of which two stopped working, and throws a code cp 1896 and turned black, they would be kind enough to inform me, where the fault is, first began one and later the other. Thank you very much. Oscar

Good. How long do the cameras have? It may be from the cameras or from the power supply of the cameras. A greeting.

I thank you very much for your response, but the team will place it in February of this year, so fast the sources may have been burned: all or work with different sources, I ask from my ignorance, thanks for bothering you.

Good. The cameras, the safest that each one has its own power supply, since if they are some away from the dvr, due to the voltage drop, it is best to bring the individual power supplies each, as close to the cameras. Check where the sources are, and if they give voltage of 12 volts output. A greeting.

Thank you very much for your response so it will have to be seen by someone who understands the subject, to see where the sources are and take the measurements, I thank you very much for your time. Hugs.

Touch where it should not and the problem was closed, without being able to thank you for your response, Thank you very much maxiprog, for your time and response.

Good! I know the subject is closed but the same thing happened to me and I wanted to know if this brand and model have that factory problem? thanks!

Good morning locopintin, look at the solution was the one that maximoprog gave me. I claimed the seller and I changed the cameras and I never had problems again. Embrace Success. tano33