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Compared with the grade and performance of cinema projectors, we rarely explore how to maximize the visual effects of your projector. Since the projector's factory settings are not the best setting, its playback effect has a lot to do with ambient light and screen selection. Therefore, scientific adjustment of the projector according to the actual situation of the home theater is very necessary.
Today, there are many software and hardware debugging methods on the market. However, they are expensive and are not recommended for ordinary families. Generally, the basic setup can meet the viewing requirements of home users through the system preset adjustment function.
Below, "A new life of audio and video" will give you a detailed introduction of some basic adjustments of the projector, hoping to help everyone.
Need to pay attention before adjustment
Installation position: The projector and the screen are vertical. The lens and the center of the curtain are in a straight line. When the desktop is projected, the lens is slightly lower than the curled edge of the screen. When lifting, the lens is slightly higher than the curled edge of the screen. 
Equipment connection: Use original standard power cables and signal cables to ensure the quality of signal sources and connected equipment. Try not to use connected equipment (such as frequency dividers).
At the same time, it should be noted that it is best not to extend the signal line more than 10 meters, otherwise it will easily cause tailing, signal jitter and other fault phenomena.
Lamp warm-up: After turning on the projector, warm it up for about a minute on a blue screen before projecting a signal to the projector. 
Tuning resolution: The best image quality can only be obtained if the resolution of the computer output signal is the same as the projector's nominal resolution and the refresh rate is set to 60 Hz.
Video interface: If you connect a DVD player, TV box, etc., try to use high-quality video signal interfaces such as HDMI and DVI, and avoid poor quality interfaces such as S-Video and AV composite terminals. 
First read your projector's instructions carefully to understand what your projector's maximum supported resolution is to match the computer's end. For example, if the projector only supports a resolution of 800×600, and the computer outputs 1024×768 or 1440×1080 video signals, the projector will automatically scale the image to accommodate the projector's maximum projection. Resolution, at this time will seriously reduce the image quality.
Therefore, first of all make sure that your projector is compatible with the maximum supported resolution and the computer's output source to achieve the best projection effect. 
Focal length adjustment
The projector also needs to focus, otherwise the projected image will be blurred.
Before performing focus adjustment, first select the projection distance, move the projector left or right or up and down so that the image is located in the center of the screen or projected onto the wall in an ideal position.
Then adjust the focus ring near the lens so that the image is the most visually clear. 
If the projector has an electric focus function, the whole work becomes relatively simple, and the user only needs to complete the adjustment of the detail in front of the projection screen through the remote controller. In addition, what kind of screen to choose to focus is also exquisite, you can choose the projector built-in focus debugging screen, you can also choose to focus on the test disc dedicated screen. 
Before continuing to analyze the basic debugging of the projector, it is also necessary to pay attention to the adjustment value of most of the current display devices related to the input end. In other words, if the signal is input in HDMI 1.0, the adjusted value is only for the HDMI 1.0 port. If you want to plug in the HDMI 2.0 port, you must reconfigure all the picture parameters. 
Next, you need to adjust parameters such as color temperature, sharpness, color, and brightness. It is recommended that you first adjust the color temperature, then the brightness, then adjust the color, and finally adjust the sharpness in order to achieve a better projection effect.
The general projector adjustment menu is equipped with color temperature adjustment. By adjusting the color temperature, the visual effect of the image can be significantly changed. The average color temperature in China during the year is between 8000K and 9500K. Therefore, the television station uses the viewer's color temperature of 9300K to make photography. But in Europe and the United States, because the usual color temperature is different from ours, we use the average color temperature of about 6000K throughout the year as a reference for the production. Therefore, when we look at those foreign films, we will find that 5600K to 6500K are most suitable for viewing. 
Of course, this difference makes us feel that when we suddenly see the screens of computers or TVs in Europe and the United States, we feel that the color temperature is reddish, warm, and somewhat unsuitable. People with dark eyes may see that 9300K is white, but blue-eyed people look blue; 6500K blue-eyed people look white, and Chinese people watch it yellow. 
In terms of color, for players who are just getting started, there is no need to pay too much attention to color management systems and gamma curve adjustment functions, because these adjustment functions need to be used with more professional color adjustment systems, such as video signal generators, color analysis instruments, etc. . Basically, you only need to carefully adjust the preset color and tone to get pretty good results. If you want better results, you can use an entry-level color adjustment system such as Spyder 4. 
Finally adjust the sharpness. Sharpness is very important for the reproduction of the picture details. It should be noted that when the sharpness is adjusted, the bigger or the smaller the better, but it is just right, we can make detailed adjustments according to the test screen, otherwise there will be text or image edge ghosting Happening.
Keystone correction
We often find that after the projected image comes out, it will produce deformations that are “large and small†or “small and largeâ€. This kind of projection distortion is called “trapezoidal distortion†or “trapezoidal deformationâ€. Most of the previous projectors had a special knob on the machine for adjustment. Nowadays, almost all of the projectors integrate this adjustment function into the menu, and the relevant options can be directly selected for adjustment. 
Conclusion: If you go through the above basic installation and debugging process, you can put the projector into a normal viewing state, but to get more accurate, true, natural color performance and accurate skin color reproduction, you also need to Machine made more in-depth, more professional color space adjustment.