adamfindlay

Hi, I'm hoping somebody might be able to shed some light on an issue I have. I have a Kare 4 channel DVR with 2 Kare cameras that I bought from amazon (see below) http://www.amazon.co.uk/Vandalproof-Weatherproof-Resolution-Detection-Recording/dp/B00WLJ38DO/ref=sr_1_4?s=electronics&ie=UTF8&qid=1448016320&sr=1-4&keywords=kare+4+channel That works fine in itself although I'm only using one of the cameras supplied (it came with 2) I have now bought another smaller camera (see below) http://www.lightinthebox.com/sony-effio-e-700tvl-ccd-mini-bullet-outdoor-invisible-10pcs-ir-940nm-leds-0-lux-night-vision-cctv-camera-4140-810-811_p2381033.html problem is I cant get them both working concurrently on my DVR. If I just have the new one plugged in on its own then it works ok but as soon as I plug the original one back in then the new one stops working (just displays a black screen) I know they are different qualities the original one is 720p and the new one is only 700tvl could this be the issue? Ive tried tweaking all the settings as you can independently change the resolution / frames per second etc for each channel but as of yet haven't had any joy. Part of me thinks it cant be anything to do with any settings though because if I unplug camera 1 then camera 2 starts working with the existing settings I have which must mean they are ok, but then plugging camera 1 back in stops camera 2 working. any ideas / expertise would be very much appreciated. thanks Adam