1) The touch screen is disabled, and the Control Panel-Hardware and Sound-Device Manager checks whether the touchpad is disabled.
2) If the driver is lost, please reinstall the driver.
3) Driver conflict. Don't install two or more touch screen drivers on a host, which will easily lead to conflicts when the system is running, and the touch screen system can't be used normally. Delete redundant drivers.
4) The surface of the touch screen is stained with dust. Clean the surface with a dry soft cloth dipped in industrial alcohol or glass cleaning liquid.
5) If there is something wrong with the touch screen circuit, report for repair.
Touch screen, also known as "touch screen" and "touch panel", is an inductive liquid crystal display device, which can receive input signals such as contact. When touching the graphic buttons on the screen, the tactile feedback system on the screen can drive various connecting devices according to the pre-programmed program, which can be used to replace the mechanical button panel and create vivid audio-visual effects through the LCD screen. As a new computer input device, touch screen is the simplest, convenient and natural way of human-computer interaction at present. It gives multimedia a brand-new look and is a brand-new and attractive multimedia interactive device.
When the touch screen fails, first check whether the power supply of the control card is normal, whether the Windows driver is installed normally, then check whether the touch screen calibration under Windows is completed, whether the parameters in "Touch Screen Control" are correct, and whether the serial port and serial port cable are connected normally.
Check whether all wiring interfaces are loose, and then check whether there is any conflict between serial port and interrupt number. If there are conflicts, adjust resources to avoid conflicts. Then check whether there is any crack on the surface of the touch screen, and replace it in time if there is any crack. Also check whether there is dirt on the surface of the touch screen. If there is, remove it with a soft cloth. Observe and check whether the indicator light on the control box works normally. When it is normal, the indicator light flashes green.
Check whether there are devices in the host that conflict with serial port resources, and adjust the hardware devices. For example, the default IRQ of some network cards after installation is 3, which conflicts with the IRQ of COM2. At this point, the IRQ of the network card should be changed to idle IRQ. It may be that the computer motherboard is incompatible with the touch screen control box. Please replace the host or motherboard.
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