CCTV Camera Connected but not showing image

[Rickus12]

hi guys, so ive recently installed XVR cctv cameras. The cameras worked 100% until last week. Only 7 of the 8 cameras are now showing image. Ive changed the cable and the result was the same, ive tested to see if the camera was the problem but the lights came on that are on the front of the camera. I went to the settings to check the status, it said its not connected, what can the problem be?

 

[gavin286]

Change the cables on the NVR with a known working camera, or change the camera to a good one. You can then see if its the camera or the NVR

 

[ZX_Master]

Have you put the camera not showing an image onto the cable of one of the other 7 that are to see if you receive an image from it, or taken one of the 7 that are working and put it onto the cable of the one not showing an image to see if the cable itself is damaged?

 

[Rickus12]

Have you put the camera not showing an image onto the cable of one of the other 7 that are to see if you receive an image from it, or taken one of the 7 that are working and put it onto the cable of the one not showing an image to see if the cable itself is damaged?

Yes I have. So for example. I've changed the one room cable (faulty) with the working kitchen cable. And still nothing happened. The kitchen camera still worked but not the room

 

[gavin286]

Yes I have. So for example. I've changed the one room cable (faulty) with the working kitchen cable. And still nothing happened. The kitchen camera still worked but not the room

Must be the specific port then...