JPS5585182A - Demagnetizing unit for color television receiver - Google Patents
Demagnetizing unit for color television receiverInfo
- Publication number
- JPS5585182A JPS5585182A JP15822078A JP15822078A JPS5585182A JP S5585182 A JPS5585182 A JP S5585182A JP 15822078 A JP15822078 A JP 15822078A JP 15822078 A JP15822078 A JP 15822078A JP S5585182 A JPS5585182 A JP S5585182A
- Authority
- JP
- Japan
- Prior art keywords
- scr7
- power supply
- demagnetizing
- switching element
- television receiver
- 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
Landscapes
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Abstract
PURPOSE: To enable to obtain sharp picture at all times, by making delay the drive time of switching element with ON operation of power supply switch, producing the attenuation oscillation current to the demagnetizing coil with the switching operation of the switching element and blocking the production of spark.
CONSTITUTION: The anode of SCR7 as the switching element is connected at the anode of the power supply 1 in parallel with the demagnetizing circuit A connecting the capacitor 4 and the demagnetizing coil 6 in series, and the diode 8 is connected in parallel with SCR7 in opposite polarity. The drive time of SCR7 is delayed from the ON operation of the power supply switch 2 and production of spark is blocked by generating the attenuation oscillation current to the demagnetizing coil 6 with the switching operation of SCR7 and the switch defection is avoided from this to obtain sharp picture at all times.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15822078A JPS5585182A (en) | 1978-12-21 | 1978-12-21 | Demagnetizing unit for color television receiver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15822078A JPS5585182A (en) | 1978-12-21 | 1978-12-21 | Demagnetizing unit for color television receiver |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5585182A true JPS5585182A (en) | 1980-06-26 |
JPS6357996B2 JPS6357996B2 (en) | 1988-11-14 |
Family
ID=15666899
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15822078A Granted JPS5585182A (en) | 1978-12-21 | 1978-12-21 | Demagnetizing unit for color television receiver |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5585182A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57131068U (en) * | 1981-02-05 | 1982-08-16 | ||
JPS57166475U (en) * | 1981-04-14 | 1982-10-20 | ||
JPS5836094A (en) * | 1981-08-26 | 1983-03-02 | Matsushita Electric Ind Co Ltd | Magnetic eraser |
JPH01316085A (en) * | 1988-04-18 | 1989-12-20 | Sony Tektronix Corp | Degaussing system |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49146835U (en) * | 1973-04-17 | 1974-12-18 |
-
1978
- 1978-12-21 JP JP15822078A patent/JPS5585182A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49146835U (en) * | 1973-04-17 | 1974-12-18 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57131068U (en) * | 1981-02-05 | 1982-08-16 | ||
JPS57166475U (en) * | 1981-04-14 | 1982-10-20 | ||
JPS5836094A (en) * | 1981-08-26 | 1983-03-02 | Matsushita Electric Ind Co Ltd | Magnetic eraser |
JPH01316085A (en) * | 1988-04-18 | 1989-12-20 | Sony Tektronix Corp | Degaussing system |
JPH0439270B2 (en) * | 1988-04-18 | 1992-06-29 |
Also Published As
Publication number | Publication date |
---|---|
JPS6357996B2 (en) | 1988-11-14 |
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