JPH03102104U - - Google Patents
Info
- Publication number
- JPH03102104U JPH03102104U JP908290U JP908290U JPH03102104U JP H03102104 U JPH03102104 U JP H03102104U JP 908290 U JP908290 U JP 908290U JP 908290 U JP908290 U JP 908290U JP H03102104 U JPH03102104 U JP H03102104U
- Authority
- JP
- Japan
- Prior art keywords
- playback
- switching transistor
- recording
- switch
- tape
- 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
- 230000010355 oscillation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案の回路構成図、第２図は従来の
回路構成図である。
１……録音用増幅器、７……モータ、ＳＷ……
単一の録音再生切換スイツチ、１８……第１スイ
ツチングトランジスタ、９……第２スイツチング
トランジスタ、１０……第３スイツチングトラン
ジスタ、１２……テープスイツチ、１３……再生
スイツチ、１４……高速ダビングスイツチ、１４
……第４スイツチングトランジスタ、１７……選
択スイツチ、１９……ダイオード。
FIG. 1 is a circuit diagram of the present invention, and FIG. 2 is a conventional circuit diagram. 1... Recording amplifier, 7... Motor, SW...
Single recording/playback selector switch, 18...first switching transistor, 9...second switching transistor, 10...third switching transistor, 12...tape switch, 13...playback switch, 14... High speed dubbing switch, 14
...Fourth switching transistor, 17...Selection switch, 19...Diode.
Claims (1)
ーヤの再生信号を録音再生用テープデツキにダビ
ングするようにしたテープレコーダの切換回路に
おいて、 録音再生用テープデツキの録音再生ヘツドに接
続されたバイアス発振回路の出力線路に再生端子
が接続されると共に固定端子が接地され、電源線
路に録音端子が接続された単一の録音再生切換ス
イツチと、 前記録音再生ヘツドに供給される信号を増幅す
る録音用増幅器のＡＬＣ動作をＯＮ、ＯＦＦする
第１のスイツチングトランジスタと、 モータの速度切換回路に接続され反転動作によ
り回転速度を切換える第２スイツチングトランジ
スタと、 前記第２スイツチングトランジスタを反転動作
させるべく接続された第３スイツチングトランジ
スタと、 前記録音再生切換スイツチの録音端子と前記第
３スイツチングトランジスタのベースとの間に直
列に接続されたテープスイツチと、再生用テープ
デツキの再生スイツチ及び高速ダビングスイツチ
と、 前記モータの駆動回路と直列に接続された第４
スイツチングトランジスタと、 該第４スイツチングトランジスタのベースに対
しＣＤプレーヤの再生開始に応じて発生するハイ
レベルのモード信号を印加し、又、テープモード
の時には固定のバイアユ信号を印加する選択スイ
ツチと、 前記電源線路より前記第４スイツチングトラン
ジスタのベースに順方向に接続されたダイオード
と、 より成るテープレコーダの切換回路。[Scope of Claim for Utility Model Registration] In a switching circuit of a tape recorder which is designed to dub a playback signal from a playback tape deck or a playback signal from a CD player to a recording and playback tape deck, the switching circuit is connected to the recording and playback head of the recording and playback tape deck. a single recording/playback selector switch having a playback terminal connected to the output line of the bias oscillation circuit and a fixed terminal grounded, and a recording terminal connected to the power supply line; a first switching transistor that turns on and off the ALC operation of the recording amplifier; a second switching transistor that is connected to the speed switching circuit of the motor and switches the rotation speed by an inversion operation; and a second switching transistor that inverts the second switching transistor. a third switching transistor connected to be operated; a tape switch connected in series between the recording terminal of the recording/playback selector switch and the base of the third switching transistor; a playback switch of a playback tape deck; a high-speed dubbing switch; and a fourth motor connected in series with the drive circuit of the motor.
a switching transistor; and a selection switch that applies a high-level mode signal generated in response to the start of playback of a CD player to the base of the fourth switching transistor, and also applies a fixed bypass signal when in tape mode. A switching circuit for a tape recorder, comprising: a diode connected in a forward direction from the power supply line to the base of the fourth switching transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP908290U JPH03102104U (en) | 1990-01-31 | 1990-01-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP908290U JPH03102104U (en) | 1990-01-31 | 1990-01-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03102104U true JPH03102104U (en) | 1991-10-24 |
Family
ID=31512686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP908290U Pending JPH03102104U (en) | 1990-01-31 | 1990-01-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03102104U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5531617A (en) * | 1978-08-26 | 1980-03-06 | Tadao Shimada | Starter for air conditioning system of unmanned automobile |
| JPS60165865A (en) * | 1984-02-09 | 1985-08-29 | Yokogawa Hokushin Electric Corp | Laser printer |
| JPS6229387A (en) * | 1985-07-30 | 1987-02-07 | Matsushita Electric Ind Co Ltd | Color solid-state image pickup device |
-
1990
- 1990-01-31 JP JP908290U patent/JPH03102104U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5531617A (en) * | 1978-08-26 | 1980-03-06 | Tadao Shimada | Starter for air conditioning system of unmanned automobile |
| JPS60165865A (en) * | 1984-02-09 | 1985-08-29 | Yokogawa Hokushin Electric Corp | Laser printer |
| JPS6229387A (en) * | 1985-07-30 | 1987-02-07 | Matsushita Electric Ind Co Ltd | Color solid-state image pickup device |
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