Hi all,
We recently built a rack mount DVR system to replace our old and slow 4 channel GV-250 system. We upgraded to a GV-250 8 channel card at the same time and have had some issues with the screen coming up with red and green. Say if we are watching the parking lot which is blacktop and it has a white car parked in it, when the system goes nuts the pavement turns red and the car is green for 5-10 seconds. We were at first thinking it was the auto iris on the camera, but they all do the color thing at the same time and then they will be ok for a few hours or longer and then they do it again. We have 5 cameras outside, four are Sony type and the other is a cheap off brand. Does this have something to do with the frame rate we have setup? The old 4 channel system never did this, we did add two more exterior cameras during our upgrade. We have put new ends on the RG59 as well as tried plugging one camera in at a time to try to isolate it to a single camera, with no luck. We are in the computer business so normally we would think heat could possibly be an issue, but the DVR is in a air conditioned Liebert cabinet which keeps the temperature at 68 degrees all the time. Has anyone else ran into this issue, or does anyone have any ideas on what else it might me? See my attachment for an example
