KR100240067B1 - Audio in and out test apparatus for a television receiver - Google Patents

Abstract

Disclosed is an audio input / output test apparatus for automatically checking audio input / output in a production line of a television receiver.

The present invention as described above, the frequency generating device for generating frequencies of different bands; A first frequency control device for selecting the different frequency bands as left and right channels; Connected to and connected to an audio input / output terminal of a television receiver to output different frequency bands of the first frequency control device to the left and right speakers of the receiver and to supply a signal of the audio output terminal of the receiver to the outside. Mobile connection device; A sound detection device for detecting left and right speaker sounds of the receiver; An effective frequency extraction device for distinguishing the detected sound and noise and outputting only an effective frequency; A second frequency control device which selects the audio output signal of the receiver obtained in the mobile access device as left and right channels; And a control device that determines whether the frequency is normally output and the magnitude of the effective frequency obtained by the effective frequency extractor and the second frequency control device by comparing the audio output signal with a predetermined frequency value.

Accordingly, by automatically checking whether the audio input / output of the receiver is normal in the television production line, there is an advantage of improving productivity and labor and reducing the defective rate of the product.

Description

Audio input / output tester of television receiver

The present invention relates to an audio input / output test in the production line of home appliances, in particular, a product that emphasizes the audio signal, more specifically, before shipping a product such as a television receiver or an audio device that can receive and watch a broadcast signal The present invention relates to an audio input / output test apparatus for a television receiver, which automatically checks whether a product operates normally, so as to make a workman's work and minimizing an inspection defect rate possible.

In general, a television receiver or an audio device is a product capable of monitoring various audio signals by hearing. In order to output audio signals correctly, a product such as a television receiver must undergo some necessary inspection and adjustment in a production line.

In general, the inspection and adjustment of the audio signal input / output of a television receiver on the production line of the product is done consistently at every point in time necessary for the television receiver to be transported on a pallet in the conveyor belt.

As is well known, the audio input of a television receiver, which is one of several inspection items involved in the final inspection of whether the product is performed normally on the production line, such as whether the product operates normally before shipping the television receiver. In the output test, the operator selectively provides audio signals of different frequency bands to the television receiver to check whether the audio signals of the corresponding frequency bands are normally output through the speaker, and also to check the audio signal output of the television receiver. Visual inspection with an oscilloscope

An apparatus for inspecting audio input / output in such a general product production line includes an apparatus as shown in FIG. 1.

The apparatus shown in Fig. 1 is described as an example of an audio input / output inspection apparatus of a conventional television receiver.

The audio input / output device includes first and second frequency generators 100 and 101 which selectively generate frequencies of 400 Hz and 1 KHz respectively by an operator's switch operation, and a printed circuit board of the television receiver 103. Removably coupled to the audio input / output terminal 103a coupled to the assembly 103c to supply the frequencies generated by the first and second frequency generators 100 and 101 to the television receiver 103. The audio input / output fixing jig 102 and the audio input / output fixing jig 102 are electrically connected to display the audio signal from the audio input / output terminal 103a of the television receiver 103. In the figure, reference numeral 103b denotes a cathode ray tube.

The process for audio input / output inspection through the audio input / output test apparatus of such a television receiver will be described with reference to FIG. 1 as follows.

First, a set of television receivers is assembled by an operator at the previous stage and transported through a conveyor belt to a work position where an audio input / output inspection apparatus is installed. The output fixing jig 102 is fitted to the audio input / output terminal 103a which is mounted on the printed board assembly 103c of the television receiver 103.

Subsequently, a frequency of 400 Hz and a frequency of 1 KHz are generated by operating a switch of the first frequency generator 100 and a switch of the second frequency generator 101.

The frequency of 400 Hz generated by the first frequency generator 100 and the frequency of 1 KHz generated by the second frequency generator 101 are determined by the audio input / output fixing jig 102 and the printed circuit board assembly 103c coupled thereto. It is supplied to the television receiver 103 via the audio input / output terminal 103a.

The supplied 400Hz frequency and 1KHz frequency are output or cut off to the right and left speakers of the television receiver 103, not shown in the drawing, depending on whether the set is normal or defective.

