009jim 0 Posted October 19, 2017 hi Folks, I have a Kguard CCTV system (H.264 I think). It has stopped working. Based on my checks thus far, I suspect the motherboard has failed. The cameras are I believe all OK and I do not want to install new cameras. The specs for the cameras say they are "420TV lines". Newer systems I am looking at all refer to 720P, 1080P, etc. Can anyone enlighten me as to whether my cameras might be compatible with these newer controllers? Share this post Link to post Share on other sites