Shenzhen kind words high professional LCD monitor manufacturer www.m-yg.com The 
 Warranty service is limited to the valid warranty period under normal use, due to the failure of product quality problems caused by artificial damage will enjoy the following Warranty Services in accordance with state regulations. 
 (1) Where the company produced products can enjoy 1 year free warranty service; 
 (2) the date of the purchaser received the goods within January quality failure occurs, the appearance of the product intact, accessories and packaging materials, complete the company can be responsible for free replacement; injury and accessories and packaging materials are not complete the company will only give such as the appearance of the product free repair; does not provide a replacement; 
 (3) the lifetime cost of maintenance, to provide technical support for life. 
 4, more specific circumstances to inquire. 

 Shenzhen kind words high professional LCD monitor manufacturer www.m-yg.com The 
 Warranty service is limited to the valid warranty period under normal use, due to the failure of product quality problems caused by artificial damage will enjoy the following Warranty Services in accordance with state regulations. 
 (1) Where the company produced products can enjoy 1 year free warranty service; 
 (2) the date of the purchaser received the goods within January quality failure occurs, the appearance of the product intact, accessories and packaging materials, complete the company can be responsible for free replacement; injury and accessories and packaging materials are not complete the company will only give such as the appearance of the product free repair; does not provide a replacement; 
 (3) the lifetime cost of maintenance, to provide technical support for life. 
 4, more specific circumstances to inquire. 
 1, monitor the industry standard professional monitors the input signal amplitude 1Vp-P ± 3dB (approximately 0.7Vp-p-1.4Vp-p), input impedance of 75 ohms. Therefore, if the input signal due to cable attenuation, impedance matching or transmission cable, BNC production is not standardized, causes of the input signal amplitude is much lower than 0.7pp; or due to the camera's output is not standardized or access certain non-standard access device (such as splitter, amplifier, etc.) causes the input signal amplitude is much larger than 1.4Vp-p, are likely to cause image distortion, horizontal and vertical synchronization. 
 2, the video frequency range is wide, the video signal during transmission are more susceptible to interference (including the 50Hz power supply noise, electromagnetic interference, etc.), thus affecting the image quality. Serious interference may cause image distortion, deformation, raceways, horizontal and vertical synchronization. Monitoring system installation process, the video cable must be away from the EMI source. 
 Potential between the front-end equipment, control the host device and terminal equipment, the potential difference can also interfere with the video signal, caused by the distortion of the image signal or image raceway, if you live access of the entire system (ie, front-end equipment, master equipment and terminal equipment in the equipment before and after the end of the electrified access BNC connections), may be due to the equipment before and after the end of the ground (in fact, is the transmission cable shield) between potential difference caused by surface-to-surface jump fire, this will destroy the prefecture-level input components or the PCB casserole dressing line flashover serious. Caused by the input open, the input image failure. Building monitoring system should be strictly according to the standard design and construction. The grounding bus shall be copper wire of sufficient cross-sectional area, to ensure that front-end surface-to-surface resistance <1Ω, the ground wire may not form a closed loop, not be combined with a strong grid of the zero line short or mixed access. 
 Long life, stable operation, no burns, injury, and low maintenance costs.