That is, the frequency of 400 Hz is output to the right speaker of the television receiver 103 and the frequency of 1 KHz is output to the left speaker of the television receiver 103.

Therefore, the operator audibly confirms whether a sound corresponding to each frequency is generated from the right speaker and the left speaker of the television receiver 103, and also the oscilloscope 104 connected to the audio input / output fixing jig 102. Through visual confirmation of the audio input / output terminal 103a, that is, whether the audio signal from the audio output terminal is normally output.

Thereafter, by operating the switch of the first frequency generator 100, 1 KHz, and operating the switch of the second frequency generator 101 to generate a frequency of 400 Hz. 4) Check whether the sound corresponding to the frequencies of 1KHz and 400Hz is generated from the right speaker and the left speaker, respectively, and audio input / output terminal 103a of the television receiver 103 through the oscilloscope 104, that is, audio output. After visually confirming whether the audio signal is normally output from the terminal, good and bad parts are finally discriminated.

However, in the above-described audio input / output inspection apparatus of a conventional television receiver, the operator provides audio signals of different frequency bands to the television receiver to confirm whether or not the audio signals of the corresponding frequency bands are normally output through hearing. In addition, the oscilloscope visually checks whether the audio signal is normally output.

Therefore, it has been a source of noise in the production line, and it is not only unpleasant for the operator to continuously listen to simple noise to check the input / output of the audio signal, but also sounds generated by the speaker of the television receiver to the worker's hearing. By relying on it, the defective rate is high, resulting in poor product quality.

In addition, when the input condition of the audio signal and the new product come to the working position, the operator has to continuously set the switch and the audio input / output fixing jig. As a result, the labor is increased and productivity is lowered. There is a problem in that multiple frequency generators are used.

Accordingly, the present invention excludes an increase in the number of labors generated at the time of audio input / output inspection of a television receiver and an increase in defective rate due to hearing dependence. Immediately before shipment, the TV receiver's audio system automatically reduces the manual labor and minimizes product defects by automatically checking whether the audio input / output signal of the television is normal. Its purpose is to provide an input / output inspection device.

In another aspect of the present invention, the object of the present invention is to achieve adultization by automating the noise generating process.

In still another aspect of the present invention, an object of the present invention is to eliminate expensive frequency generators and to achieve low cost of the device.

It is still another aspect of the present invention to enable management of audio input / output measurements of a television as data.

1 is a schematic diagram showing an audio input / output test apparatus of a conventional television receiver,

FIG. 2 is a configuration diagram showing an embodiment provided for describing an audio input / output test apparatus for a television receiver according to the present invention; FIG.

FIG. 2A is a block diagram showing a frequency generator for supplying an audio signal to an audio input / output terminal of a television receiver and a first frequency control device for selecting the same;

2B is a block diagram showing a mobile connection device automatically coupled to an audio input / output terminal of a television receiver;

FIG. 2C is a circuit diagram of detecting sound and audio output signals generated from left and right speakers of a television receiver to determine whether they are normally output.

<Description of the code | symbol about the principal part of drawing>

200: first frequency generator 201: second frequency generator

202: first frequency control unit 205: mobile connection unit

206: television receiver 207: sound detection unit

208: effective frequency extraction unit 209: control device

According to an aspect of the present invention, an audio input / output test apparatus for a television receiver includes: a frequency generator generating different frequency bands; A first frequency control device for selecting and outputting the different frequency bands obtained by the frequency generator as left and right channels; When the audio input / output signal is inspected, the audio input / output terminal of the television receiver is connected and connected to transmit and supply the different frequency bands obtained from the first frequency control device to output to the left and right speakers. A mobile connection device for transmitting and supplying an audio signal obtained from an audio output terminal of the apparatus to an outside; A sound detection device for detecting sound generated from the left and right speakers of the television receiver; An effective frequency extraction device for distinguishing the detected speaker sound and the noise of a production line and outputting only an effective frequency; A second frequency control device which selects and outputs an audio output signal of the television receiver obtained by the mobile access device in left and right channels; And comparing the effective frequency obtained by the effective frequency extracting device and the audio output signal obtained by the second frequency regulating device with a preset frequency value to determine whether the frequency is normally output and the magnitude of the frequency of the mobile access device. 1, the second frequency control device, a sound detection device and a control device for controlling the effective frequency extraction device.

