CCTV Camera gone Black and White

[Rudie]

Hi,
One camera on my setup (16ch NVR Qvis Quattro) has gone black and white.
It was working perfectly, but since it lost colour, i have checked connections at DVR end/cleaned the lens/Flashed light into the sensor (which didnt activate colour mode)/covered and uncovered the lens to hear the 'click' of the cam going in and out of IR mode.
Cameras are all TVI. The channel type is set to AHDH x 16 (is this correct?)
Does anyone know what else to check apart from replacing the camera?
Thanks in advance.

 

[Handymanjo]

Power camera down and then 're apply power to that camera
Are you using balun as a connector ?
Could be faulty Balun

 

[SandyLyon]

As above, if no different try changing camera inputs over at DVR end to confirm camera issue.

 

[Rudie]

Hi, thanks for the replies.
Using male 2.1mm dc power connectors on the cams with a qvis 18 port 20a power unit.
I have tried connecting the cams at the dvr to another spare port with the same black and white picture.

 

[Handymanjo]

Are they connected to dvr via bnc connector or a Balun ?
Possible faulty camera

 

[Rudie]

Hi, connected to dvr via BNC connector.

 

[Rudie]

Does it make a difference if the cam is connected via BNC or Balun?

 

[sparkymarka]

No

 

[Rudie]

Thanks. Just wondered.

 

[sparkymarka]

Hi,
One camera on my setup (16ch NVR Qvis Quattro) has gone black and white.
It was working perfectly, but since it lost colour, i have checked connections at DVR end/cleaned the lens/Flashed light into the sensor (which didnt activate colour mode)/covered and uncovered the lens to hear the 'click' of the cam going in and out of IR mode.
Cameras are all TVI. The channel type is set to AHDH x 16 (is this correct?)
Does anyone know what else to check apart from replacing the camera?
Thanks in advance.

Is there an option for TVI instead of AHD ? As they are different formats , is the camera a multi format camera ?

 

[secureiam]

you have 16 cameras and one has gone B&W, working perfectly for how long?

They are all TVI but DVR/NVR is set to AHD?

sorry I don't follow if all the other cameras are okay, it would strongly point to one camera / cable/setup etc being the issue, you can swap cameras round easy enough if they are all the same type.

you should obviously have the correct setup/ mode for each camera,

 

[Rudie]

@sparky
There isnt an option in the channel type for TVI unfortunately, else i would have selected that.
Yeah camera is a 4in1 onyx so can set the type of camera up during installation.

@secureiam
Everything has worked fine for over 18months
I will take down the cam this week and try different cable and port - already tried to plug the DVR side cable into another port without joy.

Thanks.

 

[sparkymarka]

Is the type with the joystick ( push for 5 secs in one direction for TVI/CBS/AHD/CVI) power down and reselect AHD

 

[Rudie]

Dont think so, i'll check this weekend and update.

 

[Rudie]

Is the type with the joystick ( push for 5 secs in one direction for TVI/CBS/AHD/CVI) power down and reselect AHD

Sorry for delay. I’ve taken the camera off.
Has no joystick on there.
The cam does click when I cover the lens but does not go colour when I uncover.
I’ve tried a different rg59 cable and still b&w