JPS56111160A - Automatic return device of tone arm - Google Patents

Automatic return device of tone arm

Info

Publication number
JPS56111160A
JPS56111160A JP1279180A JP1279180A JPS56111160A JP S56111160 A JPS56111160 A JP S56111160A JP 1279180 A JP1279180 A JP 1279180A JP 1279180 A JP1279180 A JP 1279180A JP S56111160 A JPS56111160 A JP S56111160A
Authority
JP
Japan
Prior art keywords
playing
circuit
gate
start circuit
tone arm
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
JP1279180A
Other languages
Japanese (ja)
Inventor
Shiyunkichi Hioki
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.)
KATO DENKI KK
KATO ELECTRIC
Original Assignee
KATO DENKI KK
KATO ELECTRIC
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 KATO DENKI KK, KATO ELECTRIC filed Critical KATO DENKI KK
Priority to JP1279180A priority Critical patent/JPS56111160A/en
Publication of JPS56111160A publication Critical patent/JPS56111160A/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
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/02—Arrangements of heads
    • G11B3/08—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers
    • G11B3/085—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers using automatic means
    • G11B3/08503—Control of drive of the head
    • G11B3/08506—Control of drive of the head for pivoting pick-up arms
    • G11B3/08512—Control of drive of the head for pivoting pick-up arms using optical detecting means

Landscapes

  • Feeding And Guiding Record Carriers (AREA)

Abstract

PURPOSE:To enable to detect the position of end of playing for two types of different record discs from the diameter, by using a photointerrupter as a pulse generating means and operating the gate start circuit producing pulses respectively through the photodetection and interruption by a photoelectric conversion element. CONSTITUTION:In playing an LP record disc, a selector switch 8 is selected to the 30cm position to start playing disc. In this case, a shutter plate 4 is inserted between a light emitting element 5 and a photoelectric conversion element 6, inhibiting the signal for the 1st start circuit 7 to operate a gate circuit 16. Since the 2nd start circuit 9 produces no signal to the gate circuit 16 at the same time, the drive motor 19 for the tone arm automatic return is not operated. When the playing is finished and light passes through from the through-hole 4a of the shutter plate 4, a signal is fed to the start circuit 20 of the drive motor 19 at the output terminal 16c of the gate circuit 16 with the output from the first gate start circuit 7 for the automatic return of the tone arm.
JP1279180A 1980-02-05 1980-02-05 Automatic return device of tone arm Pending JPS56111160A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1279180A JPS56111160A (en) 1980-02-05 1980-02-05 Automatic return device of tone arm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1279180A JPS56111160A (en) 1980-02-05 1980-02-05 Automatic return device of tone arm

Publications (1)

Publication Number Publication Date
JPS56111160A true JPS56111160A (en) 1981-09-02

Family

ID=11815216

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1279180A Pending JPS56111160A (en) 1980-02-05 1980-02-05 Automatic return device of tone arm

Country Status (1)

Country Link
JP (1) JPS56111160A (en)

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