In the audio input / output inspection apparatus of a television receiver according to the present invention, the mobile connection apparatus includes a cylinder and a moving rod linearly moving by pneumatic in accordance with a control signal of the control device; And a pressing member fixed to a distal end of the moving rod and fixed to several terminals accommodated in the terminal hole of the audio input / output terminal by driving the cylinder.

Preferably, it is characterized in that for generating a frequency of 400Hz and 1KHz from the frequency generator, respectively.

In the audio input / output inspection apparatus of a television receiver according to the present invention, the first frequency control device alternately selects the frequency of 400 Hz and the frequency of 1 KHz to the left and right channels under the control of the controller. It is desirable to give.

In the audio input / output inspection apparatus of a television receiver according to the present invention, the sound detection apparatus comprises: left and right microphones for detecting sound generated from left and right speakers of the television receiver as an electrical signal; And a first selection member for selecting the frequencies detected by the left and right microphones according to the control of the control device.

An audio input / output test apparatus for a television receiver according to the present invention, wherein the effective frequency extracting apparatus includes: a filter and amplifying means for amplifying and outputting noise included in a frequency obtained by the sound detecting apparatus; A second selecting member which selects the frequency obtained by the amplifying means into left and right channels; And first and second filter means for filtering the audio frequencies of the left and right channels selected by the second selection member to the control device, respectively.

Preferably, the first and second filter means are characterized by passing only the frequency band of 400Hz and 1KHz.

In this way, different frequency bands generated by the frequency generator through the mobile access device are automatically supplied to the audio input / output terminals of the television receiver to be output to the left and right speakers, and the output of the left and right speakers is output. By extracting only the effective frequency through the sound detection device and the effective frequency extraction device and providing it to the control device, it can be seen that the control device determines whether the frequency is normally output and the sound volume is properly output by comparing with the set frequency value. .

As a result, by automatically inspecting the audio input / output signal in the production line of the television receiver, the productivity and labor time is reduced, and the defect of the product is reduced, eventually, the quality of the product is stabilized.

In addition, there may be a plurality of embodiments of the present invention. Hereinafter, the most preferred embodiments will be described in detail.

This preferred embodiment enables a better understanding of the objects, features and advantages of the present invention.

Hereinafter, exemplary embodiments of an audio input / output test apparatus for a television receiver according to the present invention will be described in detail with reference to the accompanying drawings.

In addition, the technique of the present invention can be applied to the inspection of audio input / output signals of various products capable of hearing audio signals such as color television receivers or audio devices.

Thus, FIGS. 2A to 2C used in the description are not an audio input / output test apparatus of a specific product, but a drawing focusing on various products capable of hearing audio signals.

In addition, the following description considers the example using the television receiver which is an object of the input / output test of an audio signal.

Figure 2 is a block diagram showing an embodiment provided in the description of the audio input / output test apparatus of the television receiver according to the present invention, Figure 2a is a frequency generator for supplying an audio signal to the audio input / output port of the television receiver And a first frequency control device for selecting the same, and FIG. 2B is a block diagram showing a mobile connection device automatically coupled to an audio input / output port of a television receiver, and FIG. This is a circuit diagram for detecting normal sound output by detecting generated sound and audio output signal.

