JPS5492304A - Record player - Google Patents

Record player

Info

Publication number
JPS5492304A
JPS5492304A JP15818677A JP15818677A JPS5492304A JP S5492304 A JPS5492304 A JP S5492304A JP 15818677 A JP15818677 A JP 15818677A JP 15818677 A JP15818677 A JP 15818677A JP S5492304 A JPS5492304 A JP S5492304A
Authority
JP
Japan
Prior art keywords
arm
record
signal
oscillator
slider
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
JP15818677A
Other languages
Japanese (ja)
Inventor
Yoshimoto Omura
Takeshi Hachimori
Kuninori Shino
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 JP15818677A priority Critical patent/JPS5492304A/en
Publication of JPS5492304A publication Critical patent/JPS5492304A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To turn a tone arm to the arbitrary position on a record through knob operation by detecting the turning position of the tone arm and comparing the signal thereof and the signal corresponding to the movement of a moving element thereby constituting a position servo system.
CONSTITUTION: The record player is so constituted that during the movement of the slider 35 of an operating knob the balance of a DC amplifier 32 to which the specified frequency is being applied from an oscillator 21 breaks and a motor 7 is driven to turn an arm 1 and this increases the inductance of the coil 20 of a position detector 21 to cause the frequency of the oscillator 21 to change and that as the arm 1 continus turing and when the arm 1 comes to a desired position the slider 35 is stopped, then the DC amplifier again balances to stop the motor 7 and that a lifter button is next operated to operate a lifter control circuit 34 with the signal from a system control circuit 33 to perform play whereby turning of the arm 1 up to the desired position of the record is made possible.
COPYRIGHT: (C)1979,JPO&Japio
JP15818677A 1977-12-29 1977-12-29 Record player Pending JPS5492304A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15818677A JPS5492304A (en) 1977-12-29 1977-12-29 Record player

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15818677A JPS5492304A (en) 1977-12-29 1977-12-29 Record player

Publications (1)

Publication Number Publication Date
JPS5492304A true JPS5492304A (en) 1979-07-21

Family

ID=15666139

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15818677A Pending JPS5492304A (en) 1977-12-29 1977-12-29 Record player

Country Status (1)

Country Link
JP (1) JPS5492304A (en)

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