letullio 0 Posted April 10, 2018 Hello everyone. I write to you because I have a problem with a DVR that I installed. Sorry for my bad english. Previously the client had a system with 4 generic cameras working correctly from a kit. I only changed the cameras and the DVR leaving the armed cable that they already had in place. (cable is without baluns) The DVR is a DS-7208HQHI-F1 The problem is: randomly shows a sign with the title Attention and with the message "The channel does not exist" and the OK button. He does it several times a day. In addition, the live view is changed to a single camera, usually to channel 8. That is, we are seeing 2x2 cameras from 1 to 4, and suddenly it is only passed to channel 8 in full screen. And since the DVR has only 4 cameras connected, there is NO VIDEO in full screen. I took it to the warranty and I left the customer a DS 7104HGHI. Result: in the guarantee the DVR says that it works perfect, and the 7104 the client does not present that problem. Confused with this episode, I left the client a new DS-7208HQHI-K1 but WHEN CONNECTING IT PRESENTS THE SAME PROBLEM. Can it be the old cable that is causing this inconvenience? Thank you for reading. I attach an image of the message that is shown every time. Share this post Link to post Share on other sites
tomcctv 190 Posted April 11, 2018 Hi. Sounds like recorder is in sequence mode. Switching between cameras which will show no connection on the ports there are no cameras. What type of cable is used ? Share this post Link to post Share on other sites
letullio 0 Posted April 12, 2018 Hi, thanks for answer. I've checked the sequence mode and it is disabled. But if it were enabled, the dvr will switch between cameras at the same seconds. I mean, every X seconds, the dvr will switch the camera. In this case, the sequence mode it is disabled and the message appears randomly along the day. I attached an image of the cable. It is prearmed. Share this post Link to post Share on other sites
letullio 0 Posted April 12, 2018 May that cable be causing that problems? I should replace it for utp cable and baluns? Previously, that cable was used by a generic ahd dvr. Share this post Link to post Share on other sites
the toss 0 Posted April 12, 2018 The cable you show is rubbish but will not cause the operational problems you are describing. Problems that cable MAY cause will be quality problems. I have seen wierd problems when a CVI camera is used on an analogue DVR. eg - parts of one cameras picture showing up in a different cameras picture. Check that all your gear is compatable . Share this post Link to post Share on other sites
letullio 0 Posted April 13, 2018 Yes, it is all compatible. The cameras are HD TVI hikvision 4.0 and the dvr is hikvision compatible... I think the same with the cable. The image quality is perfect but I don't know what to do... Share this post Link to post Share on other sites
letullio 0 Posted April 13, 2018 Ok, i will change the cable. But, do you say the problem is the DVR? Because i tried with two differents models ds-7208hqhi-f1/nio4a and DS-7208HQHI-K1 and i have the same problem. However, with the 720p dvr DS-7104HGHI. It works perfectly, although it is 720p and the cameras 1080p 2MP. Thanks in advance Share this post Link to post Share on other sites
letullio 0 Posted May 8, 2018 I have changed the cable. I have installed a new FTP cable with baluns and a power supply per camera. The message is still appearing. Does anybody have an idea ? thanks Share this post Link to post Share on other sites
CHOPRAMO 0 Posted May 8, 2018 Have you tried doing a factory reset and starting from scratch? Share this post Link to post Share on other sites
tomcctv 190 Posted May 8, 2018 Still sounds like a sequence problem. Look under alarms on channel 8 and you will see make large screen on detection you need to switch off all alarms Share this post Link to post Share on other sites
Securame 0 Posted May 8, 2018 DS-7208HQHI-F1 and DS-7208HQHI-K1 support 8 BNC channels, plus 2 IP cameras. It surely sounds that for whatever reason like it is trying to go to/show channels 9-10, which they do not have any IP camera configured. But that should NOT be happening by default. Is the end user using the mouse wheel to scroll through channels? Or is the unit showing that error without anyone touching the unit? Share this post Link to post Share on other sites