KR970009437A - Self-diagnosis device and method for electronic products - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-diagnosis apparatus and method for an electronic product. In the conventional circuit, the voltage detection unit occupies a large area in design because the number of lines must be connected in order to detect the DC driving voltage of each unit of the system. In addition, there is a problem in that accurate self-diagnosis cannot be performed when a defect occurs in another component. The purpose of the present invention is to solve this conventional problem by outputting a check signal to each part of the system corresponding to the address N and receiving a response signal from the respective parts and compares it with the standard signal if the "good" signal to the memory unit In this case, the method of storing the "bad" signal in the memory unit until the last address and displaying all the data stored in the memory unit on the screen is displayed. If the electronic product cannot display on the screen, the voice signal corresponding to the name of each part corresponding to the checked address is output after the comparison result, and if the comparison result is different after a predetermined time delay, the "bad" voice signal is the same. In this case, a method of outputting a "good" voice signal is used. In this way, the present invention can determine the abnormality of each part of the system by software using the already used ice square bus, which can reduce the area at design time, reduce the cost, There is an effect that can be checked in bad condition.

Description

Self-diagnosis device and method for electronic products

Since this is an open matter, no full text was included.

2 is a block diagram of a self-diagnosis apparatus of an electronic product of the present invention, FIG. 3 is a data arrangement diagram of a memory unit in the present invention, and FIG. 4 is a signal diagram of an ice square bus in the present invention.

Claims (3)

The first step of outputting a check signal to each part of the system corresponding to address N and receiving a response signal from each part and comparing it with a standard signal; if the comparison result is the same, stores a "good" signal to the memory part and if " A second step of storing a "bad" signal in the memory unit, a third step of storing the comparison result in the memory unit and confirming whether the checked address is the last address; If the same, the self-diagnosis method of the electronic product comprising a fourth step of displaying on the screen all the data stored in the memory on the screen. The first step of outputting a check signal to each part of the system corresponding to N address and receiving a response signal from each part and comparing it with the standard signal; if the comparison result is the same or different, it corresponds to the name of each part corresponding to the address. A second step of outputting a voice signal, a third step of having a predetermined time delay after the output of the voice signal, and a "bad" voice signal if the difference is different from the comparison step after the delay time. A fourth step of outputting a "good" voice signal and a fifth step of checking whether the checked address is the last address after outputting the audio signal as in the fourth step, or checking the N + 1 address and stopping the operation if it is the same Self-diagnosis method of an electronic product, characterized in that made. By outputting the check signal through the ice square bus to the memory part that stores the address and standard signal data of each part of the system, and the system corresponding to the address signal of the memory part, the response signal is received and compared with the standard signal And a microcomputer for storing the result of the determination in the memory unit and converting the result into a color signal and outputting the result to the screen. ※ Note: The disclosure is based on the initial application.