[Integrated Machine Fault] The touch screen of the integrated machine computer is not responding touch Common troubleshooting methods for touch screen all-in-one machines

Common troubleshooting methods for touch screen all-in-one machines

1Inaccurate touch screen[Fault phenomenon]

A five wire resistive touch screen cannot complete the corresponding operation by touching the screen with fingers.

[Fault analysis and handling]

This phenomenon may be due to a problem with the calibration of the resistance screen.

The screen calibration program can be run under the following conditions  :(Open the touch screen software proofreading program on the desktop)1 ）Completing the installation of driver software for the first time.

2 ）After changing the resolution or display mode of the monitor every time.

3 ）After changing the display area each time.

4 ）After adjusting the frequency of the controller each time.

5 ）Every time the cursor does not correspond to the touch point.

After calibration, the calibrated data is stored in the register of the controller, so there is no need to calibrate the screen after each system startup.

2Touch screen unresponsive[Fault phenomenon]

A touch screen is not working and there is no response when touching any part.

[Fault analysis and handling]

Firstly, check if each wiring interface is loose, and then check if there are any conflicts between the serial port and interrupt number. If there are conflicts, adjust resources to avoid them. Check again if there are any cracks on the surface of the touch screen, and replace them promptly if there are any cracks.

If all the above parts are normal, the replacement method can be used to check the touch screen. First, replace the control box, then replace the touch screen, and finally replace the host.

The following maintenance can be carried out:

1 ）Check if the connection of the touch screen is correct, one of which is connected to the host keyboard port(Retrieve from keyboard port5  Volt touch screen working voltage)Is there a connection? Please check the connection.

2 ）If it is confirmed that the above is not the case, please remove the touch screen driver and restart the computer to reinstall the driver.

3 ）If the touch screen has been used for a long period of time(3-4year)If some areas of the touch screen cannot be touched, it may be due to the touch screen being damaged. Please replace the touch screen.

3Touch screen response time is very long[Fault phenomenon]

A touch screen that takes a long time to react after touching the display screen with your fingers.

[Fault analysis and handling]

This may be caused by a virus on the host or system chaos.

1 ）First check if the host has a virus, and if so, kill the virus first.

2 ）If there is a problem with the system, check if it can be adjusted. If not, reload the system.

4Local unresponsive touch screen[Fault phenomenon]

A touch screen, when touching the display screen with fingers, shows no response in some areas.

[Fault analysis and handling]

This may be due to the touch screen being partially scraped off by a hard object, which cannot be repaired.

5The touch screen is normal but the computer cannot operate[Fault phenomenon]

A touch screen has been tested to be functioning normally, but after connecting to the host, the computer cannot operate.

[Fault analysis and handling]

This may be due to the touch screen control card receiving an operation signal before the host starts loading the touch screen driver program. Simply turn off the power again and restart the computer.

6After installing the driver, there is no response when starting the touch screen for the first time[Fault phenomenon]

A touch screen that does not respond the first time it is started after installing the driver.

[Fault analysis and handling]

Firstly, confirm whether the touch screen wiring is connected correctly. If it is not correct, turn off the device and connect all wiring correctly. Then check if there are any devices in the host that conflict with serial resources, check each hardware device and adjust them.

7After using for a period of time, there is no response when touching.

[Fault phenomenon]

A touch screen that does not respond after being used normally for a period of time after being turned on.

[Fault analysis and handling]

Check on  Wlndows 2000Is the "Display Energy Saving Settings" set to turn off the hard drive. The method is to right-click on the desktop, select the "Properties" command, then select the "Screen Saver" tab from the dialog box, click the "Settings" button, and set the parameters to "Never" except for "Power Scheme" which is always on.

8Touch screen click accuracy decreases[Fault phenomenon]

A touch screen with decreased click accuracy makes it difficult to locate the cursor.

[Fault analysis and handling]

1 ）Run the touch screen calibration program.

2 ）If it is a newly purchased touchscreen, please try removing the driver and then powering off the host5  Second power on and reinstall the driver.

9The touch screen cannot be calibrated[Fault analysis and handling]

1 ）It is possible that the touch screen control card received an operation signal before the host started loading the touch screen driver program. Please power off and restart the computer and recalibrate.

2 ）It may be due to abnormal installation of the touch screen driver. Please remove the driver and reinstall it.(Remove from the Add/Remove program in the control panel.)

10Mouse hovering over a certain point on the touch screen

[Fault analysis and handling]

This situation occurs due to the touch area of the resistive screen  (The surface of the resistive screen is divided into two parts: the touch area and the non touch area，There is no response when clicking on non touch areas  )Pressed down by the monitor casing or cabinet casing，Equivalent to a point being constantly touched. If the cabinet shell is pressing down on the touch area, you can increase the distance between the cabinet and the display screen. If the display shell is pressing down on the touch area, you can try loosening the screws of the display shell a little.

11Unstable operation of touch screen[Fault phenomenon]

A touch screen that works extremely unstable, sometimes able to click normally but sometimes unresponsive.

[Fault analysis and handling]

In response to this phenomenon, it is important to focus on checking whether each wiring interface is loose, and whether there are conflicts between the serial port and interrupt number.

12Screen darkens[Fault phenomenon]

A touch screen with a darkened screen and abnormal color display, but with no operational issues.

[Fault analysis and handling]

The reason for this situation may be due to  2000  Incorrect color mode setting during system operation, or poor screen release due to screws being too tight during touch screen installationit120If insertedps2Mouth mice or keyboards may also experience screen darkening and inability to display normal colors.

processing method  :

1)Right click on the system desktop，Select Properties，Enter settings  - Advanced Window，choice  S3Gamma plustab，Then perform color adjustment.

2)Disassemble the cabinet，Loosen the screws on the touch screen to see if the color returns to normal, and adjust the tightness appropriately.

3)takeps2Replace the mouse or keyboard withusbInterface mouse and keyboard.

13Touch screen not displaying[Fault phenomenon]

A touch screen that starts up normally, but does not display.

[Fault analysis and handling]

This phenomenon may be due to poor wiring of the screen. If it is an all-in-one machine, it may be due to loose or damaged wiring inside the touch screen,  Can you double check if the screen wiring is fully connected  If the screen is already connected but still does not display, it indicates that the screen is faulty.

14An alarm occurs during startup[Fault phenomenon]

When starting up, there is a machine alarm and the machine cannot start normally.

[Fault analysis and handling]

This situation may be due to the memory or graphics card not being properly inserted or broken, but in most cases, the memory is not properly inserted. You can reinsert the memory for testing, replace the test memory and graphics card, and finally determine which aspect of the problem is, and then replace it.

15A blurred screen appears on the screen[Fault phenomenon]

After booting up, the screen appears blurred, and the machine can be used normally.