Yamaha Lifting, Yamaha, was established in 1887 and has a long history.Yamaha has a solid position in the world market through a global sales company.More than a hundred years ago, a young entrepreneur named Shan Ye Yinnan started to make high -quality reed wind pianos and created Yamaha.
How about Yamahagong putting the machine
Some of the amplifiers of the Yamaha brand are designed for home entertainment theaters, and some are used in industries with higher requirements for audio output for professional conferences and stage.Regardless of which Yamaha robbby uses, as an electronic product, it is necessary to play it without the voltage stability, and stay away from the high temperature and humid environment to avoid direct contact with water and high temperature, and it must be done at hand.Closing the power supply of the device can not only achieve the service life of the device, but also effectively reduce the radiation of the human body.
Yamaha Lifting Machine Manual
In the manual, some important operation precautions: 1. In order not to damage the speaker and high power tube, do not connect the speaker system before the test machine, between the push -pull output terminal and the groundBetween) connect a 20-50Ω/20 ～ 50W wire around the resistance for fake load.Secondly, disconnect any two electrodes of the last high -power tube or not to install the high -power tube Q212 ~ Q219 in advance.Reserve the pipeline Q210 and Q211 for complementary push -pull outputs (if there is no transmission pole resistance between the tube launch pole and the middle point, two resistance to two 100-270Ω and 0.5W or more should be installed temporarily, and the test machine is removed).Then connect a compressor at the power amplifier power supply 220V input terminal, power the power amplifier from 50V, and monitor the midpoint voltage of the output end (the voltage between point C and D and D).
Yamahagong release machine repair
(1) Draw some of the electronic schematic diagrams of the entire power amplifier, and clarify the working principle and component parameters of the circuit.(2) All components in the circuit are measured by the circuit with a resistance measurement method, and the measurement results of the left and right circuits are compared to find out the damaged components.In order to improve the accuracy of measurement on the road, use a digital multimeter when measured the resistance.Due to the large internal resistance of the digital multimeter and the small current provided by the measured circuit, the diode and triode PN are not guided, which is equivalent to opening the path, which can reduce the impact on the resistance measurement.
The price of Yamaha Port
The quotation of the Yamaha power amplifier is generally around 2,000 yuan. The Yamaha power amplifier uses the OSD screen display function, which adds BI-AMP technology in terms of sound quality, and further adds analog video to HDMI (1080P) in terms of picture quality.Yamaha Lifting will bring you excellent enjoyment and audiovisual experience in terms of sound quality and screen.

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