Magic painting projection F 1 how to disassemble the host to clean up the dust?

1. Shell cleaning skills. Cleaning the projector housing is a relatively simple matter. Users should be careful not to use detergents containing surfactants, penetrants, sodium chlorate, active enzymes, strong acids and alkalis, such as washing powder and table cleaning. Try to use professional plastic cleaner or anhydrous alcohol. Choose to wipe the surface with a soft non-woven fabric and wipe the gap with a cotton swab dipped in anhydrous alcohol.

2. The main points of cleaning the air inlet. The air inlet is the easiest place for the projector to accumulate dust. To clean the air inlet, you can clean the air inlet fence with a soft brush first. When cleaning, pay attention to the downward air inlet to avoid brushing dust into the machine. If there is a micro vacuum cleaner to clean the keyboard, it can be further cleaned.

3. Lens cleaning skills, the lens is one of the important optical instruments of the projector, and it is also the most fragile part of the projector's appearance, so be extra careful about lens cleaning. Users are advised to choose professional dust-free cloth or blow balloons for cleaning. This kind of balloon blowing is generally sold in photography shops, and the price ranges from a few yuan to dozens of yuan. But be careful not to use the self-service compressed air tank as much as possible, because the pressure is too high, dust may blow into the gap of the lens, and it is not allowed to blow directly with the mouth, so there will be a lot of saliva particles blowing to the surface of the lens, which will be difficult to handle.

4. When using a dust-free cloth to wipe the lens, you must wipe it in one direction, and never wipe it back and forth or in circles to avoid serious damage to the lens coating. If there is no special dust-free cloth, you can also choose to wipe the suede or lens paper for the lens. When scrubbing, be careful not to squeeze the lens surface hard, because the lens surface is covered with a fragile coating, which can be easily wiped off by hard cleaning. If there are stubborn stains on the lens, such as fingerprints, grease, etc. You need cleaning liquid to clean it. There are many arguments about whether to use lens cleaning liquid to clean the lens. Some inferior brands of cleaning fluids can really damage lenses. Therefore, we suggest that if the stubborn stains on the lens can be simply cleaned with tools such as suede, then there is no need to use cleaning solution, and we must pay attention to using too much when we have to use it.

5. The lens fixing bowl outside the projector lens is also a place where dust can easily gather. This place has a small space, and there will be gaps connected with the lens, which is generally difficult to clean. Users can wipe it with cotton swab dipped in absolute alcohol, but be careful not to touch the projector lens to avoid damaging the lens protective coating.

6. Disassembly tools for internal cleaning tools: professional magnetic cross screwdriver, flat screwdriver, various sleeves, needle-nosed pliers and tweezers.

7. Cleaning tools: anti-static soft brush, hair dryer and large fan.

8. Clean the projector bulb. Touch metal objects before opening the projector top cover to release human static electricity. After removing the top cover of the projector, the first thing that needs to be cleaned is the dust on the four corners of the top cover. Pay attention to the wind direction of dust blowing from the projector to prevent dust from entering the optical components inside the projector. Then remove the metal protective plate of the projector circuit board, and be careful not to hang and rub wires around the circuit board.

9. The middle part of the projector is the projector bulb compartment. In order to ensure the safety of the light bulb in the cleaning work of the projector motherboard, it is suggested to remove the light bulb first and clean the lamp holder and the surface of the light bulb. After the lamp holder is cleaned with a soft brush, it can be further wiped with a dust-free cloth, but try not to use a hair dryer to avoid dust entering the lamp holder.

10. Lamp holder cleaning You can use the balloon blowing tool to clean the projector lens for non-contact dust cleaning. Do not use any cleaning agent to avoid damaging the surface of the bulb. Everyone should pay attention here. If the projector bulb is detachable, it can be cleaned regularly. On the one hand, it can prevent the brightness from decreasing due to dust adsorption, on the other hand, it can ensure the balance of overall heat dissipation of the bulb and avoid the occurrence of bulb bursting accidents.

1 1. Clean the internal electronic components and remove the protective cover of the circuit board. First, you can see the projector motherboard. Because the external projector motherboard will generate static electricity after being electrified, it will absorb dust. Especially the inner layer of the motherboard is one of the places where dust collects inside the projector because of inconvenient ventilation. If you want to clean the motherboard thoroughly, you need to remove the motherboard, clean it with an antistatic soft brush, and then clean the chip bonding array for the second time with a hair dryer.

12. After removing the motherboard, you will see the motherboard support frame. Inside the supporting frame are the voltage board and power supply equipment. Although it is the same as the projector motherboard, it will generate static electricity to absorb dust after power-on, but because it is in a relatively sealed place inside, it will be cleaner and there will be no obvious dust accumulation. After disassembly, you can simply clean it with a hair dryer.

13. The internal air exchange system is clean. The fan inside the projector is often the dirtiest part of the whole projector because of its particularity. Users can remove it and focus on cleaning it. Remember to dial the fan blade by hand after cleaning the dust to see if the fan rotates smoothly. If the fan does not rotate smoothly, consider replacing it with a new fan to avoid damaging the projector due to excessive internal temperature caused by fan problems.

14. There is an L-shaped wind tunnel behind the bulb compartment. Its main function is to compress the air inside the projector after filtering dust, and use clean high-pressure airflow to quickly dissipate heat for the projector bulb. After removing the device, users should not only wipe the outside, but also clean the inside of the L wind tunnel. You can use the strong airflow of a large fan to clean along the direction from the fan to the air outlet. Finally, remember to clean and check the air compressor fan.

15. The optical system is clean, and the optical system is the most important part of the whole projector. Today, I will introduce the optical system of DLP technology to you. DLP optical machine adopts fully sealed design, and the projection chip is sealed inside the machine, which is very simple to clean. Users only need to pay attention to cleaning the cooling plate and DMD chip of the optical machine, and they can be integrated with the lens. The DMD chip is a circuit board, which is located on the back of the optical machine and can be removed and cleaned with a soft brush and a hair dryer. The radiator plate is usually made of several layers of aluminum metal sheets with high thermal conductivity, and it needs the strong airflow of a large fan to be thoroughly cleaned.

16. On the right side of the optical lens, there is a colored disc. This is the projection color wheel, which is one of the important optical equipment of DLP optical machine. The color wheel is made of a fully transparent wafer, which requires good light transmission. Therefore, once dust accumulates on the color wheel, it will cause problems such as gloomy color and reduced brightness of the projected picture. When cleaning the color wheel, users should pay attention to the light action, try to use the hair dryer used to clean the lens, and at the same time, pay attention to avoid the impact of strong airflow on the color wheel, so as not to cause the color wheel to deform, and do not use contact cleaning.

17. The inner wall of the projector is clean. After removing the motherboard, light bulb, L-shaped light bulb wind tunnel, optical machine and various supports, there is only an empty shell inside the projector, but you will find that the dust accumulation inside this shell is the most serious place (the red arrow is the most prone part of the projector), especially the dust in the air inlet, parts support and other positions is several times that in other parts, so users can put the prepared parts here. After some efforts, I believe that all the dust inside the projector has been driven away. After cleaning, all components of the projector can be installed in sequence. When installing, pay attention to tighten the fixing screws, especially the screws of the fan system, so as to avoid unnecessary losses caused by falling off the screws.