JPS6168327U - - Google Patents
Info
- Publication number
- JPS6168327U JPS6168327U JP15136784U JP15136784U JPS6168327U JP S6168327 U JPS6168327 U JP S6168327U JP 15136784 U JP15136784 U JP 15136784U JP 15136784 U JP15136784 U JP 15136784U JP S6168327 U JPS6168327 U JP S6168327U
- Authority
- JP
- Japan
- Prior art keywords
- light emitting
- emitting diode
- changeover switch
- voltage
- power supply
- 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
- 230000002457 bidirectional effect Effects 0.000 claims 1
Description
図示した回路は、本考案の表示回路の一実施例
である。
主な図番の説明、１…第１磁気ヘツド、２…第
２磁気ヘツド、３…選択増幅回路、４…前置増幅
回路、５…スイツチ回路、８…電源線路、１４…
主増幅回路、１８…電池、１９…第１分圧回路、
２２…第１発光ダイオード、２３…切換スイツチ
、２４…第２分圧回路、２７…第２発光ダイオー
ド、２８…制御トランジスター、３０…ダイオー
ド。
The illustrated circuit is one embodiment of the display circuit of the present invention. Explanation of main drawing numbers: 1...First magnetic head, 2...Second magnetic head, 3 ...Selection amplifier circuit, 4...Preamplifier circuit, 5...Switch circuit, 8...Power supply line, 14...
Main amplifier circuit, 18...Battery, 19 ...First voltage dividing circuit,
22... First light emitting diode, 23... Selector switch, 24 ... Second voltage dividing circuit, 27... Second light emitting diode, 28... Control transistor, 30... Diode.
Claims (1)
向である第２方向への再生機能を有するテープレ
コーダーにおいて、磁気テープの駆動方向に対応
して開閉される切換スイツチと、電源線路と接地
間に直列接続されている第１及び第２の抵抗より
なる第１分圧回路と、アノードが電源線路に接続
されていると共にカソードが前記第１分圧回路の
分圧点に接続されている第１発光ダイオードと、
前記切換スイツチが閉成状態にあるとき電源線路
と接地間に直列接続される第１及び第２の抵抗よ
り成る第２分圧回路と、アノードが前記切換スイ
ツチを介して電源線路に接続されると共にカソー
ドが前記第２分圧回路の分圧点に接続されている
第２発光ダイオードと、アノードが前記切換スイ
ツチを介して電源線路に接続されていると共にカ
ソードが前記第１分圧回路の分圧点に接続されて
いるダイオードとより成り、前記切換スイツチが
開放状態にあるときには前記第１発光ダイオード
を点灯せしめることにより再生方向を表示すると
共に該第１発光ダイオードの非点灯により電源電
圧の低下を表示し、前記切換スイツチが閉成状態
にあるときには前記第２発光ダイオードを点灯せ
しめることにより再生方向を表示すると共に該第
２発光ダイオードの非点灯により電源電圧の低下
を表示するようにしたことを特徴とする両方向再
生機能付テープレコーダーの表示回路。 In a tape recorder having a playback function in a first direction and a playback function in a second direction opposite to the first direction, a changeover switch that opens and closes in accordance with the driving direction of the magnetic tape, a power supply line, and a grounding line are provided. a first voltage divider circuit including first and second resistors connected in series therebetween; an anode connected to a power supply line and a cathode connected to a voltage division point of the first voltage divider circuit; a first light emitting diode;
a second voltage divider circuit comprising first and second resistors connected in series between the power line and ground when the changeover switch is in a closed state; and an anode connected to the power line through the changeover switch. and a second light emitting diode whose cathode is connected to the voltage dividing point of the second voltage dividing circuit, and whose anode is connected to the power supply line via the changeover switch and whose cathode is connected to the voltage dividing point of the first voltage dividing circuit. When the changeover switch is in an open state, the first light emitting diode is turned on to indicate the playback direction, and the first light emitting diode is not turned on to lower the power supply voltage. and when the changeover switch is in a closed state, the second light emitting diode is turned on to indicate the playback direction, and the second light emitting diode is not turned on to indicate a drop in the power supply voltage. A display circuit for a tape recorder with a bidirectional playback function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15136784U JPS6168327U (en) | 1984-10-05 | 1984-10-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15136784U JPS6168327U (en) | 1984-10-05 | 1984-10-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6168327U true JPS6168327U (en) | 1986-05-10 |
Family
ID=30709482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15136784U Pending JPS6168327U (en) | 1984-10-05 | 1984-10-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6168327U (en) |
-
1984
- 1984-10-05 JP JP15136784U patent/JPS6168327U/ja active Pending
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