At present, the touch all-in-one computer has become an indispensable part of modern teaching, modern classroom construction and multimedia teaching. It can enrich classroom content, mobilize students' enthusiasm for learning, improve classroom efficiency and learning efficiency, and create a relaxed and pleasant learning environment for students. However, since the touch all-in-one machine is an electronic product, it will inevitably malfunction, be unable to operate or be unresponsive after a long time of use. So how to solve the fault of the all-in-one touch inquiry machine?

1. First check the connection and integrity of the USB interface of the touch screen of the touch all-in-one computer. If there is a problem with the USB interface connection of the touch screen, it should be reconnected. If the wiring is damaged, it should be replaced.

2. If the touch screen wiring of the touch all-in-one machine is normal and intact, then check whether there is a problem with the USB interface of the host computer. If there is a problem with the USB interface or USB data cable of the host, it is simple, we just need to replace it.

3. If it is not caused by the above two problems, it may be caused by the problem of the touch screen.

If it is caused by the problem of the touch screen, it can be divided into the following three situations:

1: If the touch screen and buttons all fail, you need to solder or replace the touch IC.

2: If the touch screen is faulty and the keys are normal, you need to replace the touch screen, add soldering or replace the touch IC and CPU, and check for broken wires or short circuits.

3: the touch screen is biased. After the correction, it still cannot be solved or there is a deviation. Then at this time, you need to restore the touch query all-in-one machine to the factory or format it.