Your camcorder began to show poorly?
It may take some time to find out the real situation and the participation of an experienced person is desirable. If nothing can be fixed, everything has been tried, ask your question to our technical support or write-call. We will try to help you too!
Poorly wired connectors
What exactly is the problem with the connectors?
Maybe just a poor quality connector. Marriage. The connector may not be securely seated, loose. Over time, it oxidizes, and weak contact disappears altogether. The camera stops working or there is interference.
Braid hairs may touch the core. In this case, nothing will work right away.
In any case, slight wiggling of the connectors should not result in interference or loss of signal from the camera. If this happens to you, then you need to make repairs.
Pointers from power networks and electrical equipment
The problem looks like a semi-transparent wave-like distortion of the image. The interference seems to be walking. Sometimes the image gets better, but sometimes it gets bad. This reason often occurs in production and is a design error for the passage of cable routes.
Somewhere near the cable route there is source of interference, which affects the signal flow, distorting it.
Insufficient power supply unit
This problem does not occur very often, but it can be very difficult to fix. The problem may look like image disappearance from street cameras at night. At night, the camera switches to night mode and turns on infrared illumination. This requires additional power supply. If you do not take into account the additional load at night, then a similar problem can occur. Or, the cameras farthest from the power supply show noticeably worse. In general, a competent calculation of the power supply unit. The key to the successful operation of the entire video surveillance system!
To solve this problem, you need to change the power supply to a more powerful one.
Precipitation or dirt on the camera lens. Broken cable or failure of the camcorder
It manifests itself as a complete loss of the image or the appearance of any uncharacteristic properties of the picture (for example, the picture turns purple). The latter indicates a malfunction of the camera.
Try to replace the problem camera with another one that works. It will immediately become clear what the matter is. In a camera or in a cable.
The cable can be “ringed”. It is necessary to turn off the power and turn off the camera. The dialing is performed to find two problems: short circuit and cable break. To search for a short circuit, a tester must check whether there is contact between the central core and the cable winding. If there is. This is a short circuit. It is better to replace the whole cable. To diagnose a break, you need to close the central core and braid on one side, and connect a tester on the other. There should be a short circuit. If there is no short circuit, then the cable is broken. It is also better to replace it.
Unclear and unexplained reason
Your camcorder stopped working?
Hello Gennady! The problem itself is clear. This usually occurs when the camera is behind glass and “looks” at the street. When you turn on the IR illumination, there is an illumination from the reflected IR light from the glass. In dome cameras, the transparent casing is made of plastic, which is NOT illuminated by IR illumination.
Therefore. You need to check what may be interfering with the IR rays. I would first take a camera and turn it on at home in a dark room. Will there be flare or not? Further, if there is flare, then obviously something leads to this. I, of course, read that rubbed with alcohol and, in general, contamination comments. But still, I would like to draw your attention to the fact that you cannot wipe transparent plastic with alcohol. She grows cloudy from this.
In general, I think that your problem is not in the camera itself, but in the transparent casing. Or there is still some kind of pollution. Or the plastic is cloudy from alcohol. Or there is some kind of film (the film must be removed). In my opinion, there can be nothing second.
Vladimir, hello! After 4 years of operation, we recommend changing the connectors “without looking.” For such a long time, the metal could rot, and there, though small, but the voltage. This only accelerates the oxidation process. If replacing the connectors does not help, then you need to remove the camera, clean it and carefully inspect if there is any damage.
It was a good camera at one time. Unfortunately, the HD-SDI standard did NOT take root and was pushed out of the market by AHD, TVI and CVI. This I mean, if you have to change the camera, then the recorder too. T.K. It will be very, very difficult to find HD-SDI cameras on sale now.
Hello Sergey! There can be many reasons. It’s difficult to say for sure right away, so you need to act by the method of exceptions. Otherwise, you will spend a lot of time and not the fact that you can work. Start by disconnecting all cameras from the DVR and from the power supply. Leave only one. It is better to remove the camera and check it “on the table” using a short cable. The working chamber should work confidently at a voltage of 12V. The voltage must be changed under load, i.e. When the camera is on. When one camera works “on the table”, Connect all the others “on the table”. Plug in one at a time and see what happens. We measure the voltage. Make sure that all cameras work “on the table” at once. Then start to install cameras one by one in the place of their constant work and see what happens. As soon as the camera starts to clutter, think about what’s changing. The connectors may be poorly crimped (with slight movement, interference should NOT appear). There may be a lack of a camera. If the other camera works well in its place, then you should think about whether the first one is damaged. In general, 99% of all interference occurs due to inaccurate installation.
