JPS5813778U - Television receiver input signal switching device - Google Patents
Television receiver input signal switching deviceInfo
- Publication number
- JPS5813778U JPS5813778U JP10791581U JP10791581U JPS5813778U JP S5813778 U JPS5813778 U JP S5813778U JP 10791581 U JP10791581 U JP 10791581U JP 10791581 U JP10791581 U JP 10791581U JP S5813778 U JPS5813778 U JP S5813778U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- switch
- signal switching
- switching device
- input signal
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
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
第1図はRF信号切換回路、第2図は制御電圧発生回路
、第3図は第2図の他の実施回路図である。
■A・・・・・・アンテナ入力端子、I、−・・・・・
VTR入力端子、OT・・・・・−TV出力端子、SS
□・・・・・・第1スイツチ、S82・・・・・・第2
スイツチ、T□・・・・・・第1スイツチングトランジ
スタ、T2・・・・・・第2スイツチングトランジスタ
。FIG. 1 is an RF signal switching circuit, FIG. 2 is a control voltage generation circuit, and FIG. 3 is another implementation circuit diagram of FIG. 2. ■A...Antenna input terminal, I...
VTR input terminal, OT...-TV output terminal, SS
□・・・・First switch, S82・・・・Second
Switch, T□...first switching transistor, T2...second switching transistor.
Claims (1)
信号とVTR等の第2RF信号源の出力である第2RF
信号を切換えてTV受像機のアンテナ入力端子に供給す
るRF信号切換回路と、前記第2RF信号源の電源のオ
ン、オフに連動して2接点に切換わる第1スイツチと、
前記第1、第2RF信号の切換を選択する第2スイレチ
及び第1、第2スイツチ素子で形成され前記第1、第2
スイツチの出力によって制御され前記RF信号切換回路
制御用の直流制御電圧を発生する回路を備え、前記第1
スイツチの電源オフ位置に於いて前記直流制御電圧発生
回路は上記第2スイツチの切換位置とは無関係に上記R
F切換回路を制御して、上記TV受像機のアンテナ入力
端子に第1RF信号を供給すべ(構成したTV受像機の
入力信号切換装置。a first RF which is the output of a first RF signal source such as an antenna input;
a second RF signal, which is the output of a second RF signal source such as a VTR;
an RF signal switching circuit that switches a signal and supplies it to an antenna input terminal of a TV receiver; a first switch that switches to two contacts in conjunction with turning on and off the power of the second RF signal source;
a second switch for selecting switching between the first and second RF signals, and a first and second switch element;
a circuit that is controlled by the output of the switch and generates a DC control voltage for controlling the RF signal switching circuit;
In the power OFF position of the switch, the DC control voltage generating circuit
An input signal switching device for a TV receiver configured to control an F switching circuit to supply a first RF signal to an antenna input terminal of the TV receiver.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10791581U JPS5813778U (en) | 1981-07-20 | 1981-07-20 | Television receiver input signal switching device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10791581U JPS5813778U (en) | 1981-07-20 | 1981-07-20 | Television receiver input signal switching device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5813778U true JPS5813778U (en) | 1983-01-28 |
Family
ID=29902340
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10791581U Pending JPS5813778U (en) | 1981-07-20 | 1981-07-20 | Television receiver input signal switching device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5813778U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61147115U (en) * | 1985-03-05 | 1986-09-10 |
-
1981
- 1981-07-20 JP JP10791581U patent/JPS5813778U/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61147115U (en) * | 1985-03-05 | 1986-09-10 |
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