KR20000034741A - Method for self-diagnosing for tv - Google Patents

Abstract

PURPOSE: A method for self diagnosing for TV is provided so that a user can easily know the diagnosing parts and the repairing time become reduced by displaying error massages relating to the diagnosed items in TV added a self-diagnosing program. CONSTITUTION: A method for self-diagnosing for TV includes several steps. A step is to display an item among a plurality of items capable of diagnosing to a displaying unit(24), if a self-diagnosing mode is selected(S103). When a self-diagnosing item is displayed, a step is to discriminate whether a key of YES or NO is input(S104). As the result of the above step, if the key of YES is input, another item which is not the same as the previously displayed item is displayed and then the above operation is repeated(S105), if the key of NO is input, error message relating the corresponding diagnosing item is displayed(S106).

Description

Self-diagnosis method of TV

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to televisions, and more particularly, to a self-diagnosis method of a TV in which a user can diagnose a state of a TV at any time by adding a self-diagnosis program to a TV system.

In general, TV broadcasting refers to TV and TV programs (audio and audio signals) transmitted from a TV station by receiving an antenna of the TV, and separating video signals, synchronization signals, and audio signals from the TV receiver, respectively, by using a speaker and a cathode ray tube (CRT). To reproduce the video and audio signals.

With the development of communication technology these days, various kinds of TV broadcasting are being made. When we see various kinds of TV broadcasting, satellite TV broadcasting that transmits and receives TV broadcasts through satellite, and broadcast programs transmitted by each cable broadcasting station through cable are transmitted and received. Can be classified into cable broadcasting and TV broadcasting of the airwave transmission method which is most widely used at present. However, even if the TV broadcasting method is different from each other, the TV receiver can be used in common. In addition, due to the development of electronic technology, the TV receiver can be easily adjusted by the consumer, that is, the TV receiver with various functions added to the taste of the consumer is widely used.

An audio / video signal processing apparatus of such a TV will be described with reference to FIG. 1.

FIG. 1 is a schematic block diagram of an audio / video signal processing apparatus of a general TV. Referring to FIG. 1, a configuration of a signal for a TV broadcast program transmitted from each TV station is provided by an antenna ANT. When the user selects one channel to be watched through the key input unit 16, the tuner 10 tunes to the selected channel, and the video signal and the audio signal for the broadcast program received through the tuned channel are demodulated. The intermediate frequency circuit section 11 to process, the audio processing section 12 for detecting only the audio signal of the video signal and the audio signal demodulated by the intermediate frequency circuit section 3, amplifying the detected audio signal and outputting the same through the speaker SP It is composed.

In addition, the composite video signal processor 13 for detecting and displaying a video signal demodulated and output by the intermediate frequency circuit unit 11, and R corresponding to the video signal processed by the composite video signal processor 13; R, G, B data processing unit 14 for outputting G, B data, R, G, B data corresponding to video signals output from R, G, B data processing unit 14, and on-screen (OSD: On Screen Display) R, G, B switching unit 15 is composed of R, G, B data synthesized by the provided on-screen blanking data and output to the CRT.

In addition, the tuner 10 receives a selection signal provided from the key input unit 16 and the key input unit 16 wirelessly or wired to provide a selection signal for selecting a function and a channel desired by the user. And a control unit 17 for providing on-screen blanking data to the R, G, and B switching units 15. The video signal processed by the composite video signal processor 13 includes OSD data.

The operation of the video and audio signal processing apparatus of the TV according to the prior art having the configuration as described above will be described.

First, when a viewer selects a channel using the numeric key or the channel up / down key of the remote controller and applies the channel to the controller 17, the controller 17 responds to the applied channel selection signal. Accordingly, the tuner 10 provides a tuning control signal for tuning to the selected channel so that the viewer tunes to the selected channel. Therefore, the broadcast video and audio signals received through the tuned channel are output to the intermediate frequency circuit unit 11.

The intermediate frequency circuit section 11 demodulates and detects the broadcast video and audio signal to separate the audio signal and the video signal, respectively, and then outputs the audio signal to the audio processor 12 and amplifies a predetermined level. The video signal is output through the composite video signal processor 13.