Unfortunately, the exception method can be time consuming. But this is the only way to find and fix a malfunction in the video surveillance system. If the camera worked before, but suddenly began to show poorly. You also need to test. We need to swap cameras and look for the reason. The worst. This is guessing and drawing conclusions, not having enough reason. For professionals, this is common. So if nothing happens at all, then try to invite a specialist. He will definitely help!
Fixing video loss issue in CCTV systems. Fixing the problem with video loss in CCTV systems
Loss of video signal. a very common problem that can be encountered when working with a video surveillance system. This causes your cameras to suddenly stop working and a video loss message is displayed on the monitor. over, the message in the loss of signal Occupies the entire screen or images from cameras are simply dimmed.
In this article, we will look at the common causes of the video loss problem that occurs and show you how to fix the problem.
The very loss of video signal means that the DVR (or any other recording device) is not receiving a signal from the camera. Video loss can come in many forms. For example, the video monitoring system loses the video stream on only one camera or on all of them at the same time.
In some cases, the video turns on and off, or video loss occurs only at night, and during the day the system works normally. The end result is the same anyway, your cameras are NOT showing any image.
over, video loss can occur with any type of equipment. analog DVR, HD-DVR, HD-TVI, HD-CVI, AHD, NVR, IP cameras, etc.
In most cases, the problem of video loss from CCTV cameras, DVR or NVR is caused by several factors: network problems, poor power supply, cable problems, faulty hardware, camera software errors, IP address conflicts, incorrect system configuration, etc.
Below we will list the most common reasons why your system shows “video loss”, and how to solve this problem.
Insufficient power supply
Quite often, an inadequate power supply is the main premise that you are NOT seeing video or video loss occurs. This is especially true if your security system shows the following symptoms: no video signal on the screen, black screen, camera turning on and off, video flickering, video loss at night, “video signal present” message, cameras arrived, NVR or DVR shuts down randomly.
Simply put, the camera does not receive the necessary current from the power supply and not enough power for the normal operation of the devices, hence the loss of video.
Reasons why the power supply does NOT provide enough power for your cameras / CCTV system:
How to fix video loss due to insufficient power supply:
- Thoroughly check all power connections, power and cable connectors, splitters, cable splices.
- Try using a different port on the PoE switch to make sure it is drawing enough power.
- Try a different port on the power supply (if you are using a DVR system)
- Test the PoE switch to make sure it is supplying power to all cameras at the same time. If you are using an NVR with built-in PoE switch, try a different port to see if video appears on the screen.
- The PTZ camera consumes more power, please make sure the system can provide the proper power supply for THESE types of cameras. Use a PoE switch / injector designed for PTZ cameras.
- When the IR illuminator is turned on at night, the CCTV camera needs more power. If some cameras only show video loss at night, please make sure the power supply provides sufficient power.
- Make sure you select PoE switches or injectors accordingly. Try another PoE switch if you suspect your switch is NOT providing sufficient power.
- Try using shorter coax or Ethernet cables to power your CCTV cameras. Choose a higher quality cable for your system.
- If the camera is running on batteries, make sure they are NOT depleted.
Bad cable or connections
Cables are an essential part of a reliable CCTV security system. Coaxial cables or Ethernet network cables can interfere with the operation of CCTV cameras. Both HD coaxial surveillance cameras and IP cameras can show video loss if cables are not properly installed. Wired CCTV cameras are more likely to encounter cable related issues such as no video or video loss.
To fix problems with the cable of the video surveillance system, you must:
- Check the cables to make sure they are not bent or kinked too much.
- Do a general inspection of the tracks to ensure there is no degradation or damage caused by weather or animals (such as squirrels, mice or rats).
