CN2272173Y

CN2272173Y - TV set with individually working loud speaker

Info

Publication number: CN2272173Y
Application number: CN96240765U
Authority: CN
Inventors: 孙建锋
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-09-28
Filing date: 1996-09-28
Publication date: 1998-01-07
Anticipated expiration: 2006-09-28

Abstract

The utility model relates to a television receiver. On the basis of structure of the existing televisions, a linked switch K is in series connected in the middle of a power input wire among built-in power supply F, a high frequency head A, a frequency division network B, an intermediate frequency amplifying and discriminating circuit C, and a video decoding and imaging system E. When the linked switch K is turned off, audio signals input through an audio input terminal N are amplified and broadcast by a power amplifier and a loudspeaker D inside the television. That is to say the loudspeaker system of the television can work alone, so the utility model satisfies the requirement for video disc players to play laser turntables.

Description

The television set that loudspeaker can work independently

The utility model relates to a kind of television receiver.

Along with the continuous progress of society, the VCD VCD player progressively enters resident family, becomes a kind of new apparatus for entertainment.Some present new-type VCD players can not only be play videodisc, and play CD compact disc separately.If when playing compact disc, also will all work with the joining television set of VCD player, promptly its video system and loudspeaker all are in normal operating conditions.And this moment, the video system in the television receiver was to flog a dead horse, and had both wasted electric energy, had shortened video system useful life of picture tube particularly again.If for listen a CD disc record bring a cover acoustics again and VCD player supporting, then dislike loaded down with trivial details again, and not like this, the then bad again embodiment of the function of the independent play CD disc record of VCD player.

The purpose of this utility model just provides a kind of and above-mentioned this VCD player television set supporting, that its loudspeaker can work independently, to demonstrate fully the function of VCD player, can prolong the useful life of television set again.

The utility model is achieved in that in the television receiver with Voice ﹠ Video input terminal row is provided with a switch again, and this switch can be with the power connection or the shutoff of each several part in the video system from the tuner to the picture tube in the television receiver.When VCD player play CD disc record, connect the television receiver power supply and disconnect this and newly put switch, then only power amplifier in television set and loud speaker power supply of power supply, audio signal, is broadcasted by loud speaker after power amplifier amplifies by the input of audio input end.This moment, video system and other parts of television set just stopped work, had avoided unnecessary waste.

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 is an electrical block diagram of the present utility model, and wherein the various piece in the television receiver is represented by block diagram.

As shown in the figure, various piece all remains unchanged in this television set, only be internal power supply F and tuner A, dividing network B, in put and frequency-discriminating circuit C, video decode and imaging system E between power input line in the middle of be connected in series a linked switch K.At ordinary times, the K switch closure, television set keeps original function; When needs loudspeaker D works independently, open K switch, cut off the power supply of each several part except that loudspeaker D, these parts are quit work.Loudspeaker will be amplified from the audio signal of the sub-N input of the audio input end that joins with it, be broadcasted by tv speaker again.Among the figure with tuner A join for the sub-M of tv signal input.

The utility model is by setting up mains switch in television set, the loudspeaker of television set can be worked independently, the needs of VCD VCD player play CD compact disc have not only been satisfied, but also make television set can refute stereo sets such as receiving sound head, deck, walkman and CD player, use as sound equipment, thereby improved the utilance of television set.

Claims

1, a kind of loudspeaker television set that can work independently, it is characterized in that this television set be internal power supply (F) and tuner (A), dividing network (B), in put and frequency-discriminating circuit (C), video decode and imaging system (E) between power input line in the middle of be connected in series a linked switch (K).