The composite video signal processor 13 processes the video signal output from the intermediate frequency circuit unit 11 to be displayed, and the processed video signal is input to the R, G, and B data processors 14 to correspond to the video signal. Generates G, B data and outputs to the R, G, B switching unit 15.

The R, G, and B switching unit 15 mixes R, G, and B data corresponding to the video signal with on-screen R, G, and B data according to the on-screen blanking signal provided by the controller 17 to the CRT. By outputting, the screen is reproduced to a screen which the viewer can watch.

If the user determines that the TV screen is not clear or abnormal while watching a TV broadcast program using such a TV system, the user generally uses the screen adjustment keys attached to the main body or the remote controller of the TV system. to be.

Despite this adjustment, if the desired screen is not played, the user requests A / S.

After requesting A / S, A / S personnel separates the TV set to diagnose and repair the abnormality of the TV system, and checks the abnormality of many mechanical and electronic components mounted therein. If a spot is found, it will be repaired.

However, after repairing the TV system, the after-sales service personnel have to check the mechanical parts and electronic parts by the check device to find out where an abnormality occurs. Therefore, a troublesome and complicated process is required during the repair. Another problem is that the repair time is also considerably longer.

In addition, it is not possible to check all of the parts (items) to be checked when the TV is repaired, and only the parts with abnormalities are checked. Therefore, there is a problem that another TV error may occur after a long time.

Accordingly, an object of the present invention is to provide a self-diagnosis program to a TV system, and to solve the problems according to the prior art. The present invention provides a self-diagnosis method of a TV that displays a series of OSDs so that a user can easily check items to be diagnosed.

1 is a block diagram showing an audio / video signal processing apparatus of a general TV.

2 is a schematic block diagram of an apparatus for implementing a self-diagnosis method of a TV according to the present invention.

3 is a flowchart illustrating an operation of a method for self-diagnosis of a TV according to the present invention.

♣ Explanation of symbols for main part of drawing ♣

20: key input unit 21: control unit

22: storage unit 23: OSD processing unit

24: display unit

The self-diagnostic method of the TV according to the present invention for achieving the above object is in the self-diagnostic method of the TV with a display, when the self-diagnosis mode is selected, it is possible to self-diagnose the TV screen and audio output state Displaying one of a plurality of items on the display unit in an OSD form; Determining whether the YES or NO key is input after the self-diagnosis item is displayed; As a result of the determination, when the YES key is input, another self-diagnosis item is displayed among the plurality of self-diagnosis items which are not the same as the displayed item, and the above operation is repeatedly performed. When the NO key is input, the corresponding self-diagnosis item is displayed. And displaying an error message for.

Hereinafter, a self-diagnosis method of a TV according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a block diagram illustrating a control block for implementing a self-diagnosis method of a TV according to the present invention. Referring to the configuration, the key input unit 20, the control unit 21, the storage unit 22, and the OSD processing unit 23 are shown. ) And the display unit 24.

The key input unit 20 provides a key input signal for switching from the TV viewing mode to the self-diagnosis mode and a key input signal for responding to the question of the self-diagnosis item displayed on the display unit 24.

The storage unit 22 stores the self-diagnostic program, and when the self-diagnostic key input signal is applied through the key input unit 20, the control unit 21 switches the TV viewing mode to the self-diagnostic mode, and the storage unit Data for performing the self-diagnosis program stored in 22, that is, self-diagnosis items are sequentially read and provided to the OSD processor 23.

The OSD processor 23 OSD-processes the self-diagnosis data provided from the controller 21 and displays it on the display unit 24.

The self-diagnostic method of the TV according to the present invention using such a configuration will be described step by step with reference to FIGS. 2 and 3.

3 is an operational flowchart of a method for self-diagnosis of a TV according to the present invention. First, if the user selects the self-diagnosis key of the key input unit 20 for self-diagnosis of the TV while the TV is turned on and the TV broadcast program is being played (S101), the controller 21 plays the TV. The mode is switched to self-diagnosis mode. At this time, when switching to the self-diagnosis mode, the display unit 24 cuts off the display of the received broadcast signal in the same manner as when switching from the TV mode to the VCR mode, and displays only a blue screen.

