JPS5585182A - Demagnetizing unit for color television receiver - Google Patents

Demagnetizing unit for color television receiver

Info

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
Application number
JP15822078A
Other languages
Japanese (ja)
Other versions
JPS6357996B2 (en
Inventor
Tamiji Nagai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Priority to JP15822078A priority Critical patent/JPS5585182A/en
Publication of JPS5585182A publication Critical patent/JPS5585182A/en
Publication of JPS6357996B2 publication Critical patent/JPS6357996B2/ja
Granted legal-status Critical Current

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
JP15822078A 1978-12-21 1978-12-21 Demagnetizing unit for color television receiver Granted JPS5585182A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49146835U (en) * 1973-04-17 1974-12-18

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49146835U (en) * 1973-04-17 1974-12-18

Cited By (5)

* Cited by examiner, † Cited by third party
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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