At present, the common projectors are used in the following three ways: one, the fixed plane of the conference room is used; the second, the indoor ceiling is used for lifting; and the third is used for carrying out.
Three different types of projectors have their own features for maintenance.
1. Fix the projector used in the fixed plane of the conference room. Pay attention to the connection and avoid accidentally knocking off the power supply and causing abnormal shutdown. When the projection screen is tilted or deformed, the legs of the machine can be adjusted and the position is fixed to make the picture normal; when the machine is working, do not block the vents and affect the heat dissipation of the machine.
2. Lifting and use Because most projectors have a screen inversion function, this function allows the projector to be mounted on the top of the house. For projectors used for indoor ceiling hoisting, the following points should be specially noted: Calculate the distance between the projector and the screen (determined by the screen size); the upper edge of the wall hanging on the screen should be attached to the projector lens At the same horizontal line; the center point of the projector lens is on the same vertical line as the center point of the projection screen; select the appropriate mounting hanger; install the fixing screws and bolts in place; adjust the trapezoidal shape of the projection screen after installation; , to ensure that the power is turned off.
3, portable use of the projector often used to carry out, the machine often has to be moved, and connected to different input devices. In this case, there are the following points to note: When moving the projector over a long distance, be sure to pay attention to the packaging of the machine. When the projector is checked and shipped, it should be packed in the original shockproof carton; the user can carry a rigid package when carrying it; when carrying it, the projector can be installed in a soft backpack; when moving the projector, be sure to take it lightly. Dispose of it gently to avoid damage to the lens caused by vibration. During mobile use, pay attention to the effects that power and different input device performance may have on the projector. If you need the projector to be used frequently, then when purchasing, consider purchasing a compact product with a dedicated carrying case.
In order to ensure the normal operation of the projector, regular inspection and maintenance are essential. For example, to clean the ventilation screening program, the projector's casing usually has a slot or opening. This is a design for the ventilation of the projector. The air inlet has an air screening program. When the projector is working, it is used to filter dust. And after the use of contaminants for a long time, the slot in the screening program will accumulate dust. To ensure the normal operation of the machine, it is necessary to regularly suck the suction port with the vacuum cleaner. When the machine is working, do not block the ventilation fan. Cleaning the ventilation screening program is especially important for projector maintenance for hoisting. Special attention should be paid to dust protection during engineering installation and subsequent user use.
The most common problem with the home computer is that the power is turned off improperly. When the power button is pressed, the projector fan will operate for a period of time. Waiting for the temperature inside the machine to drop to a safe level, the fan will be turned off and the power is turned off. Turn off the main power. When replacing the projector lamp, please replace it with gloves. If there is oil in the hand, it will affect the life of the lamp.
In addition, users should find out what to do after the projector is damaged. Users should never repair and open the body by themselves (to avoid unnecessary troubles). It needs to be sent to a special repair center for inspection and repair by professionals.
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