JPS63106297U - - Google Patents
Info
- Publication number
- JPS63106297U JPS63106297U JP20321686U JP20321686U JPS63106297U JP S63106297 U JPS63106297 U JP S63106297U JP 20321686 U JP20321686 U JP 20321686U JP 20321686 U JP20321686 U JP 20321686U JP S63106297 U JPS63106297 U JP S63106297U
- Authority
- JP
- Japan
- Prior art keywords
- headphone
- amplifier
- speaker
- driving
- plug
- 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 2
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は本考案に係るスピーカ・ヘツドホン切
換装置の電気回路図、第２図は従来のスピーカ・
ヘツドホン切換装置の電気回路図である。
１３：第１のアンプ、１４：第２のアンプ、１
５：ミユーテイング用トランジスタ、１６：ヘツ
ドホンジヤツク、１７：スイツチ、１９：スピー
カ。
Figure 1 is an electrical circuit diagram of the speaker/headphone switching device according to the present invention, and Figure 2 is the electrical circuit diagram of the speaker/headphone switching device according to the present invention.
FIG. 3 is an electrical circuit diagram of a headphone switching device. 13: first amplifier, 14: second amplifier, 1
5: Muting transistor, 16: Headphone jack, 17: Switch, 19: Speaker.
Claims (1)
することにより音声信号をスピーカ又はヘツドホ
ンに選択的に供給するものにおいて、 機器本体側にはスピーカ駆動用の第１のアンプ
の他にヘツドホン駆動用の第２アンプを設け、 上記第１のアンプの前段に上記ヘツドホンジヤ
ツクにヘツドホンプラグが挿入されると、斯る第
１のアンプへの音声信号をミユーテイングするミ
ユーテイング手段を設けたことを特徴とするスピ
ーカ・ヘツドホン切換装置。[Scope of Claim for Utility Model Registration] In a device that selectively supplies audio signals to a speaker or a headphone by inserting and removing a headphone plug into a headphone jack, the device main body includes a first amplifier for driving the speaker and the like. A second amplifier for driving a headphone is provided in the second amplifier, and a muting means is provided upstream of the first amplifier to mute an audio signal to the first amplifier when a headphone plug is inserted into the headphone jack. A speaker/headphone switching device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20321686U JPS63106297U (en) | 1986-12-26 | 1986-12-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20321686U JPS63106297U (en) | 1986-12-26 | 1986-12-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63106297U true JPS63106297U (en) | 1988-07-09 |
Family
ID=31168338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20321686U Pending JPS63106297U (en) | 1986-12-26 | 1986-12-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63106297U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007312030A (en) * | 2006-05-17 | 2007-11-29 | Pioneer Electronic Corp | Headphone detecting circuit |
-
1986
- 1986-12-26 JP JP20321686U patent/JPS63106297U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007312030A (en) * | 2006-05-17 | 2007-11-29 | Pioneer Electronic Corp | Headphone detecting circuit |
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