JPS6152304U - - Google Patents
Info
- Publication number
- JPS6152304U JPS6152304U JP13769184U JP13769184U JPS6152304U JP S6152304 U JPS6152304 U JP S6152304U JP 13769184 U JP13769184 U JP 13769184U JP 13769184 U JP13769184 U JP 13769184U JP S6152304 U JPS6152304 U JP S6152304U
- Authority
- JP
- Japan
- Prior art keywords
- switch
- tape recorder
- state
- magnetic head
- closed
- 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
- 230000003321 amplification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Description
図示した回路は本考案の制御回路の一実施例で
ある。
主な図番の説明、１…左チヤンネル用第１磁気
ヘツド、２…右チヤンネル用第１磁気ヘツド、３
…左チヤンネル用第２磁気ヘツド、４…右チヤン
ネル用第２磁気ヘツド、５…増幅制御回路、１０
…左チヤンネル用再生用増幅回路、１２…右チヤ
ンネル用再生用増幅回路、１４…スイツチ回路、
１７…制御端子、１８…第１スイツチ、１９…第
１トランジスター、２２…第２スイツチ、２４…
第２トランジスター、２６…制御スイツチ。
The illustrated circuit is one embodiment of the control circuit of the present invention. Explanation of main drawing numbers, 1...First magnetic head for left channel, 2...First magnetic head for right channel, 3
...Second magnetic head for left channel, 4...Second magnetic head for right channel, 5 ...Amplification control circuit, 10
...Reproduction amplifier circuit for left channel, 12...Reproduction amplifier circuit for right channel, 14...Switch circuit,
17... Control terminal, 18... First switch, 19... First transistor, 22... Second switch, 24...
Second transistor, 26...control switch.
Claims (1)
備えた第１テープレコーダー及び録音再生機能を
備えた第２テープレコーダーが組込まれていると
共に第１テープレコーダーによつて再生された信
号を第２テープレコーダーにて録音するダビング
機能を有するテープレコーダーにおいて、第１テ
ープレコーダーに組込まれていると共に再生動作
を行なう第１磁気ヘツドと、第２テープレコーダ
ーに組込まれていると共に録音再生動作を行なう
第２磁気ヘツドと、前記第１磁気ヘツド又は第２
磁気ヘツドにより再生された信号が入力されると
共に該信号を増幅する再生用増幅回路と、第１状
態にあるとき第１磁気ヘツドにより再生された信
号を前記再生用増幅回路に導くと共に第２状態に
あるとき第２磁気ヘツドにより再生された信号を
該再生用増幅回路に導くスイツチ回路と、第１テ
ープレコーダーの再生操作が行なわれると閉成さ
れる第１スイツチと、第２テープレコーダーの再
生操作が行なわれると閉成される第２スイツチと
、該第２スイツチが開放状態にあるとき前記第１
スイツチが閉成されると導通状態になると共に前
記スイツチ回路を第１状態にせしめる第１トラン
ジスターと、前記第１スイツチが開放状態にある
とき前記第２スイツチが閉成されると導通状態に
なると共に前記第１トランジスターを逆バイアス
状態にせしめる第２トランジスターと、ダビング
状態にあるとき切換えられると共に前記スイツチ
回路を第１状態にせしめる制御スイツチとより成
り、前記第１スイツチより先に第２スイツチが閉
成されたときのみ前記スイツチ回路を第２状態に
せしめるようにしたことを特徴とするテープレコ
ーダーの制御回路。 A first tape recorder having at least a playback function and a second tape recorder having a recording and playback function are built into the same cabinet, and the signal played by the first tape recorder is transmitted to the second tape recorder. A tape recorder having a dubbing function for recording includes a first magnetic head that is built into the first tape recorder and performs a playback operation, and a second magnetic head that is built into the second tape recorder and performs a recording and playback operation. , the first magnetic head or the second magnetic head.
a reproducing amplifier circuit that receives a signal reproduced by the magnetic head and amplifies the signal; and a reproducing amplifier circuit that, when in a first state, guides the signal reproduced by the first magnetic head to the reproducing amplifier circuit and is in a second state. a switch circuit that guides the signal reproduced by the second magnetic head to the reproduction amplifier circuit when the first tape recorder is in play mode; a first switch that is closed when the first tape recorder is operated for reproduction; a second switch that is closed when the operation is performed, and a second switch that is closed when the second switch is in an open state;
a first transistor that becomes conductive when the switch is closed and causes the switch circuit to enter a first state; and a first transistor that becomes conductive when the second switch is closed when the first switch is open; and a second transistor that causes the first transistor to be in a reverse bias state, and a control switch that is switched when in the dubbing state and causes the switch circuit to be in the first state, and the second switch is activated before the first switch. A control circuit for a tape recorder, characterized in that the switch circuit is brought into the second state only when the switch circuit is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13769184U JPH0413763Y2 (en) | 1984-09-11 | 1984-09-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13769184U JPH0413763Y2 (en) | 1984-09-11 | 1984-09-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6152304U true JPS6152304U (en) | 1986-04-08 |
| JPH0413763Y2 JPH0413763Y2 (en) | 1992-03-30 |
Family
ID=30696102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13769184U Expired JPH0413763Y2 (en) | 1984-09-11 | 1984-09-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0413763Y2 (en) |
-
1984
- 1984-09-11 JP JP13769184U patent/JPH0413763Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0413763Y2 (en) | 1992-03-30 |
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