? .Projector image source of the signal received through the Main Board of the analytical treatment, will have to open LCD action. .Elements ordered by the light color LCD image is cast on the right. .We can use these as a column of light rail, according to its own track towards the correct destination. .But sometimes the projector does not work, that is not some light rail routes in the right. .At this time, project the image on the emergence of some vertical stripes. .Then press the "Tracking + / -" button to adjust the force of the changes in light marching route, until you are satisfied so far. .7. .What is the projector to adjust the synchronization, the circumstances under which to use? .And the projector to adjust the orbit is similar to the color of the light elements required by the specified time ordered by LCD, so as to project (ie refresh) the correct image. .If the projected image will be blinking, fuzzy, it may be the synchronization of the projector bad. .This time the need to press "Sync +" or "Sync -" keys to adjust, correct synchronization of the projector until the projected results are satisfied. .8. .When should I replace the projector bulb? .Projector is the projector lamp supplies, installation of light bulbs are working to time constraints. .The following happens when the projector lamp should be replaced: The projected image began to darken or projection began to deteriorate; projector at the top of the error indicator to a second frequency of a flashing red light, indicating that although not to the use of light bulbs .life, but should replace the lamp as soon as possible; when the projector lamp life continued use of the time, "LAMP REPLACE" message appears on the screen. .This is the time when the counter inside the projector lamp life began to suggest is coming, even if the current projection is still very good. .9. .Why would the projector color cast of the phenomenon is normal? .In fact, the image projector projecting somewhat similar to the printer, like the three elements of color ink jet printer, the image "print" on the screen. .Board resolution in the projector image processing source signal, will have a little deviation in the signal to restore the image with the color, also with a slightly different image source. .But as long as the deviation is not too large, should be a normal phenomenon. .<BR> <BR> However, if the projected image has a color cast or even serious errors, such as the image projected into the source of the yellow and purple, and it is a hardware failure of the projector. .In another case, the projected images appear on a white bright spot, that is, the projector's LCD panels is broken, causing a lot of light through the LCD projector out of the wrong image. .10. .What is a superposition of features lumen projector? .Some projectors have lumens (brightness) stack feature, if the need to increase the brightness of the projected image, you can use multiple projectors at the same time the projected image. .The projector has a lens in the camera body movement adjustment switch, the projector's image completely overlap. .The projected image of the lumens (brightness) can basically achieve these projectors are the sum of the nominal lumen. .Bright light in the larger places, such as shopping malls, exhibition, etc., this feature is very useful. .<BR>.