Most touch screens are used in public places. Due to the environment, human operation and other reasons, there are often some problems in the process of use. Details are as follows:

1. No response to touch after a period of use

(1) Capacitive screen equipment in the long-term use process, due to the accumulation of static electricity on the screen and the internal control circuit, so that the entire equipment is covered by static electricity. Improper grounding may affect the normal operation of the screen and cause serious damage to the screen. Deviation and even failure. At this point, turn off the power supply of the device, use a wire to ground the screen inside and outside the discharge, eliminate a lot of static electricity, and then turn on the power supply of the device to restart.

(2) during the work of the acoustic touch screen, due to excessive accumulation of dust on the surface, if not often wiped, it will more or less block reception and reflection of the acoustic wave, which will also lead to a reduction in screen sensitivity, leading to abnormal use. After power off, you can use clean paper towels or business cards to gently wipe the dust on the screen surface and surrounding areas, and then restart the machine, it will normally work.

2. Hardware problems related to the touch screen

Normally, the serial port is used for signal transmission, and the working signal comes from PS2/ port. If the indicator light is off, it indicates that the signal is not collected or the PS2/ wire on the control box may be damaged. If the serial port is damaged or disabled, the driver cannot be installed. Replace the connector or lead. If the screen is squeezed and slightly deformed, it is because the touch area is pressed by the display shell or cabinet shell, which makes it impossible to locate. The cursor of the touch screen is always at a certain point 4 on the side of the monitor. You can ask a professional to correct the display case frame or adjust the distance between the cabinet and the monitor screen to deal with it.

3. Other related questions

The cursor movement area on the touch screen is small or the screen is inaccurate. Run the touch screen calibration program. When you change the resolution of the monitor, you may find that some areas of the touch screen cannot be touched at all. Maybe the touch screen is broken. Replace the touch screen.