KR890009195A - TV / VRT power off circuit - Google Patents

TV / VRT power off circuit Download PDF

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Publication number
KR890009195A
KR890009195A KR870013229A KR870013229A KR890009195A KR 890009195 A KR890009195 A KR 890009195A KR 870013229 A KR870013229 A KR 870013229A KR 870013229 A KR870013229 A KR 870013229A KR 890009195 A KR890009195 A KR 890009195A
Authority
KR
South Korea
Prior art keywords
signal
power
terminal
circuit
microcomputer
Prior art date
Application number
KR870013229A
Other languages
Korean (ko)
Inventor
박병찬
Original Assignee
최근선
주식회사 금성사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 최근선, 주식회사 금성사 filed Critical 최근선
Priority to KR870013229A priority Critical patent/KR890009195A/en
Publication of KR890009195A publication Critical patent/KR890009195A/en

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  • Television Receiver Circuits (AREA)

Abstract

내용 없음No content

Description

TV/VTR의 전원 자동 오프회로TV / VTR Power Off Circuit

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명에 따른 TV/VTR의 전원 자동 오프회로도.1 is a power supply automatic off circuit diagram of a TV / VTR according to the present invention.

Claims (1)

방송 신호가 인가되는 튜너 신호 입력단(Vin)이 동기 검출회로(1)를 거쳐 마이콤(2)에 접속되어 방송 신호의 유.무를 검출하는 TV의 전원 제어 회로에 있어서, 마이콤(2)은 전원 프래그를 체크하여 1일 경우에는 전원 온 단자로 로우(L)신호를 출력시키며, 0일 경우에는 전원 프래그를 1로 세트시켜 전원 온 단자로 하여 (H)신호를 출력시키고, EE모드일 경우에는 EE단자로 하여(H)신호를 출력시키며 동기신호가 검출 될시에는 마이콤(2)자체에 카운터 시간 데이타를 세트시키고, 동기 신호가 검출되지 않으면 설성 시간동안 카운트 하여 홀드단(HoLD)으로 하이(H)신호를 출력시켜 EE단자와 홀드단(HoLD)의 하이(H)신호가 엔드게이트(IC1)를 거쳐 파우어 스위치(SW1)와 병렬로 연결된 트랜지스터(Q1)를 구동시켜 방송 종료시 전원을 자동 오프시키도록 한 것을 특징으로하는 TV/VTR의 전원 자동 오프회로.In a power supply control circuit of a TV in which a tuner signal input terminal (Vin) to which a broadcast signal is applied is connected to the microcomputer (2) via a synchronous detection circuit (1) to detect the presence or absence of a broadcast signal, the microcomputer (2) If the lag is checked, if it is 1, it outputs a low (L) signal to the power-on terminal. If it is 0, it sets the power flag to 1 and outputs the (H) signal to the power-on terminal. The EE terminal outputs the (H) signal, and when the synchronization signal is detected, the counter time data is set in the microcomputer (2) itself. If the synchronization signal is not detected, the counter time data is counted during the setting time and the signal is held high (HoLD). When the broadcasting ends by outputting the (H) signal, the high (H) signal of the EE terminal and the hold terminal (HoLD) drives the transistor (Q 1 ) connected in parallel with the power switch (SW 1 ) through the end gate (IC 1 ). Characterized in that the power is turned off automatically The TV / VTR Auto Power Off circuit. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR870013229A 1987-11-24 1987-11-24 TV / VRT power off circuit KR890009195A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR870013229A KR890009195A (en) 1987-11-24 1987-11-24 TV / VRT power off circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR870013229A KR890009195A (en) 1987-11-24 1987-11-24 TV / VRT power off circuit

Publications (1)

Publication Number Publication Date
KR890009195A true KR890009195A (en) 1989-07-15

Family

ID=68459790

Family Applications (1)

Application Number Title Priority Date Filing Date
KR870013229A KR890009195A (en) 1987-11-24 1987-11-24 TV / VRT power off circuit

Country Status (1)

Country Link
KR (1) KR890009195A (en)

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