Causes of TV screen distortion: 1. The video connection cable is abnormal; 2. The internal hardware of the TV is faulty; 3. The GAMMA correction voltage problem on the logic board, the most common one is AS15-G fault, you can touch AS15 -G Whether it is hot; 4. There is a problem with the LCD screen itself. Once it fails, it will cause lack of color or screen blur.
#The operating environment of this tutorial: Windows 7 system, Dell G3 computer.
What causes the TV screen to become blurry?
The analysis and solutions to the causes of TV screen distortion are as follows:
1. Generally, try to check whether the video connection cable is normal. If the problem persists after reconnecting and restarting, it is usually due to There is a hardware failure within the TV.
2. If the TV display is normal when it is turned on, but turns into a blurred screen after a few minutes, and then the brightness of the screen becomes brighter. Generally, you can calibrate the voltage by measuring the GAMMA on the logic board. The most common one is AS15. -G fault, you can touch AS15-G to see if it is hot. If it is hot to the touch, it is judged that the AS15-G is faulty. It mainly measures whether the voltage of each GAMMA is abnormal to determine which specific GAMMA voltage is wrong. Replacing the new AS15-G can return to normal.
3. If the color display of the screen is caused by confusion, it can generally be judged to be a problem with the LCD screen itself. Because the LCD screen display image requires a backlight and a circuit that can change the arrangement direction of the liquid crystal. This circuit controls the pixel dots of the three colors of liquid crystal RGB respectively. Once a fault occurs, it will cause color failure or screen blur.
4. Since the above two causes involve disassembly and inspection, it is recommended that ordinary users contact the after-sales service personnel of the relevant brand TV to conduct a comprehensive inspection and warranty on the TV.
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