JPS6416094A - Degaussing device for television receiver - Google Patents
Degaussing device for television receiverInfo
- Publication number
- JPS6416094A JPS6416094A JP17164687A JP17164687A JPS6416094A JP S6416094 A JPS6416094 A JP S6416094A JP 17164687 A JP17164687 A JP 17164687A JP 17164687 A JP17164687 A JP 17164687A JP S6416094 A JPS6416094 A JP S6416094A
- Authority
- JP
- Japan
- Prior art keywords
- degaussing
- television receiver
- photocoupler
- turned
- cathode
- 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
Landscapes
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Abstract
PURPOSE:To eliminate magnetization of a cathode-ray tube suitably by providing a degaussing circuit supplying a degaussing current to a degaussing coil by an output of a detection means. CONSTITUTION:A television receiver main body 5 is rotated to move a photocoupler component 9, then the optical path P of the photocoupler 9 is shut by a shield plate 8a on the way of movement, a phototransistor(TR) Q0 of the photocoupler circuit 14 is turned off and a 1st TR Q1 is also turned off. Thus, a charging current flows to a capacitor C1 from a power terminal +Vcc via a resistor R3 and reverse-current preventing diode (1st diode) D1 to turn on the 2nd TR Q2 having been so far turned off. Then a relay RL1 is energized, a degaussing current flows to the degaussing coil 15 to apply degaussing. Thus, the magnetization of the cathode-ray tube 17 caused due to the rotation of the television receiver main body 15 is eliminated suitably.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17164687A JPS6416094A (en) | 1987-07-09 | 1987-07-09 | Degaussing device for television receiver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17164687A JPS6416094A (en) | 1987-07-09 | 1987-07-09 | Degaussing device for television receiver |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6416094A true JPS6416094A (en) | 1989-01-19 |
Family
ID=15927071
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17164687A Pending JPS6416094A (en) | 1987-07-09 | 1987-07-09 | Degaussing device for television receiver |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6416094A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6458188A (en) * | 1987-08-28 | 1989-03-06 | Nec Corp | Degaussing circuit for cathode ray tube display device |
EP0449108A2 (en) * | 1990-03-27 | 1991-10-02 | Ferguson Limited | Degaussing circuit for a picture tube |
US6556412B1 (en) * | 1998-11-12 | 2003-04-29 | Lg Electronics Inc. | Degaussing apparatus and method for rotatable video display apparatus |
-
1987
- 1987-07-09 JP JP17164687A patent/JPS6416094A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6458188A (en) * | 1987-08-28 | 1989-03-06 | Nec Corp | Degaussing circuit for cathode ray tube display device |
EP0449108A2 (en) * | 1990-03-27 | 1991-10-02 | Ferguson Limited | Degaussing circuit for a picture tube |
EP0449108A3 (en) * | 1990-03-27 | 1992-10-21 | Ferguson Limited | Degaussing circuit for a picture tube |
US6556412B1 (en) * | 1998-11-12 | 2003-04-29 | Lg Electronics Inc. | Degaussing apparatus and method for rotatable video display apparatus |
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