JPS60158328U - antenna tuning circuit - Google Patents

antenna tuning circuit

Info

Publication number
JPS60158328U
JPS60158328U JP4498084U JP4498084U JPS60158328U JP S60158328 U JPS60158328 U JP S60158328U JP 4498084 U JP4498084 U JP 4498084U JP 4498084 U JP4498084 U JP 4498084U JP S60158328 U JPS60158328 U JP S60158328U
Authority
JP
Japan
Prior art keywords
tuner section
antenna tuning
tuning circuit
circuit
switching
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
JP4498084U
Other languages
Japanese (ja)
Other versions
JPH0238508Y2 (en
Inventor
茂 長田
Original Assignee
アルプス電気株式会社
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 アルプス電気株式会社 filed Critical アルプス電気株式会社
Priority to JP4498084U priority Critical patent/JPS60158328U/en
Publication of JPS60158328U publication Critical patent/JPS60158328U/en
Application granted granted Critical
Publication of JPH0238508Y2 publication Critical patent/JPH0238508Y2/ja
Granted legal-status Critical Current

Links

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) [Abstract] 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 the drawing]

第１図及び第２図は従来のアンテナ同調回路、第３図は
本考案の実施例の要部回路図である。 Ｌ１〜Ｌ４はコイル、Ｃ１，Ｃはコンデンサ、Ｒ１−Ｒ
６は抵抗、Ｄｌはスイッチングダイオード、■は入力端
子、ＯＵＴは出力端子、ＨＢはハイチャネルとローチャ
ネルとの切換えを制御する電圧を加える端子、ＭＢはＶ
ＨＦチューナ部のミキサ回路の動作電圧を加える端子で
ある。1 and 2 are conventional antenna tuning circuits, and FIG. 3 is a circuit diagram of a main part of an embodiment of the present invention. L1 to L4 are coils, C1 and C are capacitors, R1-R
6 is a resistor, Dl is a switching diode, ■ is an input terminal, OUT is an output terminal, HB is a terminal that applies a voltage to control switching between high channel and low channel, MB is V
This is a terminal to which the operating voltage of the mixer circuit of the HF tuner section is applied.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ＶＨＦチューナ部とＵＨＦチューナ部とを有するテレビ
受像機のチューナに於いて、前記ＶＨＦチューナ部のハ
イチャネルとローチャネルとの切換えを行うスイッチン
グダイオードに、ＵＨＦ受信時には前記■丁チューナ部
の一部動作状態とする回路に供給する電圧を逆バイアス
として印加す回路を設けたことを特徴とするアンテナ同
調回路。In a television receiver tuner having a VHF tuner section and a UHF tuner section, a switching diode for switching between a high channel and a low channel of the VHF tuner section is configured to operate a part of the above-mentioned tuner section during UHF reception. 1. An antenna tuning circuit comprising a circuit that applies a reverse bias voltage to a circuit that is to be in a state.
JP4498084U 1984-03-30 1984-03-30 antenna tuning circuit Granted JPS60158328U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4498084U JPS60158328U (en) 1984-03-30 1984-03-30 antenna tuning circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4498084U JPS60158328U (en) 1984-03-30 1984-03-30 antenna tuning circuit

Publications (2)

Publication Number Publication Date
JPS60158328U true JPS60158328U (en) 1985-10-22
JPH0238508Y2 JPH0238508Y2 (en) 1990-10-17

Family

ID=30558059

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4498084U Granted JPS60158328U (en) 1984-03-30 1984-03-30 antenna tuning circuit

Country Status (1)

Country Link
JP (1) JPS60158328U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6363762U (en) * 1986-10-15 1988-04-27

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6363762U (en) * 1986-10-15 1988-04-27

Also Published As

Publication number Publication date
JPH0238508Y2 (en) 1990-10-17

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