According to the present embodiment, the first and second frequency generators 200 and 201 for generating a frequency of 400 Hz and a frequency of 1 KHz, respectively, during the audio input / output signal test, and the first and second frequencies A first frequency interrupter 202 for alternately selecting and outputting different frequency bands generated by the generators 200 and 201 to the left and right channel output terminals 203 and 204, and the audio; When the input / output signal is checked, the first frequency interrupter 202 and the left and right sides are connected to and connected to the audio input / output terminal 206a mounted on the printed circuit board assembly 206c of the television receiver 206. It transmits and supplies the different frequency bands input through the channel output terminals 203 and 204 to output to the left and right speakers (not shown), and the audio input / output terminals of the television receiver 206 ( A mobile connection unit 205 for transmitting and supplying the audio signal output from the 206a to the outside, and the tele Sound frequency detection unit 207 for detecting the sound generated from the left and right speakers of the front receiver 206 and the output sound of the left and right speakers detected by the sound detection unit 207 and the noise of the production line effective frequency The effective frequency extractor 208 for outputting only a band and the first, second left and right audio input terminals 212, 214, and 211 and 213 are connected to the mobile connection unit 205. A second frequency interrupter 210 which selects and outputs an audio signal output from the audio input / output terminal 206a of 206 to the left and right channels, and is extracted and input by the effective frequency extractor 208 Determining whether there is a normal output of the frequency to the left and right speakers and the magnitude of the frequency by comparing the effective frequency and the audio output signal input from the second frequency control unit 210 with the preset frequency value of the user. Driving of the mobile connection unit 205 and the first and second frequency interruption The control unit 209 is provided with an analog / digital converter 209a for controlling the frequency selection of the unit 202, the sound detector 207, and the effective frequency extractor 208.

The first frequency control unit 202, the frequency of 400Hz generated by the first frequency generator 200 is switched by the control of the control device 209, the left and right channel output terminal 203, (204) ) And the first and second switches (S1), (S2) and 1KHz frequency generated by the second frequency generator 201 is switched by the control of the control device 209 to the left and right channels The third and fourth switches S3 and S4 supplied to the output terminals 203 and 204 are configured.

The movable connecting portion 205 is fixed to the distal end of the cylinder 205a and the moving rod 205b and the moving rod 205b which are linearly moved by pneumatic pressure input under the control of the control device 209. A driving member 205c includes a plurality of audio terminals fixed in the terminal hole of the audio input / output terminal 206a by driving the cylinder 205a.

The sound detector 207 detects and outputs left and right microphone frequencies generated by the left and right speakers of the television receiver 206 and the left and right microphones 207a and 207b, and the left and right microphones. A first selection member 207c for selecting and outputting the frequencies of the left and right channels detected by the microphones 207a and 207b under the control of the control device 209.

The effective frequency extractor 208 removes the noise included in the frequencies of the left and right channels selected by the sound detector 207, and amplifies and outputs a sufficient magnitude of the noise. A second selection member 208b comprising fifth and sixth switches S5 and S6 for selecting the left and right channel frequencies amplified by 208a according to the control of the controller 209, and the second selection; First and second filtering the frequencies of the left and right channels supplied from the fifth and sixth switches S5 and S6 of the member 208b into frequency bands of 400 Hz and 1 KHz, and provide them to the controller 209. It consists of two filter parts 208c and 208d.

The second frequency control unit 210 is a television receiver 206 input from the first left and right channel input terminals 212 and 211 and the second left and right channel input terminals 214 and 213. And the third and fourth selection members 210a and 201b for selecting the left and right channel output audio signals under the control of the control device 209 and are controlled under the control of the control device 209. Fifth selection member comprising seventh and eighth switches S7 and S8 for selecting and supplying output audio signals of left and right channels input from the third and fourth selection members 210a and 210b. In the figure, reference numeral 206b in the drawing indicates a color water tube.

The audio input / output test apparatus of the television receiver according to the present invention thus constructed performs the following operation for the inspection and discrimination of the audio input / output signal.

Hereinafter, with reference to FIG. 2, it demonstrates more concretely.

When a set of television receivers 206 are assembled by an operator in the work line of the previous stage and transferred to a work position where an audio input / output inspection apparatus is installed through a conveyor belt, a position sensing device (not shown) is detected. The control device 209 will be described in detail later.

When the control device 209 detects that the television receiver 206 is correctly placed in the correct position to be inspected, the controller 209 drives the cylinder 205a of the mobile connection unit 205 of FIG. 2B to connect the audio terminal of the pressing member 205c to the television receiver. To the audio input / output terminal 206a attached to the printed board assembly 206c of 206.