- Test the cameras with the connecting cable, just see if the image appears on the screen. Maybe everything is fine with the management, but the camera itself is out of order.
- Use well-known cables.
- There are too many IP cameras on the network. You must group them in a separate network.
- Insufficient bandwidth of PoE switch or NVR.
- Long distances between CCTV cameras and routers. Especially if you are using wireless security cameras, even wired cameras Must work at certain distances from recording equipment.
- Wi-Fi signal does not cover areas where your cameras are installed.
- Too many Wi-Fi signals may cause interference or interruption.
- Wi-Fi signal is unstable. this is the case if CCTV cameras turn on and turn on randomly.
- The connectors are loose. Check that the connections are correct and that the plugs are fully inserted into the sockets.
If you have installed a wireless security camera and the live image randomly turns black, or appears or disappears, it may be caused by a weak Wi-Fi signal. You will see a message on the TV screen about signal loss, no video, or just video loss.
You can fix video loss due to weak internet signal or low bandwidth in the following ways:
- Check your router specifications and settings to make sure the entire area can be covered.
- Place CCTV cameras near your Wi-Fi router.
- Make sure the PoE switches can support all traffic coming from the cameras. When using multiple switches Ensure connections are made through gigabit ports.
- Connect the connectors and disconnect the PoE switch or injector. Check them out. Make sure you have network problems. Design a reliable network infrastructure.
- Isolate IP Security Cameras with VLANs.
- To see if the IR LEDs are working, cover the camera’s eye with your palm and see if the IR LEDs turn on.
- In some cases, the IR illumination is turned off. Go to the video surveillance program and before the camera settings, using the option to turn them on automatically.
- Use external IR illuminators or floodlights if necessary. With sufficient lighting, the camera will provide a clear image.
In some cases, the purchased camcorder supports a second type signal than the DVR to which you are trying to connect it. In this case, a “video loss” or “video available” alert will be displayed. If you install equipment from different manufacturers, please make sure they are compatible with each other. Check specifications and controls. For example, HD-TVI recorder will not display HD-CVI camera.
Secondly, higher resolution CCTV cameras like 4MP, 5MP, or 8MP are not compatible with NVR or DVR, which are designed to decode only 2MP cameras. If you connect a higher resolution camera to a 1080P DVR or NVR, you will see a video loss message on the screen. Examine the parameters of the equipment before buying.
- If you buy cameras from different manufacturers, check with the manufacturer or reseller if the signals are compatible.
- Use the same brand of NVR / DVR and security cameras. Make sure the DVR / NVR can decode the video coming from the camera.
- Make sure DVR or NVR supports camera resolution.
If two IP cameras are on the same network and have the same IP address, they will conflict with each other, resulting in video loss on your system. Each device on the network must have a unique IP address.
To fix the conflict of IP addresses in the security system, you must:
- Scan the IP addresses of your CCTV cameras to see if there are conflicts, such as duplicate IP addresses on the network.
- Ping the IP address before assigning them to the IP camera.
- Make sure you have assigned the correct gateway for the camera or DVR / NVR. Incorrect (or missing) gateway can cause video loss.
During a Thunderstorm, your DVR / NVR or cameras may be burned if the grounding is wrong. In the second cases, the camera board will be damaged and you may see moving horizontal or vertical lines on the TV screen.
The reasons that can cause a power surge in security systems are as follows:
- Installing a CCTV camera on a metal or any other conductive surface Lightning strikes can set fire to an entire CCTV system.
- Strong Thunderstorms.
- Grounding is incorrect or NOT at all.
- Electromagnetic interference from other electrical devices or transmitters.
- Use surge protection filters or lightning protection filters to protect your CCTV system from lightning.
- Deploy a UPS (Uninterruptible Power Supply) in your CCTV security system to keep CCTV cameras running even in the event of a power outage.
- DO NOT install the camera on a metal surface or, if necessary, put a block of wood between them to make the installation non-conductive.
- Ground all your CCTV equipment in accordance with the instructions for use of each device.
- Update your devices: NVR, DVR or IP cameras to the latest firmware. Contact manufacturer or retailer to get the latest version.
- When CCTV cameras or DVRs constantly fail, it’s time to get a new and reliable security system. Examine the equipment before buying.
