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Sauk Valley Sat
04-01-2008, 07:04 PM
We had a customer call us yesterday telling us 3 out of 4 of his cameras went down at the same time. Small lumber yard, not really "security" cameras as much as just monitors so they can see what is happening out in the yard. The 3 cameras were all outside, the one that is still working is inside. We had a thunderstorm the night before so we figured they got a surge. When we checked them out the power supplies were all good, nothing else was damaged in the buildings, etc. The cameras just didn't work. Is it possible that the light from a nearby strike when they were in infrared mode would of messed them up? We can't come up with any other explanation. The cameras are mounted on three separate buildings, the power supplies are near each camera with the video feeds going through coax back to the dvr. It is definitely the cameras, we replaced them and everything works fine.

04-01-2008, 07:19 PM
The MOS sensors in cameras CAN be overloaded by too much light, but I always thought that they would recover after some time.

First question that comes to mind is whether you're getting video sync from the unit (black picture) or whether it's no signal at all.

Sauk Valley Sat
04-02-2008, 07:17 AM
No signal at all. The three that were down all had a blue screen with a signal loss error message on them. We tried rewinding to see if we could tell if there was an event but because they just use them as monitors they didn't have it set to record. I was hoping to get some cool footage of a lightning strike!

We'll try hooking up one of the cameras in the shop today and see if we can get anything out of it.

Sauk Valley Sat
04-03-2008, 06:40 AM
It turns out that the recorder was on after all, I just didn't look in the right place. About 3:30 in the morning the storm started, The cameras went snowy a couple of times from lighting strikes but came back after a few seconds. Then there must of been a close one, they all went out at once and never came back. We tried one at the store, the power indicator lights up but the cameras dead.

04-03-2008, 08:54 AM
Sounds like an induced current fried something inside the camera.

Sauk Valley Sat
04-03-2008, 07:07 PM
I don't know that much about whats in them but that sounds good to me!