WARRANTY AND REPAIRMENT:
Our products are offered for one-year warranty.Any defective products under guarantee will be repaired without any charge.
Technology Manager: David Li
1. No Picture after providing power
. May be the power supply voltage abnormity, please check the power supply voltage and pole whether exactitude.
. Please check all the connecting cable and monitors whether be connected correctly or not.
2. The picture level direction have flowing interference ripples
. May be caused by the power supply AC ripples, it need filter the wave of the power supply.
. Check the monitor and peripheral equipments used.
3. The picture background color changes continuously
. The fluorescent lamp’s electromagnetic field cause color roll. This is proper phenomenon of the cameras.
. Reduce the fluorescent lamp numbers or increase the distance between the camera and the fluorescent lamps can improve it.
. Use power supply external sync. camera can solve it.
4. The picture smear too mass
. The power supply’s voltage unstable.
. Connecting cables not connect correctly or have high impedance.
5. What is low lux?
The minimum light requirements for recording are measured in lux. A decent standard color CCD camera might be .5 to .1 lux. A decent B&W CCD camera might be about .01 A low lux camera would be more like .003 to .0001 The smaller the number, the better ability to see in the dark. But still do not assume if somewhere is pitch black you can still see well with a low lux camera.
6. What does lux mean?
Lux is the measure of light the camera needs to reproduce an image. The lower the Lux number, the less light the camera requires. A black & white camera will grasp an image longer than a color camera. For instance, a camera with a LUX rating of .0003 will see MUCH better in the dark than a camera with a .03 LUX rating. When we specify low lux, typically the lux is .0003.
7. What is two-dimensional & three-dimensional DNR technology?
A noise reduction device includes a two-dimensional noise reducing unit for reducing noise by arithmetic processing within an image, a three-dimensional noise reducing unit for receiving the video signal from the two-dimensional noise reducing unit and reducing noise by arithmetic processing between images, a first noise reduction intensity setting unit for setting noise reduction intensity of the two-dimensional noise reducing unit, and a second noise reduction intensity setting unit for setting noise reduction intensity of the three-dimensional noise reducing unit. The second noise reduction intensity setting unit sets the noise reduction intensity of the three-dimensional noise reducing unit, so that the noise reduction intensity of the three-dimensional noise reducing unit becomes lower as the noise reduction intensity of the two-dimensional noise reducing unit becomes higher
8. Why the monitor/TV is displaying only with black and white?
Please make sure that the DVR color format and the monitor/TV color format are the same. Please also check if the monitor/TV can support the color format (PAL/NTSC) from the DVR
9. Why the DVR is not working after connected to power supply?
Please make sure the power switch at the back-side of the DVR is ON. Why does the DVR respond very slowly after boot up?
1. The DVR system will check all the data on the hard-disk. This will slow the DVR loading speed
2. Hard-Disk errors will cause the system to check the hard-disk slowly.