JPS5489602A - Recording disc reproducer - Google Patents

Recording disc reproducer

Info

Publication number
JPS5489602A
JPS5489602A JP15650777A JP15650777A JPS5489602A JP S5489602 A JPS5489602 A JP S5489602A JP 15650777 A JP15650777 A JP 15650777A JP 15650777 A JP15650777 A JP 15650777A JP S5489602 A JPS5489602 A JP S5489602A
Authority
JP
Japan
Prior art keywords
output
motor
turntable
clock input
switch
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
Application number
JP15650777A
Other languages
Japanese (ja)
Inventor
Koichi Kobayashi
Masayuki Yoshitome
Hiroshi Otaki
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP15650777A priority Critical patent/JPS5489602A/en
Publication of JPS5489602A publication Critical patent/JPS5489602A/en
Pending legal-status Critical Current

Links

Landscapes

  • Feeding And Guiding Record Carriers (AREA)

Abstract

PURPOSE: To stabilize operation through simple operation by controlling the revolutions of a guide plate elevating motor and a turntable and the movement of a pickup arm at specified timings.
CONSTITUTION: When a play switch 22 is pushed where a magnetic disc is held inserted in the reproducer, the clock input having passed through OR 108 and inverter 109 causes the Q output of an FF 113 to invert from "0" to "1". When the output of a motor driving circuit 15 is applied to AND 116, a motor 28 starts and the arm of its revolving shaft detaches from a control switch 48, thereby turning the switch OFF. Next, when the disc is placed on a turntable, the swtich 48 goes ON to apply the clock input to the FF 113 and therefoer its Q output becomes "0", causing the motor 28 to stop. At the same time, the output of a differentiation circuit 103 becomes clock input which is then applied to an FF 114. The Q output thereof is then made "1" and is applied together with the -Q putput "1" of the FF 113 to a main motor 29 via AND 117 to start the turntable 29, hence stable reproduction is accomplished.
COPYRIGHT: (C)1979,JPO&Japio
JP15650777A 1977-12-27 1977-12-27 Recording disc reproducer Pending JPS5489602A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15650777A JPS5489602A (en) 1977-12-27 1977-12-27 Recording disc reproducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15650777A JPS5489602A (en) 1977-12-27 1977-12-27 Recording disc reproducer

Publications (1)

Publication Number Publication Date
JPS5489602A true JPS5489602A (en) 1979-07-16

Family

ID=15629265

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15650777A Pending JPS5489602A (en) 1977-12-27 1977-12-27 Recording disc reproducer

Country Status (1)

Country Link
JP (1) JPS5489602A (en)

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