Touch/Touch Integrated Machine Problems and Solutions
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One, touch one machine failure can be divided into hardware and non-hardware failure
1 hardware failure common phenomenon:
If the power-on power light is off, the display screen is not displayed, the main board horn reports an alarm and cannot be used, and the display prompts an error message but it cannot enter the system.
2. Software failures Common phenomenon:
If the error message fails to enter the system, the system cannot enter the system but the application software cannot run.
Second, the fault operation method:
1. After the first static move: first analysis to consider where the problem may be, and then hands-on operation 2. First outside the inside: first check the computer external power supply, equipment, lines, and then consider the internal problems of the machine;
3. First soft and hard: Start with the software and start with the hardware.
Third, the specific operation of the fault:
1. Nothing happens when the power switch is pressed: Check whether the power cord of the machine is plugged in, and if the power adapter is broken, it can be tested by the replacement method.
2. The host horn sounds: The error can be judged according to the number of sounds. For an all-in-one, most memory cards are loose and cause an alarm.
3. Can not enter the operating system, press F11 to restore the system.
4. Application software failure:
(A) Start the computer and press F8. Select menu item 3 to enter the Windows security mode. Check the fault and restart it.
(B) After the software UNINSTALL and delete its directory, reinstall the software.
(C) Contact the software vendor.
Fourth, according to the screen prompts error information to determine:
Non-Hardware Failure 1, Power Outlet, and Switch Many peripheral devices are independently powered. When confronted with an independent power supply peripheral failure phenomenon, first check whether the device power is normal, whether the power plug/socket is in good contact, and whether the power switch is turned on.
2. Connection problem: The connection between the peripheral device and the computer is through the data cable. The data line falling off and the poor contact will cause the peripheral device to work abnormally. The printer, guest display, etc. are placed next to the computer and does not mean that the printer is connected. On the machine, you should check for the correct cable connection between devices.
3, set the problem: for example: the display is no display is likely to be disturbed by the line frequency, the width is compressed, or even just the brightness is adjusted to the darkest ... Learn more about the settings of the peripherals, and try it out, help to find Some problems that were originally thought to be solved without replacing the parts. 4. New features of the system: Many “failure†phenomena are actually new features of hardware devices or operating systems. For example, a machine with an energy-saving function will automatically turn off the power of the monitor and hard disk after nobody uses the computer or runs it for a period of time. After you press the keyboard, it will return to normal. If you do not know this feature, you may think that the monitor and hard disk are faulty.
Through the above content, we can roughly determine where the problem lies, and we can solve some common problems on our own.
Most users of the touch-sensitive machine may have some difficulties in the application of the touch screen function. The following lists common faults.
When the touch screen is faulty, check whether the power supply of the control card is normal and whether the Windows driver is properly installed. Then check whether the touch screen calibration under Windows is completed. Also check whether the serial port is normal and whether the serial port cable is connected properly.
1. Touch screen is not allowed [Troubleshooting]
A five-wire resistive touch screen, where the finger touches the screen of the display, cannot normally perform the corresponding operation.
[Fault Analysis Processing]
This phenomenon may be a problem with the calibration of the resistive screen.
The screen calibration procedure can be run under the following conditions: (Open the touch screen software calibration program on the desktop)
1) Complete the installation of the driver software for the first time.
2) After changing the resolution or display mode of the monitor each time.
3) After changing the display area of ​​the display each time.
4) After adjusting the frequency of the controller each time.
5) Each time the cursor and touch point do not correspond.
After calibration, the calibrated data is stored in the controller's registers so that the screen does not need to be calibrated after each system startup.
2. Touch screen does not respond [Troubleshooting]
A touch screen does not work, no response to touch any part.
[Fault Analysis Processing]
First, check whether the connection interface is loose, and then check whether the serial port and the interrupt number have conflicts. If there is conflict, resources should be adjusted to avoid conflicts. Then check the surface of the touch screen for cracks. If any cracks should be replaced.
If the above parts are all normal, use the replacement method to check the touch screen, replace the control box first, replace the touch screen, and finally replace the main unit.
The following maintenance can be performed:
1) Check if the connection of the touch screen is connected. One of the connections to the keyboard port of the host (take the 5 volt touch screen working voltage from the keyboard port) is connected. Check the connection.
2) If the confirmation is not the above, delete the touch screen driver and restart the computer to install the driver again.
3) If the touch screen is used for a long period of time (3-4 years) and some areas of the touch screen cannot be touched, the touch screen may be broken. Please replace the touch screen.
3. Touch screen response time is very long: a touch screen, touch the screen with your fingers, it takes a long time to react.
[Fault Analysis Processing]
This may be due to a host virus or system confusion.
