The 1 power of incorrect trigger equipment fault. Power supply incorrect roughly following several possible: power lines or power supply voltage is not correct, the power is not enough ( or a road supply line size is not too large, Buck ), power system transmission line short circuit, circuit breaker, such as transient overvoltage. Especially for power supply error or overvoltage transient cause equipment damage situation has occurred. Therefore, the system debugging, power supply, must be strictly check and inspection, should never let down.
2 because of some devices ( such as with three variable lens cctv camera and tripod ). There are many, if processing is bad, especially with equipment connected line processing is not good, there will be open circuit, short circuit, wire insulation, wiring error bad caused equipment damage, the problem of performance degradation. In this case, should according to the fault phenomenon calmly analysis, judgement in a plurality of lines is due to which connection a problem before generating the fault phenomenon. This would bring the narrowing of the scope of the problem. It should be pointed out particularly that, the video camera with a tripod head due to a full range of movement, for a long time, cause connection off, break is common. Therefore, special attention should be paid to the situation of equipment and various cable connections shall be in accordance with the requirements of long time running.
The 3 device or component itself quality problems. Theoretically, all kinds of equipment and parts have quality problems. But from the experience, is the quality of the product itself, occur in the decoder, the electric platform, transmission parts and other equipment. It is worth pointing out, some of the equipment from the overall sense of quality may not appear the problem can not be used, but in some technical indicators are not up to the specification given index. So it is necessary to choose the products necessary to sample detection. When does a product quality problem, the best way is to replace the product, and should not be to mend. In addition, the most common equipment due to improper adjustment problems. For example, a camera intercept adjustment is a very detailed and accurate, if not careful adjustment, there will be no good or focus in three variable lens various operations that occur when the defocus problem. In addition, the camera switches and the adjustment knob is positioned correctly, meets the system technical requirements, the decoder coding switch or other adjustable position setting is correct or not will directly affect the normal use of the device itself or affect the whole system's normal performance.