Here, the forward action of the cylinder 205a of the movable connecting portion 205 is such that the flow path is formed in two directions, and the air pressure generated by the compressor is operated by a flow path opening and closing means such as a solenoid valve (not shown) for supplying and discharging air pressure. This can be done by supplying and by reversing the pneumatic pressure in reverse.

The solenoid valve is then controlled by the controller 209.

Subsequently, if the audio terminal of the pressing member 205b is correctly connected to the audio input / output terminal 206a through the cylinder 205a of the mobile connection unit 205, the presence / absence sensor (not shown in the drawing) senses the control device ( 209).

Accordingly, the control device 209 first conducts (ON) the first switch S1 of the first frequency control unit 202 of FIG. 2A to check the audio input / output and generates the first frequency generator 200. A frequency of 1 KHz generated at the second frequency generator 201 by outputting a frequency of 400 Hz to the right channel output terminal 204 and conducting the fourth switch S4 of the first frequency interrupter 202. Is output to the left channel output terminal 203.

The frequencies of 1 KHz and 400 Hz output from the left and right channel output terminals 203 and 204 are connected to the television receiver 206 through the audio terminals stored in the pressing member 205c of the mobile connection unit 205 of FIG. 2B. By supplying to the audio input / output terminal 206a attached to the printed circuit board assembly 206c, a sound corresponding to 400 Hz is output from the right speaker of the television receiver 206 and a sound corresponding to 1 KHz from the left speaker.

In this case, a plurality of audio input and output channels may be provided according to the television receiver 206, and correspondingly, a plurality of audio input / output terminals stored in the pressing member 205c of the mobile connection unit 205 may be provided. do.

Subsequently, after the above operation is completed, the control device 209 conducts the fifth switch S5 of the second selection member 208b constituted by the effective frequency extraction unit 208 of FIG. 2C, and the sound detection unit 207 The movable terminal c of the first selection member 207c, which is constituted by (), is connected to its fixed terminal (a).

Accordingly, the right microphone 207a of the sound detector 207 detects a sound for a frequency of 400 Hz generated from the right speaker of the television receiver 206 and extracts the effective frequency extractor 208 through the first selection member 207c. To the filter and amplifier 208a.

Here, as the sound input to the right microphone 207a, a frequency of 400 Hz generated by the right speaker of the television receiver 206, noise of the work line, and the like are input.

Therefore, the filter and amplifying unit 208a filters and removes the noise included in the frequency of 400 Hz, and amplifies the noise to a sufficient size so as to extract the effective frequency through the fifth switch S5 of the second selecting member 208b. 208 to the first filter portion 208c.

The first filter unit 208c filters the frequency input through the fifth switch S5 and provides a valid frequency, that is, a frequency of 400 Hz, to the analog / digital converter 209a of the control device 209.

The analog / digital converter 209a digitalizes the input frequency of 400 Hz and stores it in memory.

Therefore, the controller 209 checks whether the data value for 400 Hz stored in the memory matches with a user-specified value, that is, whether the frequency of 400 Hz is output from the right speaker of the television receiver 206 and whether the sound volume is correctly output. To judge and visually inform the operator.

Thereafter, the control device 209 turns off the fifth switch S5 of the second selection member 208b, turns on the sixth switch S6, and moves the movable terminal c of the first selection member 207c. ) Is connected to its fixed terminal (b) to detect sound corresponding to 1 KHz generated from the left speaker of the television receiver 206 through the left microphone 207b in the same manner as described above.

The detected frequency of 1 kHz is set through the sixth switch S6 of the second selection member 208b to a sufficient magnitude after the noise is removed from the filter and the amplification unit 208a through the first selection member 207c. It is provided to the 2 filter part 208d.

The second filter unit 208d filters the input frequency and provides an effective frequency, that is, a frequency of 1 KHz, to the analog / digital converter 209a of the control device 209.

The analog / digital converter 209a changes the input frequency of 1KHz into a numerical value and stores it in the memory.

Therefore, the controller 209 checks whether the numerical value for the 1 KHz stored in the memory matches with the value predetermined by the user, that is, whether the frequency of 1 KHz is output from the left speaker of the television receiver 206 and whether the sound volume is correctly output. To judge and visually inform the operator.

