JPH0221981U - - Google Patents
Info
- Publication number
- JPH0221981U JPH0221981U JP1988100195U JP10019588U JPH0221981U JP H0221981 U JPH0221981 U JP H0221981U JP 1988100195 U JP1988100195 U JP 1988100195U JP 10019588 U JP10019588 U JP 10019588U JP H0221981 U JPH0221981 U JP H0221981U
- Authority
- JP
- Japan
- Prior art keywords
- input signal
- video
- audio
- 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
- 230000005236 sound signal Effects 0.000 claims description 5
- 230000003321 amplification Effects 0.000 claims 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は、本考案の実施例を示すＡＶ増幅器の
入力信号切換回路図、第２図は従来例を示す同回
路図である。
図中、１……ＡＶ信号切換器、２……操作部、
Ｄ……デコーダ、Ｅ……Ｂ電源端子、Ｖ１，Ｖ２
，Ｖ３，Ｖ４……映像信号入力端子、Ｌ１，Ｌ２
，Ｌ３，Ｌ４……左音声信号入力端子、Ｒ１，Ｒ
２，Ｒ３，Ｒ４……右音声信号入力端子、Ｓ１，
Ｓ２，Ｓ３……選択回路、Ｓ４，Ｓ５，Ｓ６，Ｓ
７……四連切換スイツチ、Ｖｏｕｔ……映像信号
出力端子、Ｌｏｕｔ……左音声信号出力端子、Ｒ
ｏｕｔ……右音声信号出力端子、Ａ１，Ａ２，Ａ
３……第１増幅器、Ａ１ａ，Ａ２ａ，Ａ３ａ……
第２増幅器。
FIG. 1 is an input signal switching circuit diagram of an AV amplifier showing an embodiment of the present invention, and FIG. 2 is a circuit diagram showing a conventional example. In the figure, 1...AV signal switcher, 2...operation unit,
D...Decoder, E...B power supply terminal, V1, V2
, V3, V4...Video signal input terminal, L1, L2
, L3, L4...Left audio signal input terminal, R1, R
2, R3, R4...Right audio signal input terminal, S1,
S2, S3...selection circuit, S4, S5, S6, S
7...Quadruple changeover switch, Vout...Video signal output terminal, Lout...Left audio signal output terminal, R
out...Right audio signal output terminal, A1, A2, A
3...First amplifier, A1a, A2a, A3a...
Second amplifier.
Claims (1)
を選択的に切り換え、同入力信号を各々第１の増
幅器を介して各々の音声増幅回路および映像処理
回路に入力せしめ、映像および音声を再生するも
のにおいて、前記第１の各増幅器と音声増幅回路
および映像処理回路との間にスイツチを各々設け
、同スイツチにより前記第１の入力信号と別に設
けた映像および左右の音声の信号入力端子よりの
第２の入力信号とを切り換えて、前記音声増幅回
路および映像処理回路に信号入力せしめると共に
、第１の入力信号より第２の入力信号への切り換
えのとき、同スイツチと連動したスイツチにより
前記第１の増幅器へのＢ電源を遮断することを特
徴とするＡＶ増幅器の入力信号切換回路。 Selectively switching a plurality of video and first input signals of left and right audio, inputting the same input signals to respective audio amplification circuits and video processing circuits through respective first amplifiers, and reproducing video and audio. In the device, a switch is provided between each of the first amplifiers, an audio amplification circuit, and a video processing circuit, and the switch allows input signals from video and left and right audio signal input terminals provided separately from the first input signal. At the same time, when switching from the first input signal to the second input signal, a switch interlocked with the second input signal inputs the signal to the audio amplification circuit and the video processing circuit. An input signal switching circuit for an AV amplifier, characterized in that the B power supply to the amplifier No. 1 is cut off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988100195U JPH0221981U (en) | 1988-07-28 | 1988-07-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988100195U JPH0221981U (en) | 1988-07-28 | 1988-07-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0221981U true JPH0221981U (en) | 1990-02-14 |
Family
ID=31328053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988100195U Pending JPH0221981U (en) | 1988-07-28 | 1988-07-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0221981U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04138362U (en) * | 1991-06-21 | 1992-12-25 | 株式会社グツドハウス | art display equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5137525A (en) * | 1974-09-26 | 1976-03-29 | Sony Corp | |
| JPS61208908A (en) * | 1985-03-14 | 1986-09-17 | Toshiba Corp | Signal selection circuit |
| JPS6214865B2 (en) * | 1980-10-06 | 1987-04-04 | Haneiueru Infuoomeishon Shisutemusu Inc |
-
1988
- 1988-07-28 JP JP1988100195U patent/JPH0221981U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5137525A (en) * | 1974-09-26 | 1976-03-29 | Sony Corp | |
| JPS6214865B2 (en) * | 1980-10-06 | 1987-04-04 | Haneiueru Infuoomeishon Shisutemusu Inc | |
| JPS61208908A (en) * | 1985-03-14 | 1986-09-17 | Toshiba Corp | Signal selection circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04138362U (en) * | 1991-06-21 | 1992-12-25 | 株式会社グツドハウス | art display equipment |