KR880000852A - Self test circuit of computer monitor - Google Patents

Self test circuit of computer monitor Download PDF

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Publication number
KR880000852A
KR880000852A KR1019860005056A KR860005056A KR880000852A KR 880000852 A KR880000852 A KR 880000852A KR 1019860005056 A KR1019860005056 A KR 1019860005056A KR 860005056 A KR860005056 A KR 860005056A KR 880000852 A KR880000852 A KR 880000852A
Authority
KR
South Korea
Prior art keywords
transistor
test circuit
computer monitor
self test
outputted
Prior art date
Application number
KR1019860005056A
Other languages
Korean (ko)
Other versions
KR890003484B1 (en
Inventor
조희철
Original Assignee
대우전자 주식회사
김용원
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 대우전자 주식회사, 김용원 filed Critical 대우전자 주식회사
Priority to KR1019860005056A priority Critical patent/KR890003484B1/en
Publication of KR880000852A publication Critical patent/KR880000852A/en
Application granted granted Critical
Publication of KR890003484B1 publication Critical patent/KR890003484B1/en

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/153—Digital output to display device ; Cooperation and interconnection of the display device with other functional units using cathode-ray tubes

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

내용 없음No content

Description

컴퓨터 모니터의 자체 성능검사 회로Self test circuit of computer monitor

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

도면은 본 발명의 회로도.Figure is a circuit diagram of the present invention.

Claims (1)

동상의 컴퓨터 본체(1)의 접지단자(A)에 트랜지스터(Q1)의 베이스를 접속하고 그 사이에 콜렉터로 부터 연결된 저항(R1) (R2)및 콘덴서를 연결하여 컴퓨터와의 연결 유무를 확인하여 단자(2)에 입력된 수평동기 신호가 트랜지스터(Q2)와 콘덴서(C2) 및 저항(R4)(R5)에 의해 온 오프되는 스위칭 회로를 연결하고 단자(3)에 입력된 수평 플라이백펄스가 트랜지스터(Q3)(Q4)와 저항 (R11)-(T15)및 콘덴서에 의해 미분되어 콜렉터에 출력되는 정 수평 플라이백 펄스가 오어게이트 구성에 의한 다이오드 (D1)(D2)(D3)에 의해 출력되어져 트랜지스터 (Q5)(Q6)에 입력됨으로서 다이오드 (D4)(D5)(D6)에 나타난 신호 중 어느 한 신호만을 선택하여 모느크롬 모니터에 적용한 것을 특징으로 하는 컴퓨터 모니터의 자체 성능 검사 회로.Connect the base of transistor Q 1 to ground terminal A of in-phase computer main body 1, connect resistor R 1 (R 2 ) and capacitor connected from collector between them Connected to the switching circuit in which the horizontal synchronizing signal inputted to the terminal 2 is turned on and off by the transistor Q 2 and the capacitor C 2 and the resistor R 4 and R 5 , and The horizontal flyback pulse inputted by transistor Q 3 ), Q 4 ), resistors R 11- (T 15 ) and condenser is outputted to the collector, and the horizontal flyback pulse D 1 ) (D 2 ) (D 3 ) is outputted and input to transistor (Q 5 ) (Q 6 ) to select only one of the signals shown in diode (D 4 ) (D 5 ) (D 6 ) Self-monitoring circuit for computer monitors, which is applied to all chrome monitors. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019860005056A 1986-06-24 1986-06-24 Efficiency test circuits for oneself of computer monitor KR890003484B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019860005056A KR890003484B1 (en) 1986-06-24 1986-06-24 Efficiency test circuits for oneself of computer monitor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019860005056A KR890003484B1 (en) 1986-06-24 1986-06-24 Efficiency test circuits for oneself of computer monitor

Publications (2)

Publication Number Publication Date
KR880000852A true KR880000852A (en) 1988-03-30
KR890003484B1 KR890003484B1 (en) 1989-09-22

Family

ID=19250685

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019860005056A KR890003484B1 (en) 1986-06-24 1986-06-24 Efficiency test circuits for oneself of computer monitor

Country Status (1)

Country Link
KR (1) KR890003484B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100690581B1 (en) 2005-06-29 2007-03-09 삼성전자주식회사 Display apparatus

Also Published As

Publication number Publication date
KR890003484B1 (en) 1989-09-22

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