projector
The projector itself is faulty, most of which are caused by thermal protection. Because many high-end projectors now use a self-heat protection function in order to extend the life of the projector. When the internal temperature of the projector is too high, the projector will automatically heat protection. The projector will be automatically turned off and any operation of the projector will be disabled. Failure; at this time, as long as about half an hour after the projector automatically shuts down, and then start the projector according to the normal startup sequence, the projector can resume normal operation.
The troubleshooting methods for the maintenance of the projector
The projector does not start
If the projector does not start, it means that the power circuit of the projector is faulty. This situation is divided into the internal power supply of the projector and the external power supply. First check whether the external power supply specification of the projector meets the projector standard, for example: the external power socket is not grounded or the projector The power cord used is not provided with the projector, which may cause the projector’s power input to be abnormal; once the external power supply is determined to be normal, it can be concluded that the internal power supply circuit of the projector is damaged. At this time, the projector needs to be repaired or replaced. The internal power supply of the instrument.
Image distortion
The image projected by the projector is distorted and distorted. It is likely that the position between the projector and the projection screen is not aligned. At this time, you can adjust the elevator feet of the projector or adjust the height of the projection screen to ensure that it is projected on the screen. The image is rectangular.
The troubleshooting methods for the maintenance of the projector
Image color cast
A white or even blue-violet patch in the image indicates that the polarizer in the internal optical system of the projector is damaged. In this way, the image projected by the projector will appear color cast. At this time, a new polarizer needs to be replaced. However, the replacement operation of this kind of polarizer needs to open the casing of the projector. Due to the high voltage inside the projector, it is better not to disassemble it by yourself to avoid danger or human failure. The projector maintenance personnel need professional projector maintenance.