With the rapid economic development of China in recent years, more families use home projectors. As far as the average family is concerned, they don’t know enough about this kind of precision together. Although they usually pay attention to it, there is no guarantee that there will be no accidents in the process of using it. At this time, they need to face it calmly. In order to solve the problem, effectively extend the life of the projector, so that every penny we spend is worth the money. Let’s talk about a few possible problems and propose solutions.
1. Press the start button of the projector, but nothing happens
This shows that the circuit is not smooth. First determine whether the power plug is in effective contact with the socket; secondly, see whether the power cord used is paired with this type of home projector. Once it is confirmed that these two problems are not the case, then it is very likely that there is a problem with the internal power supply and the bulb The possibility of filament damage is great.
2. The projector starts normally, but there is no image
It can be concluded that there is a problem with the signal. The first step is to check whether all the signal lines are in poor contact, or they are not connected properly; the second step, because different brands of projectors and other personal devices need to be pressed when they are connected, it may be The signal cannot be switched correctly.
3. The picture is deformed and distorted
The home projector is left for too long, and the projector may move or tilt. At this time, there may be a certain amount of picture distortion, and the position of the body needs to be re-adjusted. In addition, the main menu control parameters are wrong and need to be reset.
4. There is a deviation in the color of the picture
When we use the projector, the color control parameters of the main menu have a relatively fixed adjustment. These parameter settings may be disturbed by people, and the projected picture will be deviated. At this time, you need to use the remote control to re-adjust; it is also possible that the plugs at both ends of the signal line are loose and cause deviation or broken needles. In this case, a certain color signal may not be transmitted.
5. The text or picture is blurred
The text or picture is blurred mainly because there is a problem with the focal length, so readjust the focal length setting. When projecting, the user should pay attention to the proper distance between the projector and the screen. After confirming the distance, adjust the focal length to make the text image clear; in addition, if the projector lens is dusty, the same situation will be caused. The projection lens can be carefully wiped with a clean soft cloth, lens cleaning paper or special objects; if the working life of the projector lamp reaches the end, or the LCD panel is seriously aging, the above phenomenon will also occur. Send your projector to a professional repair station for cleaning and maintenance.
6. Horizontal or vertical stripes appear on the screen
Determine whether there is signal clutter interference. For example, fluorescent lamps, electric fans, air conditioners, even cars, lightning, etc. that are too close may sometimes cause interference to the projector, and communication devices such as mobile phones may also affect the signal source. Causes horizontal stripes to appear on the display screen. Moreover, if the signal cable from the signal source to the projector is of poor quality, loose plugs at both ends, or weak soldering and unsoldering of the pins in the plug, there will also be streaks. We can also take care of this. Check the verification.
7. Sudden shutdown during use
One possibility is that the projector is overheated. If the projector does not dissipate heat smoothly, such as the accumulation of dust at the air inlet and outlet, the sponge filter is not cleaned for a long time, etc., or the heat dissipation function fails, this may cause the internal temperature of the projector body to be too high. , This may cause the projector to shut down suddenly. Another possibility is that after the power is suddenly cut off, we need to wait for it to cool down and then turn it on again. In fact, there is no need to worry too much.
8. There are stains on the display screen
First check whether the projector lens is stuck with dust or paper. In addition, the burn-out of the projector’s display panel will also cause color spots on the screen. In order to reduce the possibility of stains, you should develop the habit of shutting down with the remote control. After the projector’s bulb is extinguished, wait for a few minutes to cool down before turning off the power. Do not directly press the main power switch to turn off the power in one step. This may lead to rapid aging of the display panel, which in turn may cause color spots on the display image.