JPS5774863A - Record player - Google Patents
Record playerInfo
- Publication number
- JPS5774863A JPS5774863A JP15006980A JP15006980A JPS5774863A JP S5774863 A JPS5774863 A JP S5774863A JP 15006980 A JP15006980 A JP 15006980A JP 15006980 A JP15006980 A JP 15006980A JP S5774863 A JPS5774863 A JP S5774863A
- Authority
- JP
- Japan
- Prior art keywords
- accordance
- arm
- record
- detecting means
- driving 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.)
- Pending
Links
Abstract
PURPOSE: To hold a PU arm moved to a record position at a correct position, by servo-controlling a PU driving motor by an output of a position detecting means of the PU arm.
CONSTITUTION: A position detecting means 10 generates an output signal which is varied in accordance with a turning position of a horizontal turning shaft 11 for supporting a PU arm 12. That is to say, in accordance with size of a record, a sensor plate 13 having three slits is provided. When the turning shaft 11 is turned by a driving motor 70, the output of the detecting means 10 is amplified 20, and after that, is detected by a level detecting circuit 30. A level of this detecting signal is compared with a prescribed level by a motor driving circuit 60 in accordance with the record size information from an operation part 50. In accordance with its result, the driving circuit 60 servo-controls the driving motor 70. In this way, the PU arm which has moved up to the record position is held at a correct position without shifting its position.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15006980A JPS5774863A (en) | 1980-10-28 | 1980-10-28 | Record player |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15006980A JPS5774863A (en) | 1980-10-28 | 1980-10-28 | Record player |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5774863A true JPS5774863A (en) | 1982-05-11 |
Family
ID=15488833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15006980A Pending JPS5774863A (en) | 1980-10-28 | 1980-10-28 | Record player |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5774863A (en) |
-
1980
- 1980-10-28 JP JP15006980A patent/JPS5774863A/en active Pending
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