JPS5871220U - television receiver - Google Patents

television receiver

Info

Publication number
JPS5871220U
JPS5871220U JP16610281U JP16610281U JPS5871220U JP S5871220 U JPS5871220 U JP S5871220U JP 16610281 U JP16610281 U JP 16610281U JP 16610281 U JP16610281 U JP 16610281U JP S5871220 U JPS5871220 U JP S5871220U
Authority
JP
Japan
Prior art keywords
tuner
television receiver
intermediate frequency
amplification circuit
frequency amplification
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
JP16610281U
Other languages
Japanese (ja)
Other versions
JPS6345051Y2 (en
Inventor
村田　典生
池田　三郎
Original Assignee
三洋電機株式会社
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 三洋電機株式会社 filed Critical 三洋電機株式会社
Priority to JP16610281U priority Critical patent/JPS5871220U/en
Publication of JPS5871220U publication Critical patent/JPS5871220U/en
Application granted granted Critical
Publication of JPS6345051Y2 publication Critical patent/JPS6345051Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Television Receiver Circuits (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Superheterodyne Receivers (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来のテレビジョン受像機の要部概略構成を示
し、゛第２図及び第３図は夫々そのＶＨＦ受信時とＵＨ
Ｆ受信時のチューナ・ＡＧＣ特性を簡略的に示す図であ
る。第４図は本考案テレビジョン受像機の一実施例を示
し、第５図はそのＵＨＦ受信時のチューナ・ＡＧＣ，特
性を簡略的に示す図である。 １・・・ＶＨＦチューナ、２・・・ＵＨＦチューナ、５
・・・プリアンプ、６・・・ＩＦフィルタ、８・・・Ｉ
Ｆ増幅回路、９・・・映像検波回路、１０・・・映像増
幅回路、１１・・・ＡＧＣ検波回路、１２・・・ＡＧＣ
遅延回路。Figure 1 shows the schematic configuration of the main parts of a conventional television receiver, and Figures 2 and 3 show the VHF reception mode and UH mode, respectively.
FIG. 3 is a diagram schematically showing tuner/AGC characteristics when receiving F. FIG. 4 shows an embodiment of the television receiver of the present invention, and FIG. 5 is a diagram schematically showing the tuner, AGC, and characteristics during UHF reception. 1...VHF tuner, 2...UHF tuner, 5
...Preamplifier, 6...IF filter, 8...I
F amplifier circuit, 9... Video detection circuit, 10... Video amplifier circuit, 11... AGC detection circuit, 12... AGC
delay circuit.

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] （１）利得の異なるＶＨＦチューナとＵＨＦチューナを
備え、このチューナの一方の出力を中間周波増幅回路に
選択的に導くと共に、前記各チューナに対して遅延ＡＧ
Ｃ動作を行なうようにしたテレビジョン受像機に於いて
、前記中間周波増幅回路の利得をＶＨＦチューナ動作時
とＵＨＦチューナ動作時とで切換えるようにしたことを
特徴とするテレビジョン受像機。(1) Equipped with a VHF tuner and a UHF tuner with different gains, the output of one of the tuners is selectively guided to an intermediate frequency amplification circuit, and a delay AG is provided for each tuner.
1. A television receiver adapted to perform C operation, characterized in that the gain of said intermediate frequency amplification circuit is switched between when a VHF tuner is operating and when a UHF tuner is operating. （２）前記利得を切換える回路は、前記中間周波増幅回
路の前段に設けた中間周波数フィルタの挿入損失補償用
のプリアンプに設けられている登録請求の範囲第１項記
載のテレビジョン受像機。(2) The television receiver according to claim 1, wherein the circuit for switching the gain is provided in a preamplifier for compensating insertion loss of an intermediate frequency filter provided upstream of the intermediate frequency amplification circuit.
JP16610281U 1981-11-07 1981-11-07 television receiver Granted JPS5871220U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16610281U JPS5871220U (en) 1981-11-07 1981-11-07 television receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16610281U JPS5871220U (en) 1981-11-07 1981-11-07 television receiver

Publications (2)

Publication Number Publication Date
JPS5871220U true JPS5871220U (en) 1983-05-14
JPS6345051Y2 JPS6345051Y2 (en) 1988-11-22

Family

ID=29958270

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16610281U Granted JPS5871220U (en) 1981-11-07 1981-11-07 television receiver

Country Status (1)

Country Link
JP (1) JPS5871220U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6142173U (en) * 1984-08-21 1986-03-18 パイオニア株式会社 Television receiver AGC device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6142173U (en) * 1984-08-21 1986-03-18 パイオニア株式会社 Television receiver AGC device

Also Published As

Publication number Publication date
JPS6345051Y2 (en) 1988-11-22

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