JPS5492304A - Record player - Google Patents
Record playerInfo
- 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
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
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) |
-
1977
- 1977-12-29 JP JP15818677A patent/JPS5492304A/en active Pending
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