Malfunction 1:
No response to touch, and the cursor does not move when people click on the screen.
Cause Analysis:
- Whether the driver is installed correctly;
- Whether the connection line between the touch screen and the touch control card is normal;
- Whether the connection between the touch control card and the motherboard is normal;
- Whether the touch screen or touch control card is damaged or abnormal;
- Whether there is an error report from the operating system (Windows);
- Whether the operating system (Windows) and the touch screen have software and hardware incompatibility problems.
Solutions:
- Correctly install the driver, and pay attention to two points: one is to remove the RS232 interface option during the installation of the resistive touchscreen driver (see the manual for details), and the other is that the capacitive touchscreen does not need to manually install the driver because the operating system (Windows) will automatically recognize and install it;
- Check whether the connection cable between the touch control card and the motherboard’s built-in USB plug is normal, you can re-plug it or change the cable for testing, but pay attention to the correct position and direction of the plug to avoid circuit burnout;
- Check whether the connection cable between the touch screen and the touch control card is normal. You can re-plug or change the cable to test, but you must pay attention to the correct position and direction of the plug to avoid burning the circuit;
- Check whether the touch screen or touch control card is damaged, and replace the touch screen or touch control card for testing;
- If an error report appears on the operating system (Windows), you can choose to replace the host or reinstall the operating system;
- When the operating system (Windows) and the touch screen have software and hardware incompatibility issues, please replace the operating system version.
Malfunction 2:
The touch position is inconsistent with the display cursor position (deviation or reverse or the main and secondary screens are reversed).
Cause Analysis:
- Whether an incorrect calibration has been performed;
- Calibration is not performed after the change of the touchscreen resolution;
- Whether the present touch control card has electromagnetic interference from other high-frequency equipment;
- The touch screen or touch control card may be damaged or abnormal.
Solutions:
- Resistive touch screen calibration needs to be done after clearing the drive, and then users can use the 9-point or 25-point linear setting to calibrate accurately. At the same time, when doing calibration settings, users should make sure that their eyes and the calibration points on the screen must be vertically, and then click the center point with the stylus;
Under normal circumstances, capacitive screens do not need to be calibrated, users can first check whether the connection between the touch screen cable and the touch control card is loose or skewed, and then reconnect correctly after power is turned off. If manual calibration is required, open the Tablet PC in the control panel, click Calibrate, and follow the screen prompts to calibrate; - Recalibrate under the new resolution (calibration method is the same as above);
- Replace the connection cable between the touch control card and the motherboard (you can choose the cable with a magnetic);
- Replace the touch screen or touch control card and test again. ring and make sure the plug direction and position are correct), or move the touch control card to a place with less interference and test again.
Malfunction 3:
The cursor is fixed at a certain point on the screen
Cause Analysis:
- Whether an incorrect calibration has been performed;
- The touch screen is installed too tightly or the installation is deviated, and the outer frame is pressed in the touch area;
- The touch screen or touch card may be damaged or abnormal.
Solutions:
- Re-calibrate correctly (the method is the same as malfunction 2①);
- Properly adjust the tightness of the screen frame or reinstall the touch screen;
- Replace the touch screen or touch control card and test again.
Malfunction 4:
A certain area of the touch screen does not respond
Cause Analysis:
- Whether an incorrect calibration has been performed;
- Is the screen consistent with the current drive;
- The screen may be damaged or abnormal.
Solutions:
- Re-calibrate correctly (the method is the same as fault 2①);
- Uninstall the incorrect driver, and then install the correct driver after restarting (see the manual for details on the installation method);
- Replace the touch screen or touch card and test again.
Malfunction 5:
The cursor flickers on the screen
Cause Analysis:
- Whether the temperature of the current touch control card is too high or there is electromagnetic interference from other high-frequency equipment;
- The touch control card power supply is unstable;
- The touch screen or touch control card may be damaged or abnormal.
Solutions:
- Replace the connection cable between the touch control card and the motherboard (you can choose the cable with a magnetic ring and make sure the plug is in the correct direction and position), or lower the temperature of the touch control card or move it to a place with less interference before the test;
- Replace the power adapter or a better-quality power strip;
- Replace the touch screen or touch control card and test again.