1) Check whether the host has a virus first. If so, kill the virus first.
2) The system has a problem. Check if it can be adjusted. If not, reload the system.
4. The touch screen is partially unresponsive [Troubleshooting]
A touch screen, after touching the display screen with your finger, there is no response in the local area.
[Fault Analysis Processing]
This may be because the touch screen is partially scratched by hard objects and will not be repaired.
5. The touch screen is normal but the computer cannot operate [Troubleshooting]
A touch screen, after testing itself, everything is normal, but after connecting to the host, the computer can not operate.
[Fault Analysis Processing]
It may be that before the host starts to load the touch screen driver, the touch screen control card receives the operation signal, and only after the power is turned off again, the computer can be started again.
6. No response from touch screen for the first time after installing the driver [error symptom]
A touch screen, the first time you start the touch screen after installing the driver, will not respond.
[Fault Analysis Processing]
First of all, confirm whether the touch screen line connection is correct. If it is not correct, all lines should be connected properly after shutdown. Then check whether the device conflicts with the serial port resource in the host, check each hardware device and adjust them.
7. Touch no response after using for a period of time.
[Troubleshooting]
A touch screen does not respond after being turned on for a period of time.
[Fault Analysis Processing]
Check whether the hard disk is turned off in Wldndows2000's "Monitor Energy Saver Settings". Method is to right-click on the desktop, select "Properties" command, and then from the dialog box, select the "Screen Saver" tab, click the "Settings" button, the parameter is set to "Power Scheme" is "Always open" The rest are "never."
8. Touch screen click accuracy is reduced [fault phenomenon]
With a touch screen, the click accuracy is reduced and the cursor is difficult to locate.
[Fault Analysis 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.
9. Touch screen cannot be calibrated [Failure Analysis Processing]
1) It may be that the touch screen control card receives the operation signal before the host starts to load the touch screen driver. Please restart the computer after power off and recalibrate.
2) The touch screen driver may be installed abnormally. Please delete the driver and reinstall it. (Remove from the control panel to add delete program inside.
10. The mouse stays at a certain point on the touch screen.
[Fault Analysis Processing]
This happens because the touch screen of the resistive screen (the surface of the resistive screen is divided into two parts: the touched area and the non-touched area, and the clicked non-touched area has no response) is suppressed by the display housing or the cabinet housing, which is equivalent to a certain The point has been touched. If the enclosure is pressed against the touch area, you can increase the distance between the enclosure and the monitor screen. If the monitor enclosure is pressed against the touch area, you can try loosening the monitor enclosure screws a little.
11. Touch screen operation is unstable [Troubleshooting]
A touch screen, its work is extremely unstable, sometimes it can click normally, and sometimes it does not respond.
[Fault Analysis Processing]
In response to this phenomenon, it should be emphatically checked whether the connection interfaces are loose or whether there is a conflict between the serial port and the interrupt number.
12. The screen becomes dark [faulty phenomenon]
A touch screen, its screen darkens, the color is not normal, but the operation is no problem.
[Fault Analysis Processing]
The reason for this may be because the color mode is set incorrectly under the 2000 system operation, or because the screws are too tight when the touch screen is installed to cause the screen to be unsuccessful. In the it120, if the mouse or keyboard with the ps2 port is inserted, the screen may appear. Darkening does not show normal color.
Approach:
1) Right-click on the system desktop, select Properties, enter the Settings - Advanced window, select the S3Gammaplus tab, and then make color adjustments.
2) Open the cabinet, loosen the screws of the touch screen to see if the normal color is restored, and adjust the tightness properly.
3) Replace the PS2 mouse or keyboard with a USB mouse keyboard.
13. The touch screen is not displayed.
[Troubleshooting]
A touch screen, normal boot, but the touch screen is not displayed.
[Fault Analysis Processing]
This phenomenon may be because the screen wiring is not connected properly. If it is an all-in-one computer, the wiring in the touch screen may be loose or broken. You can recheck whether the wiring of the screen is completely connected. If the screen has been connected or the description screen is not displayed failure.
14. When the alarm appears on boot.
[Troubleshooting]
Machine alarm appears when starting up, the machine can not start normally.
[Fault Analysis Processing]
This situation may be because the memory or graphics card is not inserted or broken, but in most cases this situation is not inserted in the memory, you can re-insert the memory, test, you can replace the test memory and graphics card, and finally What is the problem, then change it.
15. The screen appears a screen [failure]
The screen appears on the screen after booting, the machine can be used normally.
[Fault Analysis Processing]
This situation may be due to the fact that the line between the screen and the motherboard is not securely generated. You can check whether the plug is firm and plugged in correctly. If problems still occur, you can return to the factory for repair.
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