Have you tried all the solutions listed above and followed all the troubleshooting tips, but still video loss occurs? If so, your camera may not work at all, it may be damaged, burned out, or simply out of order. In this situation, you need to purchase another CCTV camera. Make sure it’s the same technology and type as your current camera.
To avoid video loss, make sure you buy a reliable security system. Study before buying and read online reviews to choose the right video surveillance system.
Well, in the end, we remind you that since 2010 our company “We’ll Record Everything” has been installing, modernizing and servicing any video surveillance systems, as well as video intercoms and the Moscow region. We work quickly, efficiently and at affordable prices. You can see the list of services and for them here.
Call 7 (499) 390-28-45 from 8-00 to 22-00 any day of the week, including weekends. We will be happy to help you!
Why is the camera transmitting a bad image? 12 solutions. The main problems of poor image
One of the biggest problems you can face. These are CCTV camera imaging issues if you don’t follow the HD security camera buying guide carefully.
Is your security camera not showing the image or is it blurry during day / night? Are you getting strange blurry images with poor image quality? Shows a double image? We will answer all these, and not only, questions in our article.
Burnout in the sun
It is widely believed among the public that if a CCTV camera is designed for outdoor use, it means that it is impervious to almost everything. This is simply not the case. The sun is more than capable of destroying your cameras if you’re not careful. Direct sunlight hitting your camera lens will eventually hit the image sensor. Over time this will start to create distortion on the glass, but it is nothing compared to the effect it has on the image sensor. Before long, you will start to see some pretty terrible video degradation; this includes blur, contrast changes, and ultimately blackout. Of course, no one specifically aims their camera at the sun, but the sun is moving, and this must be taken into account when installing video surveillance. Monitoring or watching a video for the first few days after installation will show you if this camera needs to be configured or not. Look for any obvious highlights. They don’t always have to come directly from the sun. Highly reflective surfaces are just as harmful. Wide dynamic range (WDR) is not a solution and will NOT save your camera.
Infrared (IR) glare
Infrared glare is a common problem if you are installing the camera under a cornice or ledge and aiming the camera so that the curtain rods are in the camera’s field of view. If the camera has night vision (infrared IR LEDs), then it will have IR reflection, either causing glare on the camera or causing the camera to change its electronic shutter to compensate for the glare. If you look at the image on the right, you can see that the top of the image is very bright where the reflection occurs, and the rest of the field of view is dark. This is because the camera tries to reduce glare by making the image darker by changing its automatic electronic shutter, which effectively makes the rest of the field of view too dark to see anything. The solution is to direct the camera downward and remove all objects near objects / walls from the field of view.
Among the professionals who really know what they are doing, there is a general rule of thumb: “Never mount your cameras on a metal surface.” We’re paraphrasing, but you get the idea. Electric waves. A really big reason for this, but electric currents are passing through. Another. This phenomenon is usually the result of improper connection of something, and this current comes into contact with a conductive surface. This current will move wherever it can, and will eventually flow directly into your chamber if it is NOT insulated. If you find that you are unable to mount your camera to anything other than a metal / conductive surface, you need to find a solution. First, attach the wooden block to this surface, and then mount the CCTV camera to the block. This is the simplest and most effective solution.
Complex ground loops are really boring to explain, so it’s easier to explain. Ground loops arise for several reasons, but this problem will always manifest itself as horizontal lines running through the shield. Faulty power supplies or faulty cable are a common culprit, but faulty home / building wiring is much more common. If you find that the picture problems are related to the power supply or cable, you just need to replace them. However, if the problem is found to be bad wiring in the structure, then find it and then repair it. It’s not exactly fast or cheap. This is where ground loop insulators appear. To do this, there are simple adapters that attach to the back of the camera and then filter this electrical noise from the video stream.
Source of power
There are a few things that can go wrong with the power supply, but related issues will always show up as “moving lines” in your video. These are the horizontal lines on your screen that usually move from bottom to top; lines moving in the opposite direction. Your camera image will remain behind These lines and will NOT move with them. This can often be confused with lines that can be obtained from a grounding problem, but the lines caused by the group cycle will remain in one static position.
