How to repair the broken camera lens?

What if the Sony camera lens can't be stretched when it falls, and the monitor can't recognize the lens and can't take pictures?

It means that the lens has been broken, causing the lens to get stuck.

Camera lens belongs to precision equipment, so you can only go to the brand after-sales point to find professionals to repair or replace the lens.

The lens has two fingers in film and television. One is the optical element used by film cameras and projectors to produce images, which consists of multiple lenses. Different lenses have different modeling characteristics, and their application in photographic modeling constitutes an optical expression means; The second finger refers to the picture taken continuously from power on to power off, or the fragment between two editing points, also called ytterbium head. One finger and two fingers are two completely different concepts. In order to distinguish, one refers to the optical lens and the other refers to the lens picture.

According to the origin of lenses, mainly Japanese lenses and German lenses. Japanese lenses mainly have good color reproduction, while German lenses have a strong sense of layering. China's lens has gradually occupied a certain market in the market, mainly because the price is relatively low.

How to repair the broken camera?

Lead: There are more and more surveillance cameras in our daily life, which are used in small shops, restaurants, shopping malls, laundries and other occasions. Then it is very important to learn the basic maintenance of the camera.

Maintenance of analog camera

First find the NBC connector on the hard disk video recorder (monitoring computer) side, unscrew the metal tube and check whether the internal wiring is good. If there is any problem, it can be welded or clamped again.

Move the ladder to the faulty camera, open the BNC connector of its own video signal line, and check the wiring status. The treatment method is the same as the first step.

If no problem is found in the above two steps, the on-off detection of the video signal line is carried out, and the on-off measurement is carried out at one end of the line with a multimeter, so that the fault of the video signal line can be judged. If the cable is broken, replace it or find a breakpoint to connect it.

If there is no problem in the above steps, check whether the power adapter and power cord are faulty. Observe. The indicator light on the camera is used to determine whether the power has been supplied, and the output voltage of the adapter is tested with a multimeter to determine whether the adapter is in good condition. If it is still normal, you can determine that the camera is faulty and find a manufacturer to repair it.

digital camera

Generally, webcams are powered by network cables, commonly known as POE. Let's look at the indicator light of the camera first. If the light is on, we can be sure that the power supply is normal, but we can't be sure of the quality of the cable.

Test the quality of network cable with network cable tester. If the cable doesn't work, you can try to make a new crystal head to solve it, or you can connect the camera with a good network cable and test it again to troubleshoot.

If the cable is normal and the power supply is normal, it can be concluded that the camera is faulty and returned to the factory for maintenance.

What is the reason why the surveillance camera is blurred? How to fix it

If it is not because the glass cover in front of the camera is dirty and blurred, it is likely that the lens is foggy or out of focus. The former can be solved by itself, and the latter two reasons need to be sent to the after-sales, which is difficult to solve.

Ambiguity has the following possibilities

1. There is too much dust in front of the lens and infrared light. Wipe it with alcohol to see if it is normal.

There is something wrong with this camera. After a long time, electronic equipment is aging. Replace the new camera.

3. The zoom camera does not focus well when autofocusing, resulting in blurring. It is recommended to zoom or focus again. If not, then the camera is broken.

What is the reason why the surveillance camera is not clear?

It is useless to change the 8mm camera, which is only related to the distance of the photo. The number of rows is too low. It should be line 420 or Sharp chip.

How to repair the blurred surveillance camera

There are several vague situations.

1, the lens in front of the lens has dust after long-term use, which leads to blur. You can scrub the lens with alcohol.

2. The lens part of the camera is loose, resulting in inaccurate and blurred focusing. Turn on the camera and twist the lens to see if it is loose.

3. The lens part of the camera is broken, which leads to blurring. Replace the lens part of the camera.

4. The camera is aging for a long time, resulting in blurring. Replace the camera.

Some of them are getting old and there is nothing we can do about it. Some of them are out of focus, and this one can be adjusted when it is dismantled.

The surveillance camera is not clear

Unclear images are usually caused by power problems:

1, power supply is insufficient (see if the transformer is safe enough, and then see if the wiring ends fall off,)

2. Is the video cable connector normal? How many meters did the video line length pull? It can't be too long, it will decay when it grows.

