[Failure Analysis and Processing]
First check the wiring interface is loose, and then check the serial port and interrupt number whether there is a conflict, if there are conflicts, resources should be adjusted to avoid conflicts. Then check the touch screen surface cracks, if cracks should be promptly replaced.
If the above sections are normal, replace the method can be used to check the touch screen, first replace the control box, then replace the touch screen, and finally replace the host.
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The following maintenance can be carried out:
1) Check whether the connection of the touch screen is correct. If there is a connection between the connection of the keyboard of the host computer (5 volts touch screen working voltage from the keyboard), check the connection.
2) If it is confirmed that the above conditions, please delete the touch screen driver and restart the computer to reinstall the driver.
3) If the touch screen is in use for a long period of time (3-4 years) and found some areas of the touch screen can not be touched, the touch screen may be broken Please replace the touch screen.
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1.Touch screen response time is very long [close to the side of a touch screen touch screen, touch the screen with your fingers, it takes a long time to respond.
[Failure Analysis and Processing]
This may be caused by a host virus or system chaos.
1) first check whether there is a virus host, if any, kill the virus.
2) system problems, testing can be adjusted, if not, reload the system.
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2. Touch screen partial no response
[Symptoms]
A touch screen, touch the monitor screen with your fingers, local no response.
[Failure Analysis and Processing]
This may be part of the touch screen scratched scratch hard, will not be repaired.
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3. The touch screen is normal but the computer can not operate
[Symptoms]
A touch screen, the test itself is all normal, but connected to the host, the computer can not operate.
[Failure Analysis and Processing]
This is possible before the host starts loading the touch screen driver, the touch screen control card receives the operation signal, simply restart the computer, and then restart the computer.
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4. The first time after installing the driver to start the touch screen is not responding
[Symptoms]
A touch screen, the first time after installing the driver to start the touch screen will be no response.
[Failure Analysis and Processing]
First confirm the touch screen line connection is correct, if not correct, should be shut down after the correct connection of all lines. Then check if there is a conflict between the device and the serial port resource in the host, check each hardware device and adjust them.
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5. After using the touch for a period of time no response.
[Symptoms]
A touch screen, boot after normal use for some time after no response.
[Failure Analysis and Processing]
Check the Windows 2000 “Monitor Energy Settings” is set to shut down the hard disk. Method is right-click on the desktop, select the “Properties” command, then from the dialog box, select the “Screen Saver” tab, click the “Settings” button, set the parameter to “power scheme” to “always open” The rest are “never”.
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6. Touch screen click accuracy decreases
[Symptoms]
A touch screen, the accuracy of its decline, the cursor is difficult to locate.
[Failure Analysis and Processing]
1) Run the touch screen calibration procedure.
2) If it is a newly purchased touch screen, please try to delete the driver, then power off the host for 5 seconds to restart the drive.
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7. The touch screen can not be calibrated
[Failure Analysis and Processing]
1) It is possible that before the host starts loading the touch screen driver, the touch screen control card receives the operation signal. Please turn off the power and restart the computer and recalibrate.
2) may be touch screen driver installation is abnormal, please delete the driver to reinstall. (Remove from Control Panel Add Remove Programs.) The mouse stays at some point on the touch screen.
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[Failure Analysis and Processing]
This happens because the resistive screen touch area (resistive screen surface is divided into two areas touch and non-touch area, touch the non-touch area is no response) is suppressed by the display case or cabinet enclosure, the equivalent of a The point has been touched. You can adjust the distance between the cabinet and the monitor screen by pressing the cabinet cover against the touch area. If the monitor cover is pressed against the touch area, you can try loosening the screws on the monitor cover.

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