12 Solutions to Fix Camera Image Problems
What Causes Your Security Camera Image Quality Problems?
In fact, the factors that cause your CCTV camera’s picture problems, such as blurry, no picture display, night vision problems, or green / pink screen display, can vary. Here are the main reasons:
The camera lens is dirty;
The cable length may be too long;
Varifocal magnification cannot be automatically focused;
Your camera resolution is too low (not good image quality)
Wi Fi signal is too weak or Wi Fi is NOT stable;
Your monitor is in low image resolution;
Whether you are using wired or wireless security cameras, the troubleshooting solutions below can help you solve imaging problems.
When the image from your security camera is fuzzy or blurry
Check the IP camera lens for dirt, dust, cobwebs, etc., Clean the lens with a soft and clean cloth. DO NOT use harsh or aerosol cleaners that can damage the lens.
Check the specifications of your camcorder to make sure the cable length is within the proper range. If you are using a wireless camera. Make sure the camera is NOT too far from the router.
For a variable focal length camera, you need to adjust the focus and zoom settings. Remember that varifocal cameras require adjustment from time to time. If the security camera is unable to focus, images will be blurry.
If your CCTV camera does not display images
Try the following troubleshooting methods:
Check if your security camera’s power supply is working properly.
Test your security camera on a different port of DVR / NVR.
Swap input cables to see if it matters.
Make sure the video formats that your CCTV cameras and DVRs support are compatible.
Helpful Tips for Solving Image Color Problems
If your CCTV cameras show green or pink images, use these proven tips to troubleshoot your CCTV camera color issue.
Move the security camera to a different location to see if the problem remains with that camera;
Manually turn on and off the IR light several times to see if it works.
Power off and on the camera again.
If your security camera image is too bright
Your camera image quality problem may be that it is too bright. And you can try 4 solutions:
Do not point the camera directly at a light source, such as the sun or a point light source;
If your camcorder has an adjustable sun canopy, slide it forward to block out excess light;
Adjust brightness and contrast settings;
Move the camcorder to a different location.
If the image is too dark
If your camera image is too dark or unclear, try the following solutions to fix it:
Adjust brightness and contrast settings;
Reposition the camera or move it to another location;
Move the adjustable canopy (if installed on the camera) back to give more light.
Check camera resolution or video stream
Make sure you have set the correct camera resolutions. A 720p or 960H camera may NOT capture clear images or videos. If you are using a 4MP (1440p super HD) camera, please make sure the resolution or video stream is set to 2560 × 1440 or at least 1920 × 1080.
If you are using a monitor to view video, make sure it has the standard resolutions for your cameras.
Check NTSC or PAL
NTSC and PAL. These are two completely different types of video coding systems. They come in different resolutions and frame rates, and different countries and regions will use different types. If you are using a CCTV camera that is NOT compatible with one of them, the video screen may be covered with black lines, which shake in place.
Tip: Most camcorders can play video in both formats. In any case, you should read the specifications carefully before making a purchase.
Make sure the camera has an infrared filter. Night vision
But not all CCTV cameras have high quality night vision and if your camera lacks an IR cut filter it will cause your image to be blurry at night and you will NOT be able to use it outdoors.
Be aware that certain ambient lighting in a room can also cause image quality problems. Buy a high quality night vision security camera.
Check the power supply of the CCTV camera
If you see “sliding lines”. Horizontal lines on the screen that will usually move from bottom to top, or vertical lines that move from one side of the screen to the other side. This can often be caused by a power supply loop ground problem or malfunction. Make sure your wired (PoE) or wireless (Wi-Fi) power supply is working properly.
Upgrade to the latest firmware
Most CCTV camera manufacturers or companies will regularly provide new firmware for bug fixes including image-related troubleshooting or flickering issues.
Tip: Follow the instructions carefully when updating the firmware. Make sure you download the firmware from the site that is correct for your camera.
reboot the camera
You can try the golden rule of “RESTART” when you find that your camera has image quality problems. It doesn’t work 100%, but most problems can be fixed.
Contact the company that installed your video surveillance
Most of the companies providing video surveillance installation services offer technical support. Give them a call and describe the image quality issue in detail so that the technical support team can quickly fix the issue.