what should I do if the touch screen suddenly fails?

Nowadays, the Internet has been fully popularized, and the application industry of touch all-in-one machines has become more and more extensive. The most common ones are shopping malls, banks, hospitals, hotels, schools, etc. and even some institutions can see the existence of touch all-in-one machines. It is a machine that integrates the three functions of computer, TV and touch. Because of such powerful functions, it has attracted much attention. Of course, the touch screen in the touch all-in-one machine is one of the most important components in it. So what should I do if the touch screen suddenly fails?

1. Check the wiring

If it is a USB interface, first re-plug and unplug the USB cable of the touch all-in-one machine to see if it is not, then check whether the USB cable is in good condition. We can try to plug in the USB cable of the mouse or keyboard. If there is a problem with the USB interface or the USB data cable, just replace it; then check whether each wiring interface is loose, and then check whether there is a conflict between the serial port and the interrupt number. If there is a conflict, adjust the resources to avoid Conflict; then check whether the connection of the touch screen is correct, and whether one of the wires connected to the keyboard port of the host (take the 5V touch screen working voltage from the keyboard port) is connected, please check the connection. If it is a detachable structure, please recheck that the components are well connected and the connecting wires are not damaged.

2. Check the infrared frame

There is too much dust on the border of the screen surface, which blocks the reflection stripes of the wave. Use a clean towel or paper towel to wipe off the dust on the surface of the touch screen.

3. Check the hardware

Enter the device manager of the LCD touch all-in-one to see if the touch screen hardware can be found (you can check whether there is a device appearing or disappearing in the device manager by unplugging and plugging the cable), and then check whether there are cracks on the surface of the touch screen. replace. If the above parts are normal, check the touch screen by the replacement method, first replace the control box, then replace the touch screen, and finally replace the host.

4. Check whether the touch function is enabled

Check whether the touch function is enabled, find the touch driver that controls the touch function in the touch all-in-one system, and see if it is set to “disabled”.

5. Troubleshoot software

First make sure that the touch screen driver is correctly installed in the host computer. If it is confirmed that the above is not the case, please delete the touch screen driver and restart the computer to reinstall the driver. Click to obtain the latest driver for each system.
If the above methods do not work, consider that the touch software is running too much at the moment, resulting in insufficient computer memory of the touch screen all-in-one computer, resulting in no response. Then the short-term solution is to restart the machine, but for a long-term solution, you need to increase the memory stick.

6. The screen itself

If the touch screen has been used for a long time (4-6 years) and the frequency of daily use is high, and it is found that some areas of the touch screen cannot be touched, it may be that the touch screen is broken. Please replace the touch screen.