Goods referred to as: audio line in Dongguan

Product Description: In general, high-quality audio cable quality compared to ordinary cable, the sound can be reflected in the communication process; noise does not produce good quality, which we can draw the sound quality of the decision. Audio line in Dongguan over by the quality has been demonstrated in front of the audience, Yutong recommend that you buy the product. Yutong Electronics (Huizhou) Co., Ltd. (hereinafter referred to as Yutong company) is a production of the power cord, audio cable, keyboard cable, mouse cable, AV cable, USB cable and other electrical terminals, inductor-based Hong Kong enterprises, rely on advanced equipment and cost management are two strategies, Yutong company to provide our clients a full wire manufacturing services and solutions.

(A) Dongguan audio cable - Audio cable, referred to as the audio cable, used to convey the sound of the line. And the convergence of audio cables from the local composition of the first two, one in the: audio cable for the dual-core barrier to ordinary cable, head through the common interface are called RCA audio cable (RCA), insert written (TRS JACKS), XLR audio cable (XLR .)

(B) the video cable connection techniques:

Television broadcast the video line is the main control room video systems constitute the local, direct impact on manufacturing quality black and white video channel the skills of the target, the poor quality of video signal lines are capable of forming anti-white flags, signal flags severe attenuation, equipment differences further, even infix signal flags. In the manufacturing process of the video line, beginning of, must choose the exact video cable and interface header. Select the beginning of the cable should be aware of its nominal impedance, has a characteristic impedance of 50Ω cable and video cable in appearance very close to, not a mixed-cut. Other, should be aware that there is no cable or attack the first convergence of oxidation state, head of the cable or the interface may deserve scrap for disposal depending on the situation, otherwise, will form the solder joints Weld oxide, lead to severe attenuation of signal flags, and even augmented . Individual market makers cut corners, produced the video cable does not fit specifications, such as: barrier layer sparse, non-standard diameter, etc., should also pay attention to the purchase. The choice of the convergence of the first fit as equipment needs, to prevent the use of adapters, cable specifications should correspond to the use of the specifications.

Another point is the need to guarantee the superior quality crimping or welding quality. Methods using crimp connectors, cable layers on the diameter and crimp process requirements are very stringent, making it the appearance of a more easy way, but the viewer is not aware, we can take a virtual, if often plug, solid nature of the lower should try to prevent the use of this type of connector species, forced to use, the best crimp, together with the solder bit, still plug, to prevent the cable force. In contrast, the welded joints on the process requirements on low, but still needs to pay attention to the specifications of connector and cable specifications consistent welding to beg to surrender popular electronic circuit board soldering requirements as to lubricate joints, flat, not Weld . Finally, there must reflect on whether open or short circuit condition. When doing a video line, no matter what connection, the length of how many, should be a reflection with a multimeter, make sure that no open or short circuit of the position, is completed.

(C) Dongguan audio cable connection

Audio cable video cable to the relatively complex, there is a balanced and unbalanced connection connection problems.

    1 balanced connection: connection is the so-called balanced signal line with two flags sends a signal flags on the equilibrium of the convergence approach, because the two lines by the disturb signal flags as big and small, phase contrast, and ultimately will disturb be offset. Limited because of the lower audio frequencies, in the long interval of transmission conditions, was easily disturb, therefore, a balanced connection resistance to disturb the interface as a way of professional audio equipment, by the convergence of the most common. Convergence lines in the household appliances are also valid for two-core cable audio interface barrier line, What, then, it is about the transmission channel, the two flags signal, not a balanced connection.

   2 unbalanced connection: connection is only one unbalanced signal lines to carry flags signal flags convergence approach, because the connection was easy to disturb, so only the general requirements in household appliances or some lower conditions apply.

  (1) a balanced connection: 1 foot access barriers, access terminal 2 feet, 3 feet to - end; (2) against balance Connection: 1 foot and 3 foot dovetail barrier, 2 feet to end. Choice of what regular connection interfaces based on the detailed requirements of the device may be able to use a balanced connection to try to use a balanced connection, be sure to see the convergence time on the panel stated that a good idea to read the instruction sheet on the use of the information that clarifies and requirements. Also encountered in some places one end of the device interface is balanced interface, the other side of the interface device is balanced against the conditions in the not very stringent requirements of the situation, simply use a balanced connection end balance, balanced against value received against the use of law, pay attention to the foot corresponds to it. The requirements of stringent conditions, it was necessary to use conversion circuit will balance against balance, or balance to balance against.

(D) audio line in Dongguan - coaxial audio analysis

Coaxial audio interface, audio-visual equipment in the back on Coaxial for identification, the first flags to supply digital audio signal transmission. Standard coaxial digital cable using BNC connector head, its impedance is 75Ω, 75Ω coaxial cable with common, can guarantee a constant impedance to ensure the accurate transmission signal flags. That is the wire with the transmission, it should be based on combined figures for the transmission of high frequency signals with 75-ohm coaxial cable as standard. It is divided into RCA and BNC connectors two. Digital coaxial interface with 75Ω impedance coaxial cable to transmit the preamble, its strengths are constant impedance, wide band transmission, high-quality coaxial cable bandwidth up to several hundred megahertz.