I. Analysis and Treatment of Resistance Touch Screen Faults
Failure 1: mouse and arrow do not coincide
Phenomenon: The position touched by the finger does not coincide with the mouse arrow.
Analysis: After installing the driver, there is no vertical touch of the center of the target when correcting the position. The signal lines on the touch screen are not in good contact or open.
Processing method: Re-calibrate position; find breakpoints and reconnect or replace touch screen.
Fault 2: Accuracy and Deviation of Touch Screen
Phenomenon: When not touched, the mouse arrow always stays at a certain position. When touched, the mouse arrow is at the middle of the touching point and the original stopping point.
Analysis: There are foreign bodies (non-active touch) pressing the effective working area of the resistance touch screen.
Processing method: Remove the foreign body in the effective working area of the oppression resistance touch screen.
Failure 3: Touch unresponsiveness
Phenomenon: When touching the screen, the mouse arrow has no action and no position change.
Analysis: There are many reasons for this phenomenon, one by one, as follows:
(1) Touch screen malfunction
(2) Touch screen control card malfunction.
(3) Touch screen signal line malfunction.
(4) The serial port of the host computer has malfunction.
(5) The operating system of the computer has malfunction.
(6) Installation error of touch screen driver.
II. Common Faults and Removal of Resistance Screen
Resistance touch screen mouse moves only in a small area or the resistance touch screen is inaccurate.
Usually this will happen in the first installation of the driver. Please run the touch screen calibration program. The touch screen calibration program must also be run after changing the resolution of the display.（Start-Procedure）
The mouse always appears at a point on the four sides of the display because the touch area of the resistance screen (the surface of the resistance screen is divided into touch area and non-touch area, clicking on the non-touch area is not responsive) is pressed by the display shell or cabinet shell, which is equivalent to a point being touched all the time.If the cabinet case holds down the touch area, you can increase the distance between the cabinet and the display screen. If the display case holds down the touch area, you can try to loosen the screw of the display case a little. If not, please contact the manufacturer.
Above is for industrial touch screen touch failure analysis and solutions, operators must standardize the operation, failure must be solved by professionals, do not unauthorized disassembly inspection.
