How come projector has spot and shadow? What should we do?

Carl B

Member
As an optical glass instrument, the projector has a more complex light machine inside, and many lenses of intelligent projectors are composed of multiple layers of glass. After many projectors have been used for a long time, the screen will still have light spot and shadow, so can you handle the shadow and light spot in the projector screen? The first answer is, of course, you can do a simple investigation first. Refer to the following for specific troubleshooting methods.

After the projector is used for a period of time, the screen has spot and shadow. How to solve the problem?

1. First, observe whether the curtain or the wall is clean, and some light spots will also be caused by the curtain and the wall.

2. If there is no problem with the curtain and the wall, then observe whether there is any foreign matter in the lens. If the machine is to be shut down and cooled, blow it down with professional equipment or wipe it down slightly, but be careful not to damage the lens protective layer. It is not within the scope of warranty to wipe the damaged lens artificially.

3. After the above two methods are checked, it is the internal problem of the projector. It is necessary to dismantle the projector to check whether the glass of the projector lens is damaged.

4. The lens of the projector is not damaged, and the internal light machine of the projector needs to be further inspected;

5. If it is the same, it is recommended to return to the factory for disposal after consignment. If it is not within the warranty period, you can also find a projector repair shop by yourself.

How come projector has spot and shadow? What should we do?

What should be noted here is that the third and fourth troubleshooting methods need a certain ability to dismantle the machine. If the ability of personal operation is not strong, it is recommended not to dismantle the machine without permission. In addition, for internal instrument problems that cannot be solved by the projector itself, it is recommended to return to the manufacturer for proper treatment, but the price will be more expensive. Hope that the above troubleshooting methods can help the projector users.
 
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