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How to do regular maintenance of large-screen optical equipment, DLP seamless splicing screen wall maintenance guide, as long as you remember and follow it, DLP seamless splicing screen wall will be no problem for 50 years. 1. Put the large-screen optical equipment in an environment that is easy to ventilate to increase the service life of the bulb of the large-screen optical equipment. 2. Regular cleaning of large-screen optical equipment can improve the brightness and contrast of the large-screen display system (increased by 10% to 30%). 3. When the temperature is very low, it will affect the normal use of the outdoor large screen. Generally, it is recommended to temporarily stop using it when it is below minus 30 degrees Celsius. Of course, taking other measures, such as installing an air conditioner in the box, can also ensure normal use. 4. Pay attention to the maintenance of daily optical components (color wheel, LCD panel, polarizer, lens, etc.) to prevent premature aging. 5. If the DLP seamless splicing wall fails, please contact the manufacturer in time. The above five points are the maintenance guide for DLP seamless splicing screen wall for everyone. I hope you will pay more attention to it during use.

[Fault Phenomenon] One LCD touch screen doesn’t work, and there is no response when touching any part.   [Fault Analysis and Treatment] First check whether the connection interface is loose, and then check whether there is conflict between serial ports and interrupt number. If there is conflict, adjust resources to avoid conflict. Then check whether there are cracks on the surface of the touch screen. If there are cracks, replace them in time, Also need to check whether there is dirt on the touch screen surface, if there is, use a soft cloth to remove it. Observe and check whether the indicator light on the control box works normally. When it works normally, the indicator light is green and flashes.   If the above parts are normal, the touch screen can be checked by replacement method, first replace the control box, then replace the touch screen, and finally replace the host.   If it is a resistive touch screen, it can be overhauled as follows: 1）Check whether the connection of the touch screen is right, and whether one of the connections (taking 5V touch screen working voltage from the keyboard port) is connected. Please check the connection. 2）Observe the light condition of the touch screen control box. If it doesn’t light up or the red light is on, the control box is broken. Please replace it. 3）If not, please delete the touch screen driver and restart the computer, re-install the driver, or replace the driver with a newer version. 4）If