If the projector appears dark yellow or the color is not bright, it is likely that the lamp has expired and you need to replace the lamp. It is also possible that the image quality of the projector may be degraded because the distance between the signal source and the projector is large, and the signal connection is longer, which leads to signal attenuation. At this time, the picture may appear blurry, tailing or jitter.
Projector brightness drops and the picture blurs solution
When the lamp has reached the end of its life span, it should be replaced with a new one. It should be noted that when replacing the bulb, the use time of the bulb must be reset after replacing the new bulb, otherwise the new bulb will be calculated based on the old time, which will easily lead to accelerated aging. When the bulb failure can be eliminated, the cause of the failure may be that the signal attenuation caused by the signal line is too long, and the image quality is degraded. At this time, a signal amplifier can be installed after the signal source to ensure that the signal transmission is not more than 20 meters. Attenuation occurs.
Projector picture appears white or even blue-purple patches analyses
It means that the red polarizer in the internal optical system of the projector is damaged, so the image projected by the projector will have color cast. The way to solve this problem is to replace with a new red polarizer. However, this kind of red polarizer replacement operation requires opening the casing of the projector, but due to the high voltage inside the projector, it may cause harm to the human body.
There are 6 possible reasons for the projector showing vertical lines.
1. The VGA cable is broken (change the cable)
2. The computer VGA interface bai is broken (repair the computer)
3. The projector VGA interface is broken (the projector is guaranteed)
4. The projector motherboard is broken (warranty projector)
5. Change a graphics card, or uninstall the graphics card driver and reinstall it
6. The synthetic flat wire is not inserted in place, or dust is mixed in.
The above situation is for reference only. The replacement of accessories is technical and cannot be disassembled at will to avoid secondary damage to the projector.
Projector brightness drops and the picture blurs solution
When the lamp has reached the end of its life span, it should be replaced with a new one. It should be noted that when replacing the bulb, the use time of the bulb must be reset after replacing the new bulb, otherwise the new bulb will be calculated based on the old time, which will easily lead to accelerated aging. When the bulb failure can be eliminated, the cause of the failure may be that the signal attenuation caused by the signal line is too long, and the image quality is degraded. At this time, a signal amplifier can be installed after the signal source to ensure that the signal transmission is not more than 20 meters. Attenuation occurs.
Projector picture appears white or even blue-purple patches analyses
It means that the red polarizer in the internal optical system of the projector is damaged, so the image projected by the projector will have color cast. The way to solve this problem is to replace with a new red polarizer. However, this kind of red polarizer replacement operation requires opening the casing of the projector, but due to the high voltage inside the projector, it may cause harm to the human body.
There are 6 possible reasons for the projector showing vertical lines.
1. The VGA cable is broken (change the cable)
2. The computer VGA interface bai is broken (repair the computer)
3. The projector VGA interface is broken (the projector is guaranteed)
4. The projector motherboard is broken (warranty projector)
5. Change a graphics card, or uninstall the graphics card driver and reinstall it
6. The synthetic flat wire is not inserted in place, or dust is mixed in.
The above situation is for reference only. The replacement of accessories is technical and cannot be disassembled at will to avoid secondary damage to the projector.
