YDIT details the use and routine maintenance of the projector

Source:YDIT 誉德 Release time:2019/9/18 10:58:58 Views:1268

 

Projector (paperless conference system, paperless office system, ultra-thin integrated lifter), also known as projector, is a device that can project images or video onto the screen, and can communicate with the computer through different interfaces. VCD, DVD, BD, game console, DV, etc. are connected to play the corresponding video signal. Projectors are currently widely used in homes, offices, schools and entertainment venues, depending on the way they work, with different types of CRT, LCD, DLP. So what should we pay attention to in the daily use and maintenance of the projector? (Paperless conference system, paperless office system, ultra-thin one lift)

(1) Try to use the original cable and wires of the projector.
(2) Keep the projector away from water or moisture when using it.
(3) Pay attention to dust prevention, and take dust-proof measures after consulting professionals. The polysilicon LCD currently used is generally only 3.3cm (1.3in), and some even only 2.3cm (O.9in), and the resolution has reached 1024X768 or 800X600, which means that each pixel is only 0.02mm, dust particles are enough to put it Block. Since the projector LCD panel is fully cooled, a special fan is generally air-cooled at a flow rate of several tens of liters of air per minute. After the high-speed airflow passes through the filter dust net, it may be entrained with tiny dust particles, which rub against each other to generate static electricity. Adsorbed in the optical system.
(4) Keep the projector away from heat sources during use.
(5) Pay attention to the nominal value of the power supply voltage, and do not connect the ground wire and power supply polarity of the machine.
(6) Users are not allowed to repair and open the body by themselves; try to use the original accessories when replacing internal cables and parts.
(7) When the projector is not in use, the power must be turned off.
(8) If the projector is in use, unplug the power supply first.
(9) Note that the projector should be cooled first after use.
(10) The movement of the machine should be handled lightly, and the packaging should be protected from vibration during transportation.
(11) Always clean the filter screen at the air inlet and clean it at least once a month.
The current polysilicon LCD panel is still relatively high temperature. Therefore, the newer model is equipped with a temperature sensor near the LCD panel. When the air inlet and the filter net are blocked and the airflow is not smooth, the temperature inside the projector will rise rapidly. The temperature sensor will alarm and cut off the light source circuit. Therefore, it is necessary to keep the air inlet open and clean the filter in time. The projector installed on the ceiling should ensure ventilation and heat dissipation in the upper space of the room. Do not vibrate or move the projector under the power on condition to prevent the bulb from bursting. After the use is stopped, the power cannot be disconnected immediately. The machine should be automatically stopped after the heat is discharged. The damage caused by the power failure when the machine is in a hot state is one of the most common reasons for the projector to be repaired. In addition, reducing the number of starts is beneficial to lamp life.
(12) It is strictly forbidden to plug and unplug the cable. The signal source and the projector power supply should be grounded at the same time. When the projector is in use, some users require a large distance between the signal source and the projector. For example, the ceiling mounted projector is generally more than 15m away from the signal source, and the corresponding signal cable must be extended. As a result, the signal of the input projector is attenuated, and the projected picture may be blurred and tailed or even shaken. This is not a malfunction of the projector and will not damage the machine. The best way to solve this problem is to add a signal amplifier after the signal source to ensure that the signal transmission is more than 20m without problems. In addition, if there is a phenomenon that the output image of the projector is unstable and fluctuating, it may be that the projector power signal is not in common with the signal source power signal. To do this, plug the projector and source device power cord into the same power strip. (Paperless conference system, paperless office system, ultra-thin one lift)