What are the operating standards of touch screen panel manufacturers?
Touch screens must be clear, responsive and stable to be a standard touch display.
Means of self-testing
Use the check program provided in the driver program to check whether the physical function of the touch screen is normal;
If you have two or more sets of the product, use a hardware replacement method to identify which parts of the hardware are faulty.The replacement test part is the control card, screen, cable;
If you have more than two PCS, please replace the PC for testing.The main PC faults that cause the touch screen to fail to operate normally include: is the rs-232 serial port normal?Can use the mouse to do the test;Can the power supply of the keyboard port be provided normally?Can be used to connect to the keyboard test;Are IRQ and other interrupts conflicting?You can enter the system resources to view the COM port and IRQ occupation.
Test is normal, the software driver can not run the normal unified processing
Check to see if there is a matching driver in the corresponding product and controller Settings.
With the rs-232 controller, whether the serial number connected by touching the screen cable is different from the serial number in the software installation, please correct it and try again.
Are device resources conflicting?If some network CARDS are installed after the default IRQ is 3, and COM2 IRQ conflict.The network card's IRQ should be changed to the device idle IRQ value.
If the above means test is completely normal and cannot solve your technical fault, please refer to the following product fault method to troubleshoot the existing fault according to the situation of your product.