JPH0444794U - - Google Patents
Info
- Publication number
- JPH0444794U JPH0444794U JP8631190U JP8631190U JPH0444794U JP H0444794 U JPH0444794 U JP H0444794U JP 8631190 U JP8631190 U JP 8631190U JP 8631190 U JP8631190 U JP 8631190U JP H0444794 U JPH0444794 U JP H0444794U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- acoustic signal
- external power
- amplifier circuit
- switching means
- 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 3
- 238000001514 detection method Methods 0.000 claims 1
- 230000002708 enhancing effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案の一実施例のラジオカセツトレ
コーダ２１の電気的構成を示すブロツク図、第２
図は従来技術のラジオカセツトレコーダ１の電気
的構成を示すブロツク図である。
２１……ラジオカセツトレコーダ、２３……ラ
ジオ受信部、２６……録音再生部、２７……ソー
ス選択スイツチ、２８……スピーカ、２９……ス
イツチ、３０……バツテリ、３１……ボリウム、
３２……低音域増強回路、３３……アナログスイ
ツチ、３４……電力増幅回路、３５……電源回路
、３６ａ，３６ｂ……外部接続端子、３６……商
用周波電源、ｌ１……バイパス信号ライン、Ｌ１
１……電源ライン。
FIG. 1 is a block diagram showing the electrical configuration of a radio cassette recorder 21 according to an embodiment of the present invention, and FIG.
The figure is a block diagram showing the electrical configuration of a radio cassette recorder 1 of the prior art. 21... Radio cassette recorder, 23... Radio receiving section, 26... Recording/playback section, 27... Source selection switch, 28... Speaker, 29... Switch, 30... Battery, 31... Volume,
32...Bass boost circuit, 33...Analog switch, 34...Power amplifier circuit, 35...Power supply circuit, 36a, 36b...External connection terminal, 36...Commercial frequency power supply, l1...Bypass signal line, L1
1...Power line.
Claims (1)
する低音域増強回路と、 前記音響信号を増幅する増幅回路と、 音響信号源からの音響信号と、低音域増強回路
を介する音響信号とを選択的に切換えて前記増幅
回路に与える第１切換手段と、 前記増幅回路からの音響信号を音響化するスピ
ーカと、 内蔵電源と、 外部電源が着脱自在に接続される外部電源端子
と、 内蔵電源からの電力と外部電源からの電力とを
選択的に前記増幅回路へ供給する第２切換手段と
、 前記外部電源端子に外部電源が接続されている
か否かを検出し、その検出結果に対応して前記第
１および第２切換手段のスイツチング状態を制御
する切換制御手段とを含むことを特徴とする音響
再生装置。[Claims for Utility Model Registration] An acoustic signal source, a low frequency enhancement circuit for enhancing the low frequency range of an acoustic signal from the acoustic signal source, an amplifier circuit for amplifying the acoustic signal, and an acoustic signal from the acoustic signal source. and a first switching means that selectively switches between the audio signal and the audio signal via the bass booster circuit and supplies it to the amplifier circuit, a speaker that converts the audio signal from the amplifier circuit into sound, a built-in power supply, and an external power supply that is detachable. an external power supply terminal that can be freely connected; a second switching means that selectively supplies power from the built-in power supply and power from the external power supply to the amplifier circuit; and whether an external power supply is connected to the external power supply terminal. and switching control means for detecting whether or not the first and second switching means are switched, and controlling the switching states of the first and second switching means in accordance with the detection result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8631190U JPH0444794U (en) | 1990-08-16 | 1990-08-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8631190U JPH0444794U (en) | 1990-08-16 | 1990-08-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0444794U true JPH0444794U (en) | 1992-04-16 |
Family
ID=31817920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8631190U Pending JPH0444794U (en) | 1990-08-16 | 1990-08-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0444794U (en) |
-
1990
- 1990-08-16 JP JP8631190U patent/JPH0444794U/ja active Pending
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