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 Post subject: CCTV camera questions
PostPosted: Fri Mar 09, 2018 11:48 am 
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I have about 4-6 cctv cameras connected to a DVR, having some issues:

- 2 indoor dome cameras are showing black/white> no color. not sure if its from camera itself or something else
-1 outdoor bullet camera show video loss. not sure how to check the cables

everything is wired from outdoor to dvr. is there a power that connect all these cameras placed somewhere or just the coax will push power? if so maybe i need to check attic and see if thats where power is located.

any advice much appreciated
thank you


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 Post subject: Re: CCTV camera questions
PostPosted: Fri Mar 09, 2018 12:23 pm 
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Hi. Your two indoor dome cameras might just have a light problem.

Get a tourch and shine it into your cameras and see if it goes colour.


Your power supply problem ...... If your system is a year or so old then yes you will have a power supply somewhere you will need to find it


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 Post subject: Re: CCTV camera questions
PostPosted: Mon Mar 12, 2018 10:02 am 
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I found the power supply unit that has all 8 cameras connected using the coax.

for the indoor dome cameras, if I unplug the coax and plug it back, the color show for 1 second then turn black/white. is that camera problem?

the camera that is not working and showing video loss, have to trace its wires and see why no signal.


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 Post subject: Re: CCTV camera questions
PostPosted: Tue Mar 13, 2018 6:13 am 
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Quote:
for the indoor dome cameras, if I unplug the coax and plug it back, the color show for 1 second then turn black/white. is that camera problem?

As tom posted, shine a light at the cameras, they may sense it is too dark where you have placed them, so they are switching to night vision (black and white).


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 Post subject: Re: CCTV camera questions
PostPosted: Wed Mar 14, 2018 11:03 am 
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51cent wrote:
Quote:
for the indoor dome cameras, if I unplug the coax and plug it back, the color show for 1 second then turn black/white. is that camera problem?

As tom posted, shine a light at the cameras, they may sense it is too dark where you have placed them, so they are switching to night vision (black and white).


I tried that and it still show black and white, the area is very bright, the weird thing is that when I unplug the black/red power cables from the transformer and plug back in, it show color for 1 sec and then back to B/W


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