JPS54143208A - Record player system - Google Patents

Record player system

Info

Publication number
JPS54143208A
JPS54143208A JP5106978A JP5106978A JPS54143208A JP S54143208 A JPS54143208 A JP S54143208A JP 5106978 A JP5106978 A JP 5106978A JP 5106978 A JP5106978 A JP 5106978A JP S54143208 A JPS54143208 A JP S54143208A
Authority
JP
Japan
Prior art keywords
cam
arm
return
revolving shaft
motor
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
JP5106978A
Other languages
Japanese (ja)
Other versions
JPS6220603B2 (en
Inventor
Masaru Kaneko
Kazuyuki Takizawa
Makoto Kodama
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 JP5106978A priority Critical patent/JPS54143208A/en
Publication of JPS54143208A publication Critical patent/JPS54143208A/en
Publication of JPS6220603B2 publication Critical patent/JPS6220603B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To prevent the malfunction of a tone arm by automatically resetting a tone arm drive device always to a stop state by a changeover means when power supply is interrupted and resumed during automatic operation of the lead-in and return of the tone arm.
CONSTITUTION: As a motor 3 runs forward, a control cam 6 rotates clockwise, causing a lead-in lever 9 to rotate in the same direction via limiter 8 and push the pin of a brake drum 10 rotating integrally with the revolving shaft 7 of a tone arm 1, thereby rotating the arm revolving shaft 7 in the same direction. During this rotation, the arm lifter cam 16 on the cam 6 descends an arm lifter 2, thus lowering the arm onto a record disc. As the motor 3 runs backward, the abovementioned pin 11 is pushed by the return limiter 17 on the cam 6, by which the revolving shaft 7 is driven to return. During auto operation, a SW 1 detaches from the protrusion 18 of the cam 6 and its traveling contact 25 makes contact to the contact 25a and Tr 23 is OFF. When power supply is interrupted and is resumed, the FF 21 is set to operate a backward driving circuit 22, which in turn runs the motor 3 backward, thus operating the revolving shaft to return by way of the cam 6.
COPYRIGHT: (C)1979,JPO&Japio
JP5106978A 1978-04-28 1978-04-28 Record player system Granted JPS54143208A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5106978A JPS54143208A (en) 1978-04-28 1978-04-28 Record player system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5106978A JPS54143208A (en) 1978-04-28 1978-04-28 Record player system

Publications (2)

Publication Number Publication Date
JPS54143208A true JPS54143208A (en) 1979-11-08
JPS6220603B2 JPS6220603B2 (en) 1987-05-08

Family

ID=12876505

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5106978A Granted JPS54143208A (en) 1978-04-28 1978-04-28 Record player system

Country Status (1)

Country Link
JP (1) JPS54143208A (en)

Also Published As

Publication number Publication date
JPS6220603B2 (en) 1987-05-08

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