JPS63181015U - - Google Patents
Info
- Publication number
- JPS63181015U JPS63181015U JP7151487U JP7151487U JPS63181015U JP S63181015 U JPS63181015 U JP S63181015U JP 7151487 U JP7151487 U JP 7151487U JP 7151487 U JP7151487 U JP 7151487U JP S63181015 U JPS63181015 U JP S63181015U
- Authority
- JP
- Japan
- Prior art keywords
- power switch
- impact noise
- circuit
- manual
- noise prevention
- 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
- 230000002265 prevention Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Television Receiver Circuits (AREA)
- Amplifiers (AREA)
Description
第１図及び第３図は本考案の衝撃音防止回路の
第１及び第３実施例を搭載したＴＶ受像機のブロ
ツク図、第２図は本考案の衝撃音防止回路の第２
実施例を説明するためのブロツク図、第４図は従
来の衝撃音防止回路を搭載したＴＶ受像機のブロ
ツク図、第５図は従来の衝撃音防止回路図、第６
図は電源切断時に閉成する接点を備えた電源スイ
ツチの動作原理図である。
２…ＴＶ（テレビジヨン）受像機本体、３…電
源回路、４…整流＆電圧設定回路、５…リセツト
回路、６…制御回路、７…リモコン信号受光部、
８…音声ミユート回路、９…音声出力回路、１１
…音量制御回路、Ｓｗ…主電源スイツチ（手動式
の電源開閉器）、ＲＹ…リレー（電磁式の電源開
閉器）、Ｘ１〜Ｘ５…検出端子、Ｃ…コンデンサ
、Ｄ１〜Ｄ３…ダイオード、Ｑ１〜Ｑ３…ＮＰＮ
トランジスタ。
1 and 3 are block diagrams of a TV receiver equipped with the first and third embodiments of the impact noise prevention circuit of the present invention, and FIG. 2 is a block diagram of a TV receiver equipped with the first and third embodiments of the impact noise prevention circuit of the present invention.
FIG. 4 is a block diagram for explaining the embodiment, and FIG. 4 is a block diagram of a TV receiver equipped with a conventional impact noise prevention circuit. FIG. 5 is a conventional impact noise prevention circuit diagram.
The figure is a diagram illustrating the operating principle of a power switch equipped with a contact that closes when the power is turned off. 2...TV (television) receiver body, 3...power supply circuit, 4...rectification & voltage setting circuit, 5...reset circuit, 6...control circuit, 7...remote control signal receiver,
8...Audio mute circuit, 9...Audio output circuit, 11
...Volume control circuit, Sw...Main power switch (manual power switch), RY...Relay (electromagnetic power switch), X1 to X5 ...Detection terminal, C...Capacitor, D1 to D3 ... Diode, Q1 to Q3 ...NPN
transistor.
Claims (1)
、該電磁式の電源開閉器を作動させるスイツチン
グ素子と、音声ミユート回路とを少なくとも有す
る電子機器における衝撃音防止回路であつて、上
記手動式の電源開閉器、電磁式の電源開閉器、及
びスイツチング素子とを直列に接続すると共に、
それらの接続点のうちいずれか１つの接続点に検
出端子を接続して、該検出端子より上記音声ミユ
ート回路に動作信号を供給するよう構成すること
により、上記手動式の電源開閉器の開成時におけ
る衝撃音の発生を防止することを特徴とする衝撃
音防止回路。 An impact noise prevention circuit for an electronic device having at least a manual power switch, an electromagnetic power switch, a switching element for operating the electromagnetic power switch, and an audio mute circuit, the above-mentioned manual In addition to connecting a type power switch, an electromagnetic power switch, and a switching element in series,
By connecting a detection terminal to any one of these connection points and configuring the detection terminal to supply an operating signal to the audio mute circuit, when the manual power switch is opened, An impact noise prevention circuit characterized in that it prevents impact noise from occurring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7151487U JPS63181015U (en) | 1987-05-13 | 1987-05-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7151487U JPS63181015U (en) | 1987-05-13 | 1987-05-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63181015U true JPS63181015U (en) | 1988-11-22 |
Family
ID=30914137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7151487U Pending JPS63181015U (en) | 1987-05-13 | 1987-05-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63181015U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5854119B2 (en) * | 1980-08-28 | 1983-12-02 | 隆 藤井 | Production method of α-alumina single crystal |
| JPS60223211A (en) * | 1985-03-25 | 1985-11-07 | Hitachi Ltd | Noise preventing circuit |
-
1987
- 1987-05-13 JP JP7151487U patent/JPS63181015U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5854119B2 (en) * | 1980-08-28 | 1983-12-02 | 隆 藤井 | Production method of α-alumina single crystal |
| JPS60223211A (en) * | 1985-03-25 | 1985-11-07 | Hitachi Ltd | Noise preventing circuit |
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