High speed motor-car set vehicle television function debugging method

A technology for high-speed EMUs and debugging methods, applied in electrical components, instruments, selective content distribution, etc., can solve problems such as inability to realize audio and video debugging, and achieve the effect of improving debugging efficiency, reducing debugging time, and accurate debugging results

Inactive Publication Date: 2015-12-23
CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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AI Technical Summary

Problems solved by technology

[0002] In the past, the vehicle TV function debugging method is to use a general image generator (analog signal) to debug the vehicle TV. Through the analog image, only the vehicle TV can be lit, and the color display of the vehicle TV can be debugged, but the audio and video functions cannot be realized. Effect debugging

Method used

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  • High speed motor-car set vehicle television function debugging method

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Embodiment Construction

[0014] refer to figure 1 , the specific implementation steps of the debugging method:

[0015] (1) Connect the "video" interface of the DVD player to the CVBSAIN of the audio encoder, connect the "right channel" interface to the XLRR of the audio and video encoder, and connect the AC220V power supply voltage of the DVD player;

[0016] (2) Connect the ASIOUT2 ​​of the audio encoder to the ASIIN of the digital modulator with a BNC cable;

[0017] (3) Connect the interface RFOUT of the digital modulator with the "service interface" of the vehicle's audio and video host using the RG59 coaxial cable that matches the coaxial cable used for the debugged model, and connect the DC110V voltage;

[0018] (4) Choose a DVD disc with audio and video programs, play it through the DVD player, and the vehicle TV can display the video program of the DVD disc, and the audio will be output through the speakers in the car.

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Abstract

The invention relates to a high speed motor-car set vehicle television function debugging method. The method comprises steps that, 1, CVBSA IN interfaces of a DVD player and an audio encoder are connected by utilizing coaxial cables; 2, an audio encoder ASI OUT2 interface is connected with an ASI IN interface of a digital modulator, a right channel interface of the audio encoder is connected with an XLR R interface of an audio and video encoder, and a power source of the DVD player is conducted; 3, an RF OUT interface of the digital modulator is connected with a service interface of a vehicle audio and video host, the power source is further conducted; and 4, any DVD disk having audio and video programs is selected and played through the DVD player, the video programs of the DVD disk can be displayed through a vehicle television, audios can be outputted through a loudspeaker in the vehicle, and thereby vehicle television audio and video function debugging is realized. The high speed motor-car set vehicle television function debugging method is advantaged in that, the debugging scheme is reasonable, the debugging result is accurate, debugging time is shortened, and debugging efficiency is improved.

Description

technical field [0001] The invention relates to a function debugging method of a vehicle-mounted television, in particular to a method for debugging the audio and video functions of a high-speed EMU vehicle TV. Background technique [0002] In the past, the vehicle TV function debugging method is to use a general image generator (analog signal) to debug the vehicle TV. Through the analog image, only the vehicle TV can be lit, and the color display of the vehicle TV can be adjusted correctly, but the audio and video functions cannot be realized. Effect debugging. Contents of the invention [0003] The purpose of the present invention is to provide a method for debugging the audio and video functions of the TV effect of the vehicle, which is beneficial to reduce the failure rate of the equipment and improve the debugging efficiency. [0004] In order to achieve the above object, the present invention provides a method for debugging the TV function of a high-speed EMU vehicl...

Claims

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Application Information

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IPC IPC(8): H04N21/414G11B31/00
CPCH04N21/41422G11B31/006
Inventor 齐志新杨佳丽
Owner CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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