Monitoring installation after a long time there will be some failures, maintenance and repair needs! Faced with failure to monitor the monitoring service hotel, we have the following approach: one, line fault: If not handled properly, there will be open circuit and so on. Second, the power failure: supply voltage is not correct, so power is not enough monitoring equipment will be affected. Third, the quality of equipment problems: a variety of equipment and components of quality problems are likely to occur Zhengzhou monitoring service monitors school maintenance, repair and maintenance work together Zhengzhou source technology to create a full range of security surveillance, monitoring Zhengzhou monitoring maintenance repair and renovation industry leader, providing exclusive security customized, tailored to ensure that one. We welcome you! Focus shift problem: Because of the visible and infrared light of different wavelengths, the image focus is not on a plane, resulting in clearer images visible in daylight conditions, infrared light conditions at night blurred light conditions or at night infrared image is clear, visible light conditions during the day Under the image blur can be used in three ways to solve first, the use of auto-focus camera integration;.. Second, using a dedicated focus not shift lens; the third, a professional adjustment tool, under the existing conditions of the lens can be achieved not offset. RMON monitoring maintenance repair _ _ Kaifeng source maintenance provided by Zhengzhou source maintenance Electronic Technology Co., Zhengzhou source maintenance Electronic Technology Co., Ltd. (www.hnxywb.com) strong, credible, in Zhengzhou integrated monitoring systems and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead source maintenance and you work into the brilliant, for a better future!