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How to do when there is no image from AHD camera?

  • Author:May
  • Source:www.mvteamcctv.com
  • Release on :2017-04-10
When you connect AHD cameras to DVR,but there is no image from cameras on the screen,then how to do? Here we will guide you how to exclude every causes. 

1-Firstly ,please confirm there is no problem with DVR or AHD cameras .
As we know if you connect several cameras to a DVR at the same time , but all cameras  have no image.there should be some problem with DVR.Then please check and confirm :
1)The power adapter of DVR is well. Please change other power adapter to try .
2)The TV system of DVR must be same with cameras.You can enter the menu of MVTEAM DVR as below to check it .
How to do when there is no image from AHD camera?
3)The resolution of DVR must be higher than AHD cameras. For example 3MP cameras can not work with 2MP DVR. You can enter the menu on MVTEAM DVR as below to check the resolution .
How to do when there is no image from AHD camera?
4)As MVTEAM DVR is hybrid type which can which can support AHD,TVI,CVI,CVBS,IP cameras together. So if the DVR is not with AHD mode,there will be no image.Then please check DVR’s mode as below:
How to do when there is no image from AHD camera?
5)If the above factors have been excluded,but there is still no image from cameras .please check your video cable (VGA/HDMI) and your monitor .

6)If there is no problem with video cable and monitor and you use MVTEAM new UI DVR,please show the version information as below to us , we will send the newest update software for you to try .
How to do when there is no image from AHD camera?

2-When you connect several cameras to the DVR, but only one or two cameras have no image,then the DVR should be well and there is problem with cameras ,please check and confirm:
1)Please check the Infrared lamp,if it is off,there may be some problem with the power adapter.then please change another new one to try .
2)If the power adapter is well, please connect the camera to other well DVR separately to try .
3)If there is still no image , please change other BNC cable, sometimes BNC connectors loosen will cause this problem ,then just changing other BNC cable will be okay .
4)If power adapter,BNC cable and DVR etc are no problem .
There may be some problem with main board of cameras.
(Please note: If camera have been installed ,please take it out from the project to test.Sometimes the installation environment will affect us to exclude the cause.)


MVTEAM is a professional manufacture & exporter specialized in CCTV products including Wifi Smart Cloud IP Camera,Megapixel IP Camera, HD-AHD Camera, 5 in 1 Hybrid DVR(4MP,3MP,1080P,1080N),Wireless NVR Kit etc. If you have any inquiry about CCTV products,welcome to contact us.

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