20180417_132528.jpg [1.93MB]
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Security cameras
The security camera lens is heated
47
hace 5 años
hace 5 años
Greetings to all the experts, I have a surveillance circuit which is formed by 2 security boxes of 700TBL and 0.35 Amp. Powered by a voltage source of 12v at 1 Amp. and both connected to a pc that has a Pci Geovision GV600 DVR. Today I noticed that these cameras get hot the focus gets pretty hot. I would like to know if it is normal or is a problem. Thank you
20180417_132528.jpg [1.93MB]
20180417_132528.jpg [1.93MB]
hace 5 años
Hello, the problem is the cmos chip, it is similar to the vga of the overheated laptops, if you do not know you can search on youtube how to make a reflow and see if the problem is solved otherwise the component would have to be replaced, which Sometimes it is not affordable, it is usually more feasible to change the cameras, but as long as they keep recording you there is no need. Regards
hace 5 años
hace 5 años
The voltage difference is very small, it should not represent any problem for a camera in good condition, the most likely is that the factory will come and maybe you can still make the warranty valid, as I sometimes tell you a repair of these devices is more expensive than replacing them with a new one, you can look for one of better quality.
47
hace 5 años
You are right, the camera was new but I bought it a while ago and had it saved and no guarantee has to hurt. Maybe they are of poor quality. Well, since here in Venezuela, survival is the most act, I think I will have to try to repair it. If I take a picture inside, would you tell me which Chip is responsible?
hace 5 años
Ok, it is not visible in the image but it is usually located under the lens since it is responsible for capturing the image since it is sensitive to light, you can discard it if it is any of the integrated ones that come around the one that is overheats although it is not common, but you lose nothing
47
hace 5 años
Ok I'll try to see which one gets hotter. Now tell me, since I see that you know enough! Do these devices generally get hot even a little? as well as without giving video I connected it to a PC source that throws me a little lower voltage on this almost 12,14 and notice that it heats up less quickly
hace 5 años
If they get hot but not too much, the cmos sensor is powered with energy to perform its functions, when not connecting the video the sensor does not perform its full function therefore it does not get so hot, here what you have left would be to test each of the integrated, if they are generic maybe you can find the datasheet on the internet to evaluate its performance, the bad thing is that most Chinese cameras do not provide any information to the manufacturers.
9.854
hace 5 años
hace 5 años
Good.
The power supply is not the problem, because they usually give up to more than 13 volts. The problem is the cameras, which are not very good.
The Geovision board is fine, but the 700TVL cameras are very old cameras, and if one stopped working the other one, it will stop working shortly. Buy ones that are a bit of better quality and with more lines, about 1000TVL.
Greetings.
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