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The screen becomes dim [Symptoms]
On a touch screen, its screen is dimmed and the color is not displayed normally, but there is no problem in operation.
[Failure analysis and treatment]
The reason for this situation may be that the color mode setting is incorrect under the system operation,touch screen computer， or the screen is not properly lifted due to the tightening of the screw when installing the touch screen. If the mouse or keyboard of the ps2 port is inserted in the it120, the screen may also appear. The phenomenon that the normal color cannot be displayed when it becomes dark.
Approach :
1) Click the right mouse button on the system desktop, select properties, enter the settings-advanced window, select the S3Gamma plus tab, and then adjust the color.
2) Disassemble the cabinet, loosen the screws of the touch screen to see if the normal color is restored, and adjust the tightness appropriately.
3) Replace the mouse or keyboard of the ps2 with a mouse and keyboard with a usb interface.
There is no display on the touch screen [Troubleshooting]
A touch screen is turned on normally, but there is no display on the touch screen.
[Failure analysis and treatment]
This phenomenon may be because the wiring of the screen is not connected properly. If it is an all-in-one machine, the wiring in the touch screen may be loose or broken. You can recheck whether the wiring of the screen is fully connected. If the screen is connected, the screen is still not displayed. out of order.
Alarm occurs when starting up [Trouble phenomenon]
A machine alarm occurs when the machine is turned on, and the machine cannot start normally.
[Failure analysis and treatment]
This situation may be because the memory or the graphics card is not plugged in well or broken, but in most cases this happens because the memory is not plugged in properly. You can reinsert the memory and perform a test. You can replace the memory and graphics card, and finally get What is the problem, and then replace it.
Fuzzy screen appears on the screen [Troubleshooting]
After turning on the screen, there is a blurry screen, and the machine can be used normally.
[Failure analysis and treatment]
This situation may be caused by the loose wire between the screen and the motherboard. You can check whether the wire is firmly and correctly inserted. If there is still a problem, you can return to the factory for repair.
like：
The computer touch screen does not respond, how to repair it by yourself
What to do if the touch screen of the all-in-one computer does not respond①
Is it necessary to film the touch screen computer screen?
| By | ycbing |
| Added | Nov 18 '21 |
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