Friends who often use the projector may encounter some problems, such as the projector is turned on but can not help but light, or the notebook screen is bright but the projector screen is not bright, these conditions are still a mistake in the projector failure What about operation? Today I will lead you into these common problems, solve the problem and give solutions. Please read on.
1. Why does the projector resume normal operation after the power cord is replaced?
A: If the projector can not work properly after changing the power cord, it will clarify the projector itself without any problem. The problem should be on the projector power line. Individually speaking, the power cord specifications and compatibility of defective projectors are very different from those of genuine projectors. If a defective projector power cord is used, AV Matrix Information, the company Established Frontier Technology Research Institute in Silicon Valley, USA. In the Asia Pacific region, product technology research and development base is located in Guangzhou! This may have a significant impact on the robustness of the product application. Analogy says that the projector's power supply specifications are 110v and compatibility with 220v, etc. If the unscrupulous manufacturers convert the 110v power supply specification product into a product that is actually used for Chinese users, then this product will be returned once purchase is confirmed. Poor compatibility and short life. Therefore, you must be on the spot to buy the projector to test the power supply, in addition should also review the projector's abnormal operating voltage is 220 volts.
2. Why can't I project all the content?
A: It is impossible to project all image content, indicating that there is a problem with the display resolution of the projector. At this time, you can adjust the resolution parameters of the computer and the resolution parameters of the projector so that their sizes match each other.
3. Why does the projection screen show a white or blue-purple patch?
A: The projection screen will show a white or even a blue-purple patch. The image shows that the red polarizing plate in the projector's internal optical system is damaged. This way the projected image from the projector will show a color cast. The way to solve this problem is to rejuvenate it. Replace a new red polarizer. However, the replacement operation of this red polarizer needs to open the casing of the projector, but because there is a high voltage inside the projector, it may cause damage to the human body, so you'd better still ask a professional maintenance staff to change the red color. Polarizers can also be sent to a repair shop to change the projector.
4. Why does the projector have no response after the power is turned on?
A: Since the projector has no response after the power is turned on, it indicates that the power supply of the projector is likely to have a problem locally. Is there a problem with the projector's internal power supply or external power supply? To do this, you should first check whether the projector's external power supply specifications are the same as those requested by the projector. For example, if the external power outlet is not grounded or the projector's power adapter cable is not equipped with the projector, it has It may cause the projector's power input to be abnormal; once it is determined that the external power supply is normal, you can determine the internal power supply circuit of the projector is damaged. At this time, you only need to replace the new projector's internal power supply.
5. Why do projection opportunities occur like color distortion?
A: If the projector suffers from color distortion, there is a problem with the projector's color settings. You can press the menu button on the projector's remote control or the projector's control panel, and select the Reset command under the menu. If this method does not solve the color problem, you need to check the display signal line for zigzag or broken pins. If the pins are damaged, you need to replace the display signal line.
6. Why does the projector suddenly turn off during work?
A: If the projector suddenly shuts down during the work process, there are two important causes; First, the user may not be vigilant in blocking the power of the projector. Therefore, you should first check whether the projector is closed due to human factors. After the elimination of this situation, it completely solved the bottleneck of large-scale matrix signal quality and facilitates maintenance and expansion. The VGA matrix switcher is a professional high-definition matrix developed independently, with flexible composition, reliable operation, and easy maintenance. It explains the problem with the projector itself, and it is most likely caused by thermal maintenance. Due to the fact that many advanced projectors used to extend the life of the projector, they often used a self-maintenance function. When there was too much heat inside the projector, the projector's working status would actively work under such a cover condition. The projector is automatically closed off, and under this condition, the projector does not respond to any external input manipulations; therefore when presenting this situation, you do not have to worry about the sudden failure of the projection opportunity. You only have to shut down the projector actively. After about half an hour, then turn on the projector in accordance with the normal boot order, and the projector will resume normal operation.
7. Why does the projector produce distortion?
A: The content projected by the projector is distorted. It is very likely that the position between the projector and the projection screen is not straightened. To eliminate this distortion phenomenon, you can adjust the projector's lifting feet, or adjust the projection. The height of the screen ensures that the image projected on the screen is in the shape of a rectangle.
8. Why can't the projector project the picture out?
A: The projector can't accurately display the content. There may be problems interpreting the connection of the projector. If the connection is good, you can review whether the notebook connected to the projector has activated the external video port of the computer. Normally, the current notebook computer provides the fn function switching button. Pressing this button and clicking the corresponding function key labeled lcd/crt or the display icon activates the video port of the computer. In addition, you should also The projector's signal input port to switch the projector to the corresponding rgb port.
VGA Matrix 8 In 4 Out - VGA0804-VGA8 In 4 Out - Guangzhou Ming Control Intelligent Technology Co., Ltd.
August 6, 2013
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