JPS57147163A - Record player - Google Patents
Record playerInfo
- Publication number
- JPS57147163A JPS57147163A JP3098481A JP3098481A JPS57147163A JP S57147163 A JPS57147163 A JP S57147163A JP 3098481 A JP3098481 A JP 3098481A JP 3098481 A JP3098481 A JP 3098481A JP S57147163 A JPS57147163 A JP S57147163A
- Authority
- JP
- Japan
- Prior art keywords
- turn table
- output
- rotating angle
- pulses
- knob
- 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
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
- G11B19/20—Driving; Starting; Stopping; Control thereof
Landscapes
- Rotational Drive Of Disk (AREA)
Abstract
PURPOSE:To avoid a stylus of a cartridge from being damaged, by eliminating the need for manual rotation of a turn table at program seach, through the turning of the turn table with almost the same angle as a rotating angle of a knob. CONSTITUTION:A driving motor 3 of a turn table 1 is controlled with an output comparing an electric output in response to the rotating angle of the turn table 1 and an electric output Ev in response to the rotating angle of a manual knob 6 so that the turn table 1 turns with almost the same angle as the rotating angle of the knob 6. For example, magnetic pulses P recorded on a circumference 2 of the turn table 1 are detected at a magnetic head 4, and pulses Pw amplifying 8 and wave-shaping 9 the pulses P are counted 10 and D-A-converted 11. The output is applied to a comparison circuit 12. On the other hand, the said voltage Ev is applied to the comparison circuit 12 and the differential amplified output is applied to the motor 3 via a motor driving circuit 14.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3098481A JPS57147163A (en) | 1981-03-04 | 1981-03-04 | Record player |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3098481A JPS57147163A (en) | 1981-03-04 | 1981-03-04 | Record player |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57147163A true JPS57147163A (en) | 1982-09-10 |
JPS636936B2 JPS636936B2 (en) | 1988-02-13 |
Family
ID=12318889
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3098481A Granted JPS57147163A (en) | 1981-03-04 | 1981-03-04 | Record player |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57147163A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2509390Y2 (en) * | 1988-12-19 | 1996-09-04 | 株式会社小松製作所 | Retarder oil cooler mounting device for construction equipment dump trucks |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5036998U (en) * | 1973-08-07 | 1975-04-17 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5036998B2 (en) * | 1971-12-07 | 1975-11-28 |
-
1981
- 1981-03-04 JP JP3098481A patent/JPS57147163A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5036998U (en) * | 1973-08-07 | 1975-04-17 |
Also Published As
Publication number | Publication date |
---|---|
JPS636936B2 (en) | 1988-02-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5671855A (en) | Playback device of disc | |
JPS5342517A (en) | Field memory unit | |
JPS57147163A (en) | Record player | |
JPS5236914A (en) | Magnetic recording and reproducing device | |
JPS5383703A (en) | Centering device for recording disc of auto-player | |
JPS5512587A (en) | Control unit for reproducing speed of recording media | |
JPS5233506A (en) | Control device of the revolving component of the magnetic recording reproduction device | |
JPS57191874A (en) | Reproducing device | |
JPS5589939A (en) | Magnetic recording rotary body and its manufacture | |
JPS5517873A (en) | Support unit of cutter head in record original disc recording device | |
JPS5622255A (en) | Rotating control unit for disc recording and reproducing unit | |
JPS5668948A (en) | Magnetic tape recorder | |
JPS55105809A (en) | Record level and record bias controller | |
JPS5368203A (en) | Holder for fecording disk in automatic player | |
JPS5262408A (en) | Revolving object control system in magnetic recording reproducer | |
JPS5242706A (en) | Recording/preproducing unit | |
JPS5752390A (en) | Rotational pulse detecting circuit for reel motor | |
JPS558675A (en) | Record player | |
JPS5517817A (en) | Feed speed control device for recording media | |
JPS5690441A (en) | Discriminating device for quality of cassette tape | |
JPS5564663A (en) | Track follow-up servomechanism of magnetic disk unit | |
JPS548510A (en) | Tape recorder | |
JPS51113710A (en) | Magnetic tape unit | |
JPS5548817A (en) | Detection method of optimum recording bias for magnetic recording and reproducing unit | |
JPS5260106A (en) | Tracking control system of magnetic recording/reproducing unit |