JPS54137304A - Control circuit for tape recorder - Google Patents

Control circuit for tape recorder

Info

Publication number
JPS54137304A
JPS54137304A JP4564478A JP4564478A JPS54137304A JP S54137304 A JPS54137304 A JP S54137304A JP 4564478 A JP4564478 A JP 4564478A JP 4564478 A JP4564478 A JP 4564478A JP S54137304 A JPS54137304 A JP S54137304A
Authority
JP
Japan
Prior art keywords
drive circuit
rendered conductive
tape
tape recorder
charges
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
Application number
JP4564478A
Other languages
Japanese (ja)
Other versions
JPS5821339B2 (en
Inventor
Takashi Shiga
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP53045644A priority Critical patent/JPS5821339B2/en
Publication of JPS54137304A publication Critical patent/JPS54137304A/en
Publication of JPS5821339B2 publication Critical patent/JPS5821339B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To make it possible to interchange the respective operations of a tape recorder with the use of the same solenoid by providing both a first drive circuit which is operated by rotation detecting means and a second drive circuit which is operated by a reproducing head.
CONSTITUTION: In case detecting means including a rotation detector 1, an amplifier 2 and a rectifier 3 detects the interruption of a tape running operation, a first device circuit 5 is rendered conductive by the output of a comparator 4 to bias a solenoid SOL. When the signals on a tape are detected by a reproducing head H, a second drive circuit 10 is rendered inconductive by the detected output. As a result, a capacitor C1 is charged with the charges of the opposite polarity to the normal one. If, under this condition, the reprodued signals by the head H disappear, the second drive circuit 10 is rendered conductive. By the charges of the capacitor C1 which has been charged to have the opposite polarity, the first drive circuit 5 is rendered conductive to bias the solenoid SOL.
COPYRIGHT: (C)1979,JPO&Japio
JP53045644A 1978-04-18 1978-04-18 Tape recorder control circuit Expired JPS5821339B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53045644A JPS5821339B2 (en) 1978-04-18 1978-04-18 Tape recorder control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53045644A JPS5821339B2 (en) 1978-04-18 1978-04-18 Tape recorder control circuit

Publications (2)

Publication Number Publication Date
JPS54137304A true JPS54137304A (en) 1979-10-25
JPS5821339B2 JPS5821339B2 (en) 1983-04-28

Family

ID=12725069

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53045644A Expired JPS5821339B2 (en) 1978-04-18 1978-04-18 Tape recorder control circuit

Country Status (1)

Country Link
JP (1) JPS5821339B2 (en)

Also Published As

Publication number Publication date
JPS5821339B2 (en) 1983-04-28

Similar Documents

Publication Publication Date Title
JPS535607A (en) Magnetic reproduction device
JPS5671855A (en) Playback device of disc
JPS5325408A (en) Reproducer
JPS54113305A (en) Tape stop detector
JPS54128313A (en) Magnetic recorder-reproducer capable of automatic setting of proper bias amount
JPS5552573A (en) Tape recorder
JPS54137304A (en) Control circuit for tape recorder
JPS5435709A (en) Recorder-reproducer
JPS51145310A (en) Resetting device of counter in cassette tape recorder
JPS5417813A (en) Magnetic recorder-reproducer
JPS56117349A (en) Tape recorder
JPS5252611A (en) Magnetic recording and playback apparatus
JPS5616979A (en) Signal reproducting unit
JPS5264958A (en) Tape position detecting system
JPS5317310A (en) Operation control system of video tape recorder
JPS53100209A (en) Tape travel controller
JPS52137368A (en) Abnormal phenomenon monitoring and recording apparatus
JPS54151011A (en) Magnetic recorder-reproducer
JPS5380210A (en) Magnetic tape device
JPS5654604A (en) Magnetic tape device
JPS54104308A (en) Recorder-reproducer
JPS5690450A (en) Recording and reproducing device
JPS53108A (en) Mechanism for cassette tape recorder
JPS5421712A (en) Magnetic recorder-reproducer
JPS52119309A (en) Drop-out detecting circuit