Thereafter, the control device 209 cuts the sixth switch S6 of the first selection member 207c and the second selection member 208b, and the fifth selection member 210c configured in the second frequency control unit 210. The seventh switch S7 is connected and the movable terminal c of the third selection member 210a is connected to its fixed terminal a.

Accordingly, the audio signal output from the first right audio output terminal 206a of the television receiver 206 is electrically connected to the pressing member 205c of the mobile connection unit 205 and the first right channel input terminal 211 of FIG. 2C. ), Through the seventh switch S7 of the third selection member 210a and the fifth selection member 210c, is input to the analog / digital converter 209a of the control device 209, whereby the control device 209 As described above, the operator visually informs the operator by determining whether it matches the predetermined value, that is, whether the normal frequency is output from the first right audio output terminal of the television receiver 206 and whether the loudness is properly output. do.

Thereafter, the control device 209 connects the movable terminal c of the third selection member 210a to its fixed terminal b side.

Accordingly, the audio signal output from the first left audio output terminal of the television receiver 206 is formed by the first left channel input terminal 212, the third selection member 210a, and the fifth selection member 210c of FIG. 2C. By inputting to the analog / digital converting section 209a through the seven switches S7, the control unit 209 outputs a normal frequency from the first left audio output terminal of the television receiver 206 by the method described above. Judges whether the sound and sound level are output properly and informs the worker visually.

Thereafter, the control device 209 cuts off the seventh switch S7 and the third selection member 210a of the fifth selection member 210c and turns on the eighth switch S8 of the fifth selection member 210c. In addition, the movable terminal c of the fourth selection member 210b is connected to its fixed terminal a.

When the connection is made, the audio signal output to the second right audio output terminal of the television receiver 206 is connected to the second right channel input terminal 213, the fourth selection member 210b, and the fifth selection member 210c. Input to the analog-to-digital converter 209a through the eighth switch S8 causes the controller 209 to output a normal frequency from the second right audio output terminal of the television receiver 206 in the manner described above. Judges whether the sound and sound level are output properly and informs the worker visually.

Further, in the above state, the second terminal of the television receiver 206 inputted from the second left channel input terminal 214 by connecting the movable terminal c of the fourth selection member 210b to its fixed terminal b. It determines whether the frequency output from the left audio output terminal is normally output and whether the sound volume is properly output.

Thereafter, all the switches are shut off and the second and third switches S2 and S3 of the first frequency interrupter 202 of FIG. 2A are turned on, and the respective switches are sequentially turned on in the same manner as described above. The frequency generated from the right speaker and the left speaker of the receiver 206 is detected. In this case, the frequencies supplied to the right speaker and the left speaker are different from each other.

In this way, if the audio input / output test results of the television receiver 206 are all good products, it is determined that the television receiver is a normal television receiver.

Here, although the frequencies generated by the first and second frequency generators 200 and 201 are fixed at 400 Hz and 1 KHz, this is determined by determining that they are the most useful frequencies and have no special meaning.

That is, it does not matter which frequency is within the range of 20Hz-20KHz which is an audible frequency range.

On the other hand, as a comparative example, unlike the prior art, in other words, the operator has to manipulate different frequencies and provide them to the television receiver by hand and check whether the frequencies are normally output through the speaker. It can be seen that the invention can automatically supply different frequencies to the television receiver and also automatically check whether the audio input / output signal is normal.

As a result, according to the present invention, it is possible to increase the efficiency of the audio input / output inspection of the television receiver in the production line while not only bringing the productivity improvement equivalent to that of the conventional one, but also minimizing the defective rate and the labor required by the automatic inspection. have.

As described above, in the present embodiment, by using a mobile connection unit such as a cylinder, different frequencies are supplied to the television receiver, and each switch is automatically controlled to perform audio input / output inspection, thereby reducing time delay according to the conventional manual operation. In other words, the error of the audio input / output check does not occur.

According to this application example, no labor is increased during the audio input / output inspection of the television receiver, and the inspection time is significantly reduced, thereby improving productivity and stabilizing product quality.

In addition, while specific embodiments of the present invention have been described and illustrated above, it is obvious that the present invention may be variously modified and implemented by those skilled in the art.

