JPS6242385U - - Google Patents
Info
- Publication number
- JPS6242385U JPS6242385U JP13397985U JP13397985U JPS6242385U JP S6242385 U JPS6242385 U JP S6242385U JP 13397985 U JP13397985 U JP 13397985U JP 13397985 U JP13397985 U JP 13397985U JP S6242385 U JPS6242385 U JP S6242385U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- audio
- capacitor
- intermediate frequency
- tuned
- 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
- 230000005236 sound signal Effects 0.000 claims description 5
- 239000003990 capacitor Substances 0.000 claims 3
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Television Receiver Circuits (AREA)
Description
第１図は本考案の一実施例における音声信号再
生回路の回路図、第２図は従来の音声信号再生回
路の回路図、第３図はその切換信号発生回路の特
性図である。
２……ＳＩＦ用ＩＣ、Ｌ０……同調用可変イン
ダクタ、Ｃ１……並列容量、ＣＴ１……可変容量
、Ｔｒ１……スイツチングトランジスタ。
FIG. 1 is a circuit diagram of an audio signal reproducing circuit according to an embodiment of the present invention, FIG. 2 is a circuit diagram of a conventional audio signal reproducing circuit, and FIG. 3 is a characteristic diagram of the switching signal generating circuit. 2...SIF IC, L0...tuning variable inductor, C1...parallel capacitance, CT1...variable capacitance, Tr1...switching transistor.
Claims (1)
ヨン音声信号を受信できるテレビジヨン受像機の
音声信号再生回路であつて、音声検波回路を含む
音声中間周波回路と、この音声中間周波回路に接
続され、第１コンデンサ及びトランスにより構成
される第１同調回路と、この第１同調回路に並列
に第２コンデンサが接続されたとき構成される第
２同調回路と、前記第２コンデンサを前記第１同
調回路に選択的に接続するスイツチングトランジ
スタとを備えるテレビジヨン受像機の音声信号再
生回路。 An audio signal reproducing circuit for a television receiver capable of receiving a plurality of television audio signals having different intercarrier frequencies, the audio intermediate frequency circuit including an audio detection circuit, the audio intermediate frequency circuit being connected to the audio intermediate frequency circuit, and a first capacitor and a first tuned circuit configured by a transformer; a second tuned circuit configured when a second capacitor is connected in parallel to the first tuned circuit; and a second tuned circuit configured to selectively connect the second capacitor to the first tuned circuit. An audio signal reproducing circuit for a television receiver, comprising a switching transistor to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13397985U JPS6242385U (en) | 1985-08-30 | 1985-08-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13397985U JPS6242385U (en) | 1985-08-30 | 1985-08-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6242385U true JPS6242385U (en) | 1987-03-13 |
Family
ID=31034785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13397985U Pending JPS6242385U (en) | 1985-08-30 | 1985-08-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6242385U (en) |
-
1985
- 1985-08-30 JP JP13397985U patent/JPS6242385U/ja active Pending
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