JPS5784617A - Potentiometer preset type electronic tuning receiver - Google Patents

Potentiometer preset type electronic tuning receiver

Info

Publication number
JPS5784617A
JPS5784617A JP16046080A JP16046080A JPS5784617A JP S5784617 A JPS5784617 A JP S5784617A JP 16046080 A JP16046080 A JP 16046080A JP 16046080 A JP16046080 A JP 16046080A JP S5784617 A JPS5784617 A JP S5784617A
Authority
JP
Japan
Prior art keywords
switch
band
capacitor
type electronic
preset type
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
JP16046080A
Other languages
Japanese (ja)
Other versions
JPS6230535B2 (en
Inventor
Kazuo Takayama
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.)
Denso Ten Ltd
Original Assignee
Denso Ten Ltd
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 Denso Ten Ltd filed Critical Denso Ten Ltd
Priority to JP16046080A priority Critical patent/JPS5784617A/en
Publication of JPS5784617A publication Critical patent/JPS5784617A/en
Publication of JPS6230535B2 publication Critical patent/JPS6230535B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)

Abstract

PURPOSE:To enable accurate reception even if the tuning frequency is greatly shifted, by spreading IF band temporarily and extending the pull-in range of AFC, when a preset channel is switched. CONSTITUTION:A band switching control circuit 10 is a series circuit of a capacitor C22 and a switch SW0 provided in parallel with a capacitor Cc1, and when the switch SW0 is opened, the band-pass characteristics is narrow due to the coupling capacitor Cc1 only. When the switch SW0 is closed, since the coupling capacitor is (Cc1+Cc2) to be a close coupling, the band-pass characteristics of a filter 3 is extended. Thus, through the control that the switch SW0 is closed at channel switching and it is opened at the reception after the channel selection, accurate reception can be made even if the tuning frequency is greatly shifted at the preset channel switching.
JP16046080A 1980-11-14 1980-11-14 Potentiometer preset type electronic tuning receiver Granted JPS5784617A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16046080A JPS5784617A (en) 1980-11-14 1980-11-14 Potentiometer preset type electronic tuning receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16046080A JPS5784617A (en) 1980-11-14 1980-11-14 Potentiometer preset type electronic tuning receiver

Publications (2)

Publication Number Publication Date
JPS5784617A true JPS5784617A (en) 1982-05-27
JPS6230535B2 JPS6230535B2 (en) 1987-07-02

Family

ID=15715413

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16046080A Granted JPS5784617A (en) 1980-11-14 1980-11-14 Potentiometer preset type electronic tuning receiver

Country Status (1)

Country Link
JP (1) JPS5784617A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5120631A (en) * 1974-08-14 1976-02-19 Matsushita Electric Ind Co Ltd

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5120631A (en) * 1974-08-14 1976-02-19 Matsushita Electric Ind Co Ltd

Also Published As

Publication number Publication date
JPS6230535B2 (en) 1987-07-02

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