JPS58138432U - RF-IF tuner unit - Google Patents
RF-IF tuner unitInfo
- Publication number
- JPS58138432U JPS58138432U JP3432582U JP3432582U JPS58138432U JP S58138432 U JPS58138432 U JP S58138432U JP 3432582 U JP3432582 U JP 3432582U JP 3432582 U JP3432582 U JP 3432582U JP S58138432 U JPS58138432 U JP S58138432U
- Authority
- JP
- Japan
- Prior art keywords
- stage
- tuner
- section
- signal processing
- output terminal
- 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.)
- Pending
Links
Landscapes
- Structure Of Receivers (AREA)
- Noise Elimination (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
第１図は本考案に係るＲＦ−ＩＦチューナユニットのブ
ロック図、第２図は第１図の具体的ユニツｊ−の要部平
面図、第３図は第２図のユニットの斜視図、及び第４図
は従来のテレビ受像機のブロック図である。
１１・・・・・・入力部、１２・・・・・・チューナ部
、１３・・・・・・ＩＦ信号処理部、１４・・・・・・
出力部、１５・・・・・・電源部、１６・・・・・・シ
ャーシベース、１７．’１８・・・・・・シールドカバ
ー、１９・・・・・・シールドケース、２０・・・・・
・プリント基板、２１・・・・・・ＲＦ増幅段、２２・
・・・・・ミキサ段、２３・・・・・・局部発振段、２
４・・・・・・映像用ＩＦ増幅・検波段、２５・・・・
・・音声用ＩＦ増幅・検波段、２６・・・・・・ＲＦ入
力端子、２７．２８・・・・・・出力端子、２９・・・
・・・電源端子、３０・・・・・・コネクタ部。FIG. 1 is a block diagram of the RF-IF tuner unit according to the present invention, FIG. 2 is a plan view of the main part of the specific unit shown in FIG. 1, and FIG. 3 is a perspective view of the unit shown in FIG. FIG. 4 is a block diagram of a conventional television receiver. 11...Input section, 12...Tuner section, 13...IF signal processing section, 14...
Output section, 15...Power supply section, 16...Chassis base, 17. '18...Shield cover, 19...Shield case, 20...
・Printed circuit board, 21...RF amplification stage, 22.
...Mixer stage, 23...Local oscillation stage, 2
4...Video IF amplification/detection stage, 25...
...Audio IF amplification/detection stage, 26...RF input terminal, 27.28...Output terminal, 29...
...Power terminal, 30...Connector part.
Claims (1)
定のＩＦ比出力生成するチューナ部、映像用ＩＦ増幅・
検波段及び音声用ＩＦ増幅・検波段を含みそれぞれテレ
ビジョンヂャンネルの所要周波数帯域より低い周波数の
映像及び音声信号出力を生成するＩＦ信号処理部、及び
ＲＦ入力端子、映像信号出力端子、音声信号出力端子及
び動作制御用電源端子群を組′み込むと共に前記チュー
ナ部と前記ＩＦ信号処理部を収容するシールドケースと
を具備したＲＦ−ＩＦチューナユニット。 （２）前記シールドケースはフレーム状シャーシベース
の開口部を着脱自在のシールドカバーを装着して構成さ
べこれに前記チューナ部と前記ＩＦ信号処理部を配線し
たプリント基板をその一端部が前記シャーシベースの一
つの面から突出して組み込まね、このプリント基板の突
出部に前記出力端子を設けると共に前記シャーシベース
の別の面に入力端子を設けた実用新案登録請求の範囲第
１項に記載のＲＦ−ＩＦチューナユニット。−[Claims for Utility Model Registration] ('1) A tuner section that includes an RF amplification stage, a mixer stage, and a local oscillation stage and generates a predetermined IF ratio output;
An IF signal processing unit that includes a detection stage and an audio IF amplification/detection stage and generates video and audio signal outputs each having a frequency lower than the required frequency band of the television channel, an RF input terminal, a video signal output terminal, and an audio signal. An RF-IF tuner unit comprising a shield case incorporating an output terminal and a group of operation control power supply terminals and accommodating the tuner section and the IF signal processing section. (2) The shield case is constructed by attaching a removable shield cover to the opening of the frame-shaped chassis base, and attaches a printed circuit board on which the tuner section and the IF signal processing section are wired, one end of which is attached to the chassis base. RF utility model according to claim 1, wherein the RF is protruded from one surface of the base, and the output terminal is provided on the protrusion of the printed circuit board, and the input terminal is provided on another surface of the chassis base. -IF tuner unit. −
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3432582U JPS58138432U (en) | 1982-03-10 | 1982-03-10 | RF-IF tuner unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3432582U JPS58138432U (en) | 1982-03-10 | 1982-03-10 | RF-IF tuner unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58138432U true JPS58138432U (en) | 1983-09-17 |
Family
ID=30045822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3432582U Pending JPS58138432U (en) | 1982-03-10 | 1982-03-10 | RF-IF tuner unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58138432U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011205127A (en) * | 2011-06-08 | 2011-10-13 | Toshiba Corp | Electronic circuit module, and electronic component |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS526417B2 (en) * | 1972-10-11 | 1977-02-22 | ||
| JPS53133317A (en) * | 1977-04-27 | 1978-11-21 | Matsushita Electric Ind Co Ltd | Tuner |
-
1982
- 1982-03-10 JP JP3432582U patent/JPS58138432U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS526417B2 (en) * | 1972-10-11 | 1977-02-22 | ||
| JPS53133317A (en) * | 1977-04-27 | 1978-11-21 | Matsushita Electric Ind Co Ltd | Tuner |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011205127A (en) * | 2011-06-08 | 2011-10-13 | Toshiba Corp | Electronic circuit module, and electronic component |
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