digital signage examples

[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

The LCD screen is the most intimate part of the touch all-in-one machine and the audience, and it is also the most critical part to improve the user experience. Therefore, the quality of the LCD screen directly determines the quality and application efficacy of the touch all-in-one machine. At present, in the touch all-in-one market, the most used LCD screens are plasma, LCD, and LED. The use period is usually between 6 and 10 years. Although we can extend the use period by replacing the lamp tube, but With the lamp tube replaced, a new problem has arisen because the liquid crystal in the screen will also age. In this case, the screen display of the touch all-in-one will inevitably affect the picture quality displayed by the touch all-in-one. The touch screen is a very important part of the touch all-in-one machine. It is an inductive liquid crystal display device that can receive input signals such as contacts. The current touch screens on the market mainly include resistive touch screens, capacitive touch screens, surface acoustic wave touch screens, and infrared touch screens. Each touch screen has its own advantages and disadvantages. You must combine your own use environment and the advantages and disadvantages of the touch screen to choose a touch screen suitable for your product. As the pillar supporting the normal operation of the control integrated machine, the quality of the power supply needs to be seen in the long-term use process. You can consult the supplier about the