3. If it's hot, buddy, you have to change your head.

Recommendation: check the line,

It was not a TV set when I bought it, but a professional-grade monitoring CRT, also called a monitor.

The computer at home is LCD, which is definitely not effective, and it is civilian-grade. At least it will be better if it is a liquid crystal display, but it will always look comfortable without CRT, and the particles will be blurred.

What is the reason why the surveillance camera is not clear?

Line quality and distance, camera quality, camera power supply is appropriate.

What is the cause of camera blur?

Out of focus

What is the reason why the monitoring picture of analog camera is not clear?

Generally, the highest analog line is 700 lines. Now in the era of digital high definition, all videos are relatively clear, in contrast, analog images will be more unclear.

Canon digital camera lens is wrong, how to repair it?

Canon digital camera lens error, the camera can not be used, need professional maintenance. The faults may be as follows:

1. The camera lens is damaged by external force, so it can't expand and contract normally, and the deformed and damaged parts need to be replaced;

2. The lens elements of the camera are damaged due to aging after long-term use, and cannot be opened normally, so the corresponding elements need to be replaced;

3. The moving parts of the camera lens are worn, which affects the normal use of the lens and needs to be replaced.

Camera fault handling method

What are the common faults and maintenance methods of camera maintenance tutorial?

One: If there is no image in the camera, it is necessary to check whether the power supply is properly connected and whether the power supply voltage meets the requirements (power supply error: DC12 V+10% AC24V+5%); Check whether the BNC head or video cable is in good contact; See if the automatic aperture of the lens is open; Check whether the control line of automatic aperture lens driven by video or DC is short-circuited to ground; Check whether the video is leaked, causing the CCD triggered video to burn all the way.

Two: if the imaging quality is not good, check whether the lens has fingerprints or is too dirty; Whether the aperture is adjusted; Poor video line contact; Whether there is a problem with the electronic shutter or white balance setting; Whether the transmission distance is too far; Whether the voltage is normal; Whether there are interference sources nearby; Whether the CCD of the trigger is uneven; Check whether the lens is C-type interface or CS-type interface. If it is a C-type interface, it must be bordered; If it is a CS interface, the baffle should be removed.

Thirdly, if the image is distorted or geometrically distorted, check whether the optical lens used is abnormal; Whether the output impedance switch of the monitor is set at the end of 75 ohms; Check whether the impedance of the video connection cable used is 75 ohms.

Four: check whether there is water mist like white fog inside the body; Check whether the lens sleeve is close to the glass; Check whether the fuselage has a lens cover; Check whether there is water mist in the CCD of the trigger; Check whether the electronic shutter of the machine is open (if it is, please close it).

V: The voltage of each key point in the circuit is detected by voltage detection method to judge the fault point. 6 disconnection method When there is a short circuit or excessive current in the circuit, this method is used to reduce the fault range. Resistance detection method is used to judge the quality of a certain part of the circuit. 8 Current detection method judges the fault by observing the current value. 9 Touch method to open the chassis, touch each component (chip) with your hand to see if it is overheated or exceeds the normal temperature, that is, if your hand can't stay on the component, you will feel abnormal heat, and then judge the fault point.

Six: The camera has two faults. The first is power failure. If you don't have a panacea, the most intuitive thing is to cover the camera and leave a gap in the road to see if infrared lamp is open. If it doesn't light up, it's a power failure, and then feel the temperature of the camera with your hands. If it gets a little hot, infrared lamp will be broken.

Seven: If the power supply is normal, the camera is broken, and the BNC connector behind the camera is also in poor contact. Of course, the video line should also be checked.

In short, surveillance cameras have been widely used in life and work. In the user's application and purchase, if the camera is broken, you can try to use the above skills to repair the machine. Of course, in addition to maintenance accidents, daily maintenance is also very important. Although there may be various failures, as long as the quality of the selected equipment and equipment is well controlled and the construction is carried out in strict accordance with standards and specifications, there will generally be no major problems. Even if there is, as long as you think calmly and don't blindly disassemble, you can solve the problem better.