JPS6050544U - Muting circuit - Google Patents
Muting circuitInfo
- Publication number
- JPS6050544U JPS6050544U JP14151483U JP14151483U JPS6050544U JP S6050544 U JPS6050544 U JP S6050544U JP 14151483 U JP14151483 U JP 14151483U JP 14151483 U JP14151483 U JP 14151483U JP S6050544 U JPS6050544 U JP S6050544U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- muting
- switch
- turned
- muting circuit
- 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.)
- Granted
Links
Landscapes
- Noise Elimination (AREA)
- Amplifiers (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
図は本考案の１実施例を示す回路図である。
１・・・音声信号出力、２・・・パワーアンプ、３・・
・スピーカ、６・・・デツキ制御部、７・・・ラジオ状
態指示信号、８・・・テープ挿入でＯＮになるスイッチ
、１４・・・スイッチングトランジスタ、１７・・・デ
ツキをＯＮにするスイッチ、２０・・・スイッチングト
ランジスタ、２４・・・スイッチングトランジスタ。The figure is a circuit diagram showing one embodiment of the present invention. 1... Audio signal output, 2... Power amplifier, 3...
・Speaker, 6... Deck control unit, 7... Radio status instruction signal, 8... Switch that turns on when tape is inserted, 14... Switching transistor, 17... Switch that turns on the deck. 20... Switching transistor, 24... Switching transistor.
Claims (1)
、該スイッチのＯＮ時の立上り電圧にて微分回路を作動
してミューティング回路が働く様にし、また、該スイッ
チのＯＮ時にスイッチングトランジスタの電源電圧を供
給する如＜シ、デツキをＯＮにするスイッチの操作時に
該スイッチングトランジスタをＯＮにして、この時の立
上り電圧にて微分回路を作動させてミューティング回路
が働く様に構成し、さらにラジオ状態以外の時はラジオ
状態指示信号により他のスイッチングトランジスタをＯ
Ｎにしてミューティング回路が働かない様にし、必要時
以外の異常ミューティングを防止したことを特徴とする
ミュー手イング回路。A switch that turns on when the tape is inserted is inserted into the power supply circuit, and the rising voltage when the switch is turned on activates a differentiating circuit to activate the muting circuit, and when the switch is turned on, the power supply voltage of the switching transistor is When the switch to turn on the deck is operated, the switching transistor is turned on, and the rising voltage at this time activates the differential circuit to activate the muting circuit. At other times, other switching transistors are turned off by the radio status indication signal.
A muting circuit characterized in that the muting circuit is set to N so that the muting circuit does not work, thereby preventing abnormal muting except when necessary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14151483U JPS6050544U (en) | 1983-09-14 | 1983-09-14 | Muting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14151483U JPS6050544U (en) | 1983-09-14 | 1983-09-14 | Muting circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6050544U true JPS6050544U (en) | 1985-04-09 |
| JPH0227640Y2 JPH0227640Y2 (en) | 1990-07-25 |
Family
ID=30316490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14151483U Granted JPS6050544U (en) | 1983-09-14 | 1983-09-14 | Muting circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6050544U (en) |
-
1983
- 1983-09-14 JP JP14151483U patent/JPS6050544U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0227640Y2 (en) | 1990-07-25 |
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