Why Hikvision analog CCTV camera showing No Video on monitor – This article describes my experience repairing a Hikvision analog camera that showed a “No Video” message on the monitor. One day, while I was enjoying a public holiday, a customer contacted me about a problem with their Hikvision camera. They wanted me to come and repair it that same day, but since it was a holiday, I politely declined. I assured them that I would visit the next day instead, and they agreed.
If you are facing the same problem, be sure to read this article to the end. In this guide, I will explain how I fixed a Hikvision analog camera that was displaying a “No Video” message.
Why Is My Hikvision Analog Camera Showing “No Video”?
There are two types of Hikvision cameras: analog cameras and IP cameras.
In some regions, Hikvision analog cameras are no longer the primary choice. This is because in more developed countries, users prefer IP cameras. This is due, of course, to the ease of installation and maintenance. However, in some regions, like where I am currently, Hikvision analog cameras are still the preferred choice. This is due to their lower price and satisfactory results.
From my experience, Hikvision analog cameras display No Video on the monitor due to:
- CCTV power supply problems (low voltage/no power)
- Loose/corroded BNC connector
- Corroded DC connector
- Corroded power cable
- DVR port damage
How Do I Diagnose a “No Video” Issue on a Hikvision Camera?
As promised to customers, I came on the appointed day.
The first thing I did upon arriving at the location was check the monitor display. And sure enough, there were three “No Video” displays. This meant three Hikvision analog cameras were faulty. As a technician, it’s crucial to see the problem firsthand.
This is a photo of the monitor screen when I arrived at the location.
Here are my steps to diagnose “No Video” problem on Hikvision camera.
Checking the Power Supply & BNC Connector
Still in the office, I then checked the CCTV power supply and the BNC connector on the DVR. The power supply was in good condition, and the camera’s BNC connector on the DVR was also properly installed and free of any loose parts.
This concluded the office equipment inspection.
Cable and Voltage Check
I then inspected the cable lines. There was likely a break. However, I didn’t see any broken RG6 or CCTV cables at the location.
I then checked one of the cameras that wasn’t displaying a “No Video” image on the monitor. Using a digital multimeter, I measured the voltage on the camera’s power cable to verify that it was receiving power. Hikvision analog cameras require a 12V DC power supply, but the multimeter read 0V. This indicated that the camera wasn’t receiving power, which was likely the reason for the “No Video” message on the monitor.
Cause of the Problem: Corrosion at the Cable Connection
After tracing the CCTV camera cable path that stretches in the outdoor area, there was a section of cable that I thought was suspicious. After getting closer, I already guessed exactly what the problem was here.
I found corrosion at the cable connection, which prevented the camera from receiving power.
Below is a photo of the connection that I captured.
Upon inspection, I found that a previous technician had already repaired the system. However, the cable splice was done outdoors and poorly sealed, which likely led to corrosion and signal issues.
The fix I applied was to re-terminate the cable connection. I removed the corroded section of the cable and replaced it with a new cable along the affected length. After properly reconnecting everything, all cameras that previously displayed a “No Video” message began showing images on the monitor again. As a final step, I always verify that the hard drive is still functioning correctly and adjust the date and time settings if necessary.
After the repair, I recommended the customer replace the cable immediately. If the cable isn’t replaced, this problem will likely recur in the future.
Tips for Installing Analog CCTV Camera Cables Outdoors
Beginner technicians often say, “The important thing is that it’s connected.”
Technicians need to understand that although analog CCTV camera cables can be installed outdoors, they won’t last long. Cables will corrode (especially power cables) if exposed to direct rain and heat. Therefore, use protective equipment such as conduit to ensure the cables last longer.
Based on my experience, analog CCTV cables (RG6/RG59) can only last approximately 2 years if installed outdoors without protection.
Frequently Asked Questions (FAQs)
Why is My Hikvision Analog Camera Not Sowing on My Monitor?
In this case, the camera does not appear on the monitor because the power cable is corroded. This causes the power supply to the camera to be interrupted.
What Are RG6 and RG59 Cables?
This is a cable commonly used for installing analog security cameras.
Why Do RG6 and RG59 Camera Cables Corrode?
Although they can be installed outdoors, RG6 and RG59 cables will not last long. Direct exposure to heat and rain will accelerate corrosion of the cables.
Conclusion
The “No Video” display on a Hikvision camera can be caused by several factors. In this case, the issue was caused by corroded cables. If you plan to install analog CCTV cables outdoors, it is recommended to use cable protection such as conduit to protect the cables from rain and direct heat. Although installing cables in conduit is more expensive, it significantly extends the lifespan of the cables.
I hope this article has been helpful. If you’re facing the same issue, the steps above may help you resolve it. If you have any questions, feel free to leave them in the comments section below.
