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1, the use of projectors:
Most projectors must dissipate heat when they are turned off. They cannot be used to turn off the main power supply. The projector turns on and off normally, and it can be used for a longer time.
2, thermal inspection:
When the projector is in use, it must be noted that whether the air inlet and the air outlet are kept unblocked ensures that the heat can be dissipated in time.
3, lens care:
The projector often sees dust on the lens. Actually, it does not affect the projection quality. If it is really dirty, it can be wiped with lens paper.
4, filter cleaning:
In order to make the projector have a good use, please clean the filter regularly (filter usually at the air inlet), the cleaning time depends on the environment, the general office environment, about half a year to clean once.
5, connecting the projector provides a lot of interfaces, so there are a lot of wiring, when connecting the signal line, you must pay attention to whether to take the right line, plug the hole in order to reduce the failure.
Second, the projector common troubleshooting:
1, light bulb:
Usually the projector has an action but the screen is not projected. It may be a problem with the lamp. Take out the lamp to see if there is any damage or contact the manufacturer's maintenance department.
2, power supply:
If the main power supply is dead, check the power supply for any problems. If there is no problem, the power supply is damaged. Contact the manufacturer's maintenance department.
3, cast image color cast:
Check the VGA cable first to see if it is plugged in or if the pin of the connector is broken. If not, it may be a problem with the optical system. Please contact the manufacturer's maintenance department.
4, there is no signal on the screen:
Check the connection cable first, and then check whether the projector signal selection is consistent with the signal source. If there is still no picture, check if the computer is normally transmitting the signal.
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How to maintain the projector? How to solve the problem?
The application of projectors in daily life is already very common. Different applications in different industries have different requirements for the use of projectors. In general, projectors are not always used, and their service life is longer. In the long-term use of the projector, it is inevitable that there will be some problems, and doing a good job of maintenance can reduce the occurrence of faults and ensure the projector's performance and life. First, the maintenance of the projector points: