JPH0260343U - - Google Patents

Info

Publication number
JPH0260343U
JPH0260343U JP13892488U JP13892488U JPH0260343U JP H0260343 U JPH0260343 U JP H0260343U JP 13892488 U JP13892488 U JP 13892488U JP 13892488 U JP13892488 U JP 13892488U JP H0260343 U JPH0260343 U JP H0260343U
Authority
JP
Japan
Prior art keywords
aft
control voltage
circuit
electric field
switched
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
JP13892488U
Other languages
English (en)
Other versions
JPH084753Y2 (ja
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 filed Critical
Priority to JP1988138924U priority Critical patent/JPH084753Y2/ja
Publication of JPH0260343U publication Critical patent/JPH0260343U/ja
Application granted granted Critical
Publication of JPH084753Y2 publication Critical patent/JPH084753Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Television Receiver Circuits (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Circuits Of Receivers In General (AREA)

Description

【図面の簡単な説明】
第1図は本考案のAFT回路の一実施例を示す
回路図、第2図はそのAFT制御電圧特性を示す
特性図、第3図及び第4図は何れも従来のAFT
回路の欠点を説明するための特性図である。 1……AFT検波部、2……AFT制御電圧出
力部、3……受信電界強度検出部、4……AFT
制御電圧切換部、T……検波動作オン・オフ用
のスイツチングトランジスタ。

Claims (1)

  1. 【実用新案登録請求の範囲】 (1) テレビジヨン信号の受信電界強度を検出し
    、その検出出力に応じてAFT制御電圧特性を切
    換えるようにしたことを特徴とするテレビジヨン
    受像機のAFT回路。 (2) 弱電界強度時にAFT制御電圧が増大する
    よう切換えるようにした請求項1記載のテレビジ
    ヨン受像機のAFT回路。 (3) 微弱電界強度時にAFT制御電圧がAFT
    動作停止時の一定値に切換えられるようにした請
    求項1記載のテレビジヨン受像機のAFT回路。
JP1988138924U 1988-10-25 1988-10-25 テレビジョン受像機のaft回路 Expired - Lifetime JPH084753Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988138924U JPH084753Y2 (ja) 1988-10-25 1988-10-25 テレビジョン受像機のaft回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988138924U JPH084753Y2 (ja) 1988-10-25 1988-10-25 テレビジョン受像機のaft回路

Publications (2)

Publication Number Publication Date
JPH0260343U true JPH0260343U (ja) 1990-05-02
JPH084753Y2 JPH084753Y2 (ja) 1996-02-07

Family

ID=31401708

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988138924U Expired - Lifetime JPH084753Y2 (ja) 1988-10-25 1988-10-25 テレビジョン受像機のaft回路

Country Status (1)

Country Link
JP (1) JPH084753Y2 (ja)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5794276U (ja) * 1980-11-28 1982-06-10
JPS60101871U (ja) * 1983-12-19 1985-07-11 株式会社東芝 テレビジヨン受像機
JPS6257479U (ja) * 1985-09-26 1987-04-09

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5794276U (ja) * 1980-11-28 1982-06-10
JPS60101871U (ja) * 1983-12-19 1985-07-11 株式会社東芝 テレビジヨン受像機
JPS6257479U (ja) * 1985-09-26 1987-04-09

Also Published As

Publication number Publication date
JPH084753Y2 (ja) 1996-02-07

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