JPS5720964A - Record player - Google Patents

Record player

Info

Publication number
JPS5720964A
JPS5720964A JP9532380A JP9532380A JPS5720964A JP S5720964 A JPS5720964 A JP S5720964A JP 9532380 A JP9532380 A JP 9532380A JP 9532380 A JP9532380 A JP 9532380A JP S5720964 A JPS5720964 A JP S5720964A
Authority
JP
Japan
Prior art keywords
motor
circuit
driving
turntable
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
JP9532380A
Other languages
Japanese (ja)
Inventor
Mitsuo Osawa
Hiroshi Nakazawa
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP9532380A priority Critical patent/JPS5720964A/en
Publication of JPS5720964A publication Critical patent/JPS5720964A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/06—Control of operating function, e.g. switching from recording to reproducing by counting or timing of machine operations
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/22—Brakes other than speed-regulating brakes

Abstract

PURPOSE:To see the label of a record disk at a correct position all the time by driving a motor stepwise continuously from some point in time before a turntable reaches its initial position and by stopping it at the initial position. CONSTITUTION:When a start switch 14 is pushed, an FF13 operates a control circuit 12 to change switch circuits 11a and 11b over to fixed-contact N sides, and a servo circuit 3 and a motor driving circuit 4 drives a turntable at a constant rotational frequency through a motor 1. With a stop switch 15, an FF13 operates the circuit 12 to change the circuits 11a and 11b over to fixed-contact S sides and 90 deg. out-of-phase pulse signals from a driving pulse generating circuit 20 are supplied to coils 5a and 5b of the motor 1, driving the motor 1 stepwise. Once a final pulse at the point of time when the switch 15 is pushed is counted 17, a single-rotation signal from a decoder 18 stops the operation of a transmitting circuit 19, and a record on the turntable is stopped so that its level position is corrected.
JP9532380A 1980-07-11 1980-07-11 Record player Pending JPS5720964A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9532380A JPS5720964A (en) 1980-07-11 1980-07-11 Record player

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9532380A JPS5720964A (en) 1980-07-11 1980-07-11 Record player

Publications (1)

Publication Number Publication Date
JPS5720964A true JPS5720964A (en) 1982-02-03

Family

ID=14134522

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9532380A Pending JPS5720964A (en) 1980-07-11 1980-07-11 Record player

Country Status (1)

Country Link
JP (1) JPS5720964A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190088885A (en) 2018-01-19 2019-07-29 오르가노 코포레이션 Water treatment method and water treatment apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190088885A (en) 2018-01-19 2019-07-29 오르가노 코포레이션 Water treatment method and water treatment apparatus

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