The touch query all-in-one machine is mainly composed of a touch screen, a liquid crystal screen, a computer host and some other electronic components with software that meets the application requirements. So, here are some common hardware problems and their solutions.
1. The fan sound is too loud when the touch query all-in-one is turned on
problem analysis:
1. The temperature-controlled fan will make a louder sound than usual when it is turned on;
2. Fan failure
solution:
1. When dealing with the loud sound of the CPU fan, if the user said that it was normal before, but now this happens, please explain to the user: affected by the use environment, the parts of the machine will inevitably get dusted with the increase of use time. The CPU fan is more noticeable. At startup, the fan runs at full speed, so the sound of the CPU fan will gradually increase as the usage time increases, which is normal.
2. If the sound of the CPU fan is always loud during use, it is recommended to remove dust, add lubricating oil and replace the CPU fan for the CPU fan. These operations have high requirements on the user's operating ability. At this time, it is recommended that the user send it for repair station to operate.
3. Adding lubricating oil requires the use of computer-specific lubricating oil.
2. After the touch query all-in-one computer is used for a period of time, there is no signal display
problem analysis:
1. The connection is loose;
2. Hardware failure: The display prompts no signal, and the possibility of display failure is low;
solution:
1. It is recommended to check whether the signal lines of the display and the host are loose;
2. Ask if you have a certain operating ability, if there is a suggestion to open the case, re-plug the graphics card and test the memory;
3. If the above method test is invalid, consider hardware failure and replace the hardware.