Such modified embodiments should not be individually understood from the technical spirit or the prospect of the present invention, and such modified embodiments should fall within the appended claims of the present invention.

It is clear from the above description that, according to the audio input / output test apparatus of the television receiver of the present invention, it is possible to automatically supply different frequencies generated by the frequency generator device to the television receiver via the mobile connection device and to provide audio input / output. By automatically checking whether the output signal is normal through the control device, the working time is shortened during the audio input / output inspection, which improves productivity, and also minimizes the labor rate and product defect rate by the automatic inspection. It is effective to manage the measured value of as data.

Claims (10)

A frequency generator for generating frequencies of different bands; A first frequency control device for selecting the different frequency bands as left and right channels; Connected to and connected to the audio input / output terminal of the television receiver to output different frequency bands of the first frequency control device to the left and right speakers of the receiver, and transmits the signal of the audio output terminal of the receiver to the outside. A mobile connection device; A sound detection device for detecting sound generated from the left and right speakers of the receiver; An effective frequency extraction device for distinguishing the detected speaker sound and noise and outputting only an effective frequency; A second frequency control device which selects and outputs an audio output signal of the television receiver obtained by the mobile access device in left and right channels; And The presence and magnitude of the normal output of the frequency is determined by comparing the effective frequency obtained from the effective frequency extracting device and the second frequency control device with a predetermined frequency value. An audio input / output test apparatus for a television receiver comprising a control device for controlling a frequency interrupter, a sound detection device, and an effective frequency extraction device. The method of claim 1, The first frequency intermittent apparatus includes first to fourth switches for alternately selecting the different frequency bands in left and right channels and providing them to the mobile access apparatus. Inspection device. The method of claim 1, The mobile connection device includes a cylinder and a moving rod linearly moving by pneumatic pressure in accordance with the control device; And a pressurizing member fixed to a distal end of the moving rod and fixed to several terminals accommodated in the terminal hole of the audio input / output terminal by driving of the cylinder. The method of claim 1, The frequency generator is an audio input / output test device for a television receiver, characterized in that for generating an audible frequency band frequency. The method of claim 1, The sound detection device may include left and right microphones for detecting sound generated from the left and right speakers of the receiver; And And a first selection member for selecting the frequencies detected by the left and right microphones according to the control of the control apparatus. The method of claim 1, The effective frequency extracting apparatus includes: a filter and amplifying means for amplifying and outputting noise included in a frequency obtained by the sound detecting apparatus; A second selecting member which selects the frequency obtained by the amplifying means into left and right channels; And And first and second filter means for filtering the audio frequencies of the left and right channels selected by the second selection member to provide only an effective frequency to the control device. 7. An audio input / output test apparatus for a television receiver according to claim 1 or 6, wherein the effective frequency is a frequency band of 400 Hz and 1 KHz. The method of claim 1, And said control device comprises analog / digital converting means for converting said effective frequency obtained from said effective frequency extractor into a numerical value to compare with said predetermined frequency value. A frequency generator for generating frequencies of different bands; A frequency control device for alternately selecting and outputting the different frequency bands to the left and right channels; It is connected to and connected to an audio input / output terminal of a television receiver to output the different frequency bands obtained from the frequency control device to the left and right speakers of the receiver, and to output an audio signal obtained from the audio output terminal of the receiver to the outside. A mobile connection device for transmitting and supplying; A sound detection device for detecting sound generated from the left and right speakers of the receiver; An effective frequency extraction device for distinguishing the detected left and right speaker sound and noise and outputting only an effective frequency; By comparing the effective frequency obtained from the effective frequency extractor with a predetermined frequency value, it is determined whether the frequency is normally output or not, and controls the mobile access device, the frequency interrupter, the sound detection device, and the effective frequency extractor. An audio input / output inspection device for a television receiver comprising a control device. The method of claim 9, The mobile connection device includes a cylinder and a moving rod linearly moving by pneumatic pressure in accordance with the control device; And a pressurizing member fixed to a distal end of the moving rod and fixed to several terminals accommodated in the terminal hole of the audio input / output terminal by driving of the cylinder.

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