JPS5976178U

JPS5976178U - monitor tv receiver

Info

Publication number: JPS5976178U
Application number: JP17300682U
Authority: JP
Inventors: 外山　建夫
Original assignee: 三洋電機株式会社
Priority date: 1982-11-15
Filing date: 1982-11-15
Publication date: 1984-05-23

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来のモニタテレビ受像機の主要部の概略構成
を示すブロック図、第２図は第１図の要部の回路図、第
３図は本考案のモニタテレビ受像機の主要部品概略構成
を示すブロック図、第４図は第３図の要部の回路図であ
る。１・・・テレビ信号受信回路、２・・・補助増幅回路、
３・・・映像信号処理回路、４・・・輝度信号増幅回路
、５・・・色信号再生回路、６・・・マトリクス回路、
７・・・直流分再生回路、８・・・ドライブ回路、９・
・・受像管、１０・・・増幅回路、１１・・・検出回路
、１２・・・制御回路、Ａ・・・アンテナ入力端子、Ｂ
・・・ビデオ入力端子、Ｃ・・・切換スイッチ、Ｄ・・
・原色信号入力端子、Ｅ・・・クランプパルス入力端子
、Ｆ・・・入力端子、Ｑ□・・・ドライブ用トランジス
タ、Ｑ２・・・スイッチング用トランジスタ、Ｑ３・・
・ビデオ信号増幅用トランジスタ、Ｑ４・・・スイッチ
ング用トランジスタ、Ｑ５・・・制御用トランジスタ。Fig. 1 is a block diagram showing the schematic configuration of the main parts of a conventional monitor television receiver, Fig. 2 is a circuit diagram of the main parts of Fig. 1, and Fig. 3 is a schematic diagram of the main parts of the monitor TV receiver of the present invention. A block diagram showing the configuration, FIG. 4 is a circuit diagram of the main part of FIG. 3. 1... TV signal receiving circuit, 2... Auxiliary amplifier circuit,
3... Video signal processing circuit, 4... Luminance signal amplification circuit, 5... Color signal reproducing circuit, 6... Matrix circuit,
7... DC component regeneration circuit, 8... Drive circuit, 9...
... Picture tube, 10 ... Amplification circuit, 11 ... Detection circuit, 12 ... Control circuit, A ... Antenna input terminal, B
...Video input terminal, C...Selector switch, D...
・Primary color signal input terminal, E...clamp pulse input terminal, F...input terminal, Q□...drive transistor, Q2...switching transistor, Q3...
-Video signal amplification transistor, Q4...switching transistor, Q5...control transistor.

Claims

[Scope of utility model registration request]

(1) In a monitor television receiver in which an external video signal is input to a video signal processing circuit, there is a detection circuit that detects an unattended state of the video signal processing circuit, and a detection circuit that responds to the output of this detection circuit. A monitor television receiver comprising: a control circuit for controlling a drive circuit of a picture tube; the drive circuit causes the picture tube to emit light in a predetermined color when the video signal is unattended.

(2) The monitor television receiver according to claim 1, wherein the control circuit obtains the output of the detection circuit and lowers the cathode potential to which the primary color signals of the picture tube are applied. .