In addition, the self-diagnosis mode can be performed in the TV playback mode.

When the self-diagnosis mode is switched, one of a plurality of self-diagnosis items for which the user can directly diagnose the TV state is OSD-processed by the OSD processing unit 23 and displayed on the display unit 24 (S103).

When the self-diagnosis item is displayed on the display unit 24, the user responds to the item through the key input unit 20.

At this time, the control unit 21 determines whether the user's response input through the key input unit 20 is "YES" or "NO" (S104), and when the "NO" key is input, the display unit 24 is displayed. On the contrary, when the "YES" key is input, the next self-diagnosis item stored in the storage unit 22 is displayed on the display unit 24 by OSD processing. (S105).

When another self-diagnostic item is displayed on the display unit 24, the user responds to the item through the key input unit 20.

At this time, the control unit 21 determines whether the user's response input through the key input unit 20 is "YES" or "NO" (S107), and when the "NO" key is input to the display unit 24 On the contrary, when the "YES" key is input, the next self-diagnosis item stored in the storage unit 22 is displayed on the display unit 24 by OSD processing. (S105).

In this way, it is determined whether the diagnosis is completed with respect to the self-diagnosis item stored in the storage unit 22 (S108), and when the self-diagnosis is completed, the self-diagnosis mode is released.

Hereinafter, an example of the self-diagnosis method will be described in detail.

When the self-diagnosis mode is switched, the display unit 24 first displays the OSD screen "Does the R signal of the OSD come out?", And the user views the screen and the key input unit 20 displays "YES" or "NO." "I will select the key. That is, the user selects the YES key if the user sees the TV screen state and matches the content of the question. Otherwise, the user selects the NO key. At this time, if the NO key is selected, an error message for the item is displayed on the display unit 24. If the YES key is input, the OSD screen "Does the OSD screen display the G signal?" Is displayed.

Therefore, the user sees the screen state of the TV and selects the YES key if the TV screen state matches the self-diagnosis item, and selects the NO key if not. Here, when the NO key is input, an error message is displayed in the same manner as above.

In this way, all preset self-test items are checked. Here, examples of other self-diagnosis items other than the above-described self-diagnosis items include: "Is the screen brightness the maximum?", "Is the screen brightness the darkest?", "Is the contrast the minimum?", "The contrast is the maximum. ? "," Is the audio output only to the left or right speaker? "

As a result, the self-diagnosis method of the TV according to the present invention sequentially displays the self-diagnosis items in the OSD form, and the user presses the YES key when the displayed self-diagnosis items coincide with the screen state and the audio output state of the current TV. If not, select the NO key. At this time, when the NO key is selected, by displaying an error message for the corresponding item, it is easy to check where the abnormality occurred.

As described above, the self-diagnosis method of the TV according to the present invention sequentially displays the self-diagnosis items in the OSD form, and the user indicates that if the displayed self-diagnosis items and the screen state and audio output state of the current TV match, YES, Select the key, otherwise select the NO key. At this time, when the NO key is selected, by displaying an error message for the corresponding item, there is an advantage that the user can easily grasp the parts to be checked.

In addition, since the part to be checked can be easily grasped, the A / S time can be shortened when repairing a TV failure.

Claims (1)

In the self-diagnosis method of a TV having a display unit, If a self-diagnosis mode is selected, displaying one of a plurality of items capable of self-diagnosis of a TV screen and an audio output state in an OSD form on the display unit; If a self-diagnosis item is displayed, determining whether a YES or NO key is input; As a result of the determination, when the YES key is input, another self-diagnosis item is displayed among the plurality of self-diagnosis items which are not the same as the displayed item, and the above operation is repeatedly performed. When the NO key is input, the corresponding self-diagnosis item is displayed. Self-diagnosis method for a TV, characterized in that the step consisting of displaying an error message for.