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Video tracking conference system representative unit


Desktop Chairman, Representative Unit Series 8000 Series System capacity: depending on the host ≤ 250 Frequency response: 40Hz~16KHz (golden frequency response of human voice) Energy exchange method: capacitive type Microphone sensitivity: -46dB Signal to noise ratio: 70dB Dynamic range: 105dB Total harmonic distortion: < 0.25% Working power host: 220VAC50HZ ± 10% microphone: 18DC, -5% Working current Host: 0.4A Microphone: 50MA ± 5% Maximum power consumption host: 100W, microphone: 1W Control type: RS485 Headphone output: None Connection method: Hand held "T" type connection method Connector: large 8-core DIN Voting: None IC card: None Color: gray black Installation: Desktop

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Video tracking conference system representative unit


Desktop Chairman, Representative Unit Series 8000 Series System capacity: depending on the host ≤ 250 Frequency response: 40Hz~16KHz (golden frequency response of human voice) Energy exchange method: capacitive type Microphone sensitivity: -46dB Signal to noise ratio: 70dB Dynamic range: 105dB Total harmonic distortion: < 0.25% Working power host: 220VAC50HZ ± 10% microphone: 18DC, -5% Working current Host: 0.4A Microphone: 50MA ± 5% Maximum power consumption host: 100W, microphone: 1W Control type: RS485 Headphone output: None Connection method: Hand held "T" type connection method Connector: large 8-core DIN Voting: None IC card: None Color: gray black Installation: Desktop

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Video tracking conference system representative unit


Desktop Chairman, Representative Unit Series 8000 Series System capacity: depending on the host ≤ 250 Frequency response: 40Hz~16KHz (golden frequency response of human voice) Energy exchange method: capacitive type Microphone sensitivity: -46dB Signal to noise ratio: 70dB Dynamic range: 105dB Total harmonic distortion: < 0.25% Working power host: 220VAC50HZ ± 10% microphone: 18DC, -5% Working current Host: 0.4A Microphone: 50MA ± 5% Maximum power consumption host: 100W, microphone: 1W Control type: RS485 Headphone output: None Connection method: Hand held "T" type connection method Connector: large 8-core DIN Voting: None IC card: None Color: gray black

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Video tracking conference system representative unit


Desktop Chairman, Representative Unit Series 8000 Series System capacity: depending on the host ≤ 250 Frequency response: 40Hz~16KHz (golden frequency response of human voice) Energy exchange method: capacitive type Microphone sensitivity: -46dB Signal to noise ratio: 70dB Dynamic range: 105dB Total harmonic distortion: < 0.25% Working power host: 220VAC50HZ ± 10% microphone: 18DC, -5% Working current Host: 0.4A Microphone: 50MA ± 5% Maximum power consumption host: 100W, microphone: 1W Control type: RS485 Headphone output: None Connection method: Hand held "T" type connection method Connector: large 8-core DIN Voting: None IC card: None Color: gray black Installation: Desktop

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Analysis and troubleshooting of sound reinforcement system faults


(1) There is a phenomenon of virtual soldering in the connecting wires between the various equipment of the sound reinforcement system. When there is a music signal, the solder joint causes the sound signal to be intermittent. Solution: (2) It is necessary to thoroughly inspect the wiring of each channel equipment, and it is best to re weld each connection point; (3) If the welding points of each connection are thoroughly inspected and there is still a "clicking" phenomenon, it may be due to a broken wire in the connecting wire. Use a multimeter to check each wire and replace the cable with a broken wire inside.

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When the sound reinforcement system is muted, the communication sound is severe


1. The connection shielding wires of each channel equipment have poor contact or solder joints. Solution: Carefully check the shielding wires between each equipment and try to use welding as much as possible. 2. Equipment with a three pin power plug should be connected to a two wire input socket, and the live wire and neutral wire of this level should be reversed. Solution: The two wire input socket, neutral wire and live wire must be reversed. Generally, the left leg of a socket is a neutral wire, and the right leg is a live wire. The power plug board should be equipped with three pins, and the middle and upper pins should be grounded to ensure power safety. 3. Some audio devices use a two pin plug, but some devices must use a three pin plug, otherwise there may be AC induction when connecting between them. The solution to introducing AC sound is to invert the power plug of the audio device with the two pin plug.

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When the sound system and lighting system are operating simultaneously, the communication noise of the sound system is high


(1) The sound system and lighting system are powered independently; (2) The isolation transformer shall be used for the power supply of the audio system, and the power of the isolation transformer shall be greater than the power of the audio system;

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Guangzhou Lighting and Audio Exhibition


Passing Brand Power to You with Heart - Tianyi Electronics

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Practitioner Reverse Walker


Due to the impact of the COVID-19 and the recent international chip crisis, the prices of raw materials have risen across the board, resulting in increased production costs for enterprises. Many enterprises have continuously issued notices of price increases. It is indeed such a difficult decision to choose, because of the affirmation and support of all partners, because we are independent property rights and independent production, in order to better give back to our supporters and users, Not only did I persist in serving as a practitioner of digital conference technology, but I also acted as a reverse player in this cost crisis. I have decided not to increase the prices of all products, but also to lower the prices of most products through policies, fully offering benefits and receiving feedback from multiple parties!

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Unite as one, fight against the epidemic, Wuhan, come on! Go China!


There is no output sound signal from the sound source, or there is a short circuit or open circuit in the output plug socket of the sound source equipment. Solution: Repair the sound source equipment or replace the sound source equipment. Carefully check the sound source in the wiring and plug socket to eliminate short circuits or open circuits. 2. There is an open circuit or short circuit in the connecting wires between various devices. Solution: Carefully check the connection status of the wiring, plugs, and sockets of each device, and eliminate false soldering, desoldering, and short circuiting. 3. If one or several power switches of the serial equipment are not connected, the sound signal will be interrupted. Solution: Turn on the power of the audio equipment. 4. Solution to the misplacement of the sound source button in the input channel of the mixer: Place the sound source switch button correctly.

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