JPS6236445U

JPS6236445U -

Info

Publication number: JPS6236445U
Application number: JP12801985U
Authority: JP
Priority date: 1985-08-22
Filing date: 1985-08-22
Publication date: 1987-03-04
Anticipated expiration: 2000-08-22
Also published as: JPH0610505Y2

Description

[Brief explanation of the drawing]

図示した回路は、本考案のモーター制御回路の
一実施例である。主な図番の説明、７……制御回路、１３……録
音切換回路、１４……第１早送り切換回路、１５
……第２早送り切換回路、１６……第１再生切換
回路、１７……第２再生切換回路、１８……第１
表示用トランジスター、２１……第１発光ダイオ
ード、２２……第２表示用トランジスター、２５
……第２発光ダイオード、２６……キヤプスタン
モーター、２７……第１駆動トランジスター、３
１……第２駆動トランジスター。 The illustrated circuit is one embodiment of the motor control circuit of the present invention. Explanation of main drawing numbers, 7... Control circuit, 13... Recording switching circuit, 14... First fast forward switching circuit, 15
...Second fast-forward switching circuit, 16...First playback switching circuit, 17...Second playback switching circuit, 18...First
Display transistor, 21...First light emitting diode, 22...Second display transistor, 25
...Second light emitting diode, 26...Capstan motor, 27...First drive transistor, 3
1...Second drive transistor.

Claims

[Scope of utility model registration request]

Rotatably drives a capstan shaft that has a playback function in a first direction and a playback function in a second direction opposite to the first direction, and works in cooperation with a pinch roller to drive the magnetic tape at a constant speed during playback operation. In a cassette tape recorder equipped with a capstan motor and a reel motor that rotationally drives a reel shaft, there is a first playback switch that is switched when the playback operation is performed in the first direction, and a second playback switch that is switched when the playback operation is performed in the second direction. 2 playback switch,
a first reproducing switch that outputs a reproducing switching signal when the first reproducing switch and the second reproducing switch are switched;
A control circuit that has a reproduction output terminal and a second reproduction output terminal and is reset when the power is cut off, and becomes operational when a reproduction switching signal is output to the first reproduction output terminal of the control circuit. When the drive mechanism of the tape recorder is outputted to the first playback switching circuit and the second playback output terminal of the control circuit, the drive mechanism of the tape recorder is put into the playback operation state in the first direction. a second device that puts the drive mechanism of the tape recorder into a state of playback operation in the second direction;
When a regeneration switching signal is output to the regeneration switching circuit and the first regeneration output terminal, the first light emitting element is immediately activated and lights up to indicate that a regeneration operation in a first direction has been performed. a first display transistor; and a second light emitting element that becomes operational immediately when a regeneration switching signal is output to the second regeneration output terminal and displays that a regeneration operation in a second direction has been performed. The device comprises a second display transistor for lighting, and a drive circuit for rotationally driving the capstan motor, and the operation of the motor drive circuit is controlled by the first display transistor and the second display transistor. A motor control circuit for a cassette tape recorder featuring: