JPS54143212A - Pickup cleaner - Google Patents
Pickup cleanerInfo
- Publication number
- JPS54143212A JPS54143212A JP5166578A JP5166578A JPS54143212A JP S54143212 A JPS54143212 A JP S54143212A JP 5166578 A JP5166578 A JP 5166578A JP 5166578 A JP5166578 A JP 5166578A JP S54143212 A JPS54143212 A JP S54143212A
- Authority
- JP
- Japan
- Prior art keywords
- stylus
- amplifier
- pickup
- oscillation
- circuit
- 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
Abstract
PURPOSE: To clean the pickup of a video disc player without using any brush or the like and without damaging its stylus by changing over the output characteristics of the amplifier provided to the loop of the time axis varying means of the pickup to an oscillation output thereby causing the stylus of the pickup to vibrate.
CONSTITUTION: At the ordinary operation, -V is applied to changeover input terminal 54 to turn OFF the transistors 50, 57 which constitute a changeover circuit and an amplifier 48 is operated as an amplifier. To clean the stylus, +V is applied to the input terminal 54 to turn ON the transistors 50 and 57. As a result, the oscillation circuit of astable multi type is formed by the amplifier 48 and its feedback circuit. In this case, the approximate of oscillation frequency is determined by the time constant by a capacitor 51 and resistance 49. This oscillation output is applied to the stylus to vibrate the stylus, whereby the dust, dirt, etc. having accumulated on the stylus are removed through vibration.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5166578A JPS54143212A (en) | 1978-04-28 | 1978-04-28 | Pickup cleaner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5166578A JPS54143212A (en) | 1978-04-28 | 1978-04-28 | Pickup cleaner |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54143212A true JPS54143212A (en) | 1979-11-08 |
JPS6245602B2 JPS6245602B2 (en) | 1987-09-28 |
Family
ID=12893167
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5166578A Granted JPS54143212A (en) | 1978-04-28 | 1978-04-28 | Pickup cleaner |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54143212A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4621274A (en) * | 1983-09-30 | 1986-11-04 | Ricoh Company, Ltd. | Method of cleaning the record head of electrostatic image recording system of transfer type |
US6625110B2 (en) * | 2000-12-28 | 2003-09-23 | Lg Electronics Inc. | Contamination preventing device of optical head for near field recording |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6456197U (en) * | 1987-10-02 | 1989-04-07 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53118102A (en) * | 1977-03-25 | 1978-10-16 | Victor Co Of Japan Ltd | Cleaner of reproducing stylus |
JPS586202A (en) * | 1981-07-06 | 1983-01-13 | Nitto Electric Ind Co Ltd | Connecting structure for liquid separating tube and connector |
-
1978
- 1978-04-28 JP JP5166578A patent/JPS54143212A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53118102A (en) * | 1977-03-25 | 1978-10-16 | Victor Co Of Japan Ltd | Cleaner of reproducing stylus |
JPS586202A (en) * | 1981-07-06 | 1983-01-13 | Nitto Electric Ind Co Ltd | Connecting structure for liquid separating tube and connector |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4621274A (en) * | 1983-09-30 | 1986-11-04 | Ricoh Company, Ltd. | Method of cleaning the record head of electrostatic image recording system of transfer type |
US6625110B2 (en) * | 2000-12-28 | 2003-09-23 | Lg Electronics Inc. | Contamination preventing device of optical head for near field recording |
Also Published As
Publication number | Publication date |
---|---|
JPS6245602B2 (en) | 1987-09-28 |
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