JPS62191217U - - Google Patents
Info
- Publication number
- JPS62191217U JPS62191217U JP7978886U JP7978886U JPS62191217U JP S62191217 U JPS62191217 U JP S62191217U JP 7978886 U JP7978886 U JP 7978886U JP 7978886 U JP7978886 U JP 7978886U JP S62191217 U JPS62191217 U JP S62191217U
- Authority
- JP
- Japan
- Prior art keywords
- attenuation
- variable resistor
- bass
- enhancement
- capacitor
- 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
Links
- 239000003990 capacitor Substances 0.000 claims description 12
- 230000002787 reinforcement Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Filters And Equalizers (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
Description
第１図は本考案の音質調整回路の構成を示す図
、第２図は従来の音質調整回路の構成を示す図、
第３図は同、高音域増強減衰回路の構成を示す図
、第４図は同、入力端子をシヨートしたときの回
路の構成を示す図である。
１……入力端子、２……第１の抵抗、３……音
量調整用可変抵抗器、３ａ……同、可動接点、４
……出力端子、５……中間端子、６……第２の抵
抗、７……低音増強用コンデンサ、８……低音増
強量調整用可変抵抗器、８ａ……同、可動接点、
９……低音減衰用コンデンサ、１０……低音減衰
量調整用可変抵抗器、１０ａ……同、可動接点、
１２……高音増強用コンデンサ、１３……高音減
衰用コンデンサ、１４……高音増強減衰量調整用
可変抵抗器、１４ａ……同、可動接点、１５……
第３の固定接点。
FIG. 1 is a diagram showing the configuration of the sound quality adjustment circuit of the present invention, FIG. 2 is a diagram showing the configuration of the conventional sound quality adjustment circuit,
FIG. 3 is a diagram showing the configuration of the treble range enhancement/attenuation circuit, and FIG. 4 is a diagram showing the configuration of the circuit when the input terminal is shorted. 1... Input terminal, 2... First resistor, 3... Variable resistor for volume adjustment, 3a... Same, movable contact, 4
... Output terminal, 5 ... Intermediate terminal, 6 ... Second resistor, 7 ... Capacitor for bass enhancement, 8 ... Variable resistor for adjusting the amount of bass enhancement, 8a... Same, movable contact,
9... Capacitor for bass attenuation, 10... Variable resistor for adjusting amount of bass attenuation, 10a... Same, movable contact,
12... Capacitor for high-pitched sound enhancement, 13... Capacitor for high-pitched sound attenuation, 14... Variable resistor for adjusting the amount of high-pitched sound enhancement attenuation, 14a... Same, movable contact, 15...
Third fixed contact.
Claims (1)
号を第１の抵抗２、音量調整用可変抵抗器３を介
して接地し、当該音量調整用可変抵抗器３の可動
接点３ａ、出力端子４を介して出力信号を取り出
すようにした構成において、上記音量調整用可変
抵抗器３の中間端子５を直列接続した第２の抵抗
６、低音増強用コンデンサ７を介して接地し、当
該低音増強用コンデンサ７と並列に低音増強量調
整用可変抵抗器８を接続して低音域増強回路を構
成し、上記音量調整用可変抵抗器３と上記第１の
抵抗２との間に低音減衰用コンデンサ９を接続し
、当該低音減衰用コンデンサ９と並列に低音減衰
量調整用可変抵抗器１０を接続して低音域減衰回
路を構成し、上記音量調整用可変抵抗器３の中間
端子５を直列接続した高音増強用コンデンサ１２
、高音増強減衰量調整用可変抵抗器１４および高
音減衰用コンデンサ１３を介して接地するととも
に、上記高音増強減衰量調整用可変抵抗器１４の
可動接点１４ａを上記第１の抵抗２と低音減衰用
コンデンサ９の接続点に接続して高音域増強減衰
回路を構成し、上記高音増強減衰量調整用可変抵
抗器１４は可動接点１４ａが機械的中点にあると
きに開放状態となり、かつ、当該可動接点１４ａ
の機械的中点において、当該可動接点１４ａに接
続される第３の固定接点１５が設けられ、当該第
３の固定接点１５を上記入力端子１に接続して、
高音増強減衰量調整用可変抵抗器１４の可動接点
１４ａが機械的中点にあるとき、第１の抵抗２を
上記可動接点１４ａ、第３の固定接点１５を介し
て短絡するようにしたことを特徴とする音質調整
回路。 An input signal is input from the input terminal 1, and the input signal is grounded through the first resistor 2 and the variable resistor 3 for adjusting the volume, and the movable contact 3a of the variable resistor 3 for adjusting the volume is connected to the output terminal 4. In the configuration, the intermediate terminal 5 of the variable resistor 3 for volume adjustment is grounded via a second resistor 6 connected in series and a bass enhancement capacitor 7, and the bass enhancement capacitor 7 is grounded. 7 is connected in parallel with a variable resistor 8 for adjusting the amount of bass enhancement to constitute a bass enhancement circuit, and a bass attenuation capacitor 9 is connected between the variable resistor 3 for adjusting the volume and the first resistor 2. A variable resistor 10 for adjusting the amount of bass attenuation is connected in parallel with the bass attenuation capacitor 9 to form a bass attenuation circuit. Reinforcement capacitor 12
, is grounded via the variable resistor 14 for adjusting the amount of treble enhancement and attenuation and the capacitor 13 for attenuating the treble, and the movable contact 14a of the variable resistor 14 for adjusting the amount of treble enhancement and attenuation is connected to the first resistor 2 and the capacitor 13 for attenuating the bass. It is connected to the connection point of the capacitor 9 to constitute a treble range enhancement/attenuation circuit, and the variable resistor 14 for adjusting the amount of treble enhancement/attenuation is in an open state when the movable contact 14a is at the mechanical midpoint, and the movable Contact 14a
A third fixed contact 15 is provided at the mechanical midpoint of the movable contact 14a, and the third fixed contact 15 is connected to the input terminal 1.
When the movable contact 14a of the variable resistor 14 for treble enhancement attenuation adjustment is at the mechanical midpoint, the first resistor 2 is short-circuited via the movable contact 14a and the third fixed contact 15. Features a sound quality adjustment circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7978886U JPH0427213Y2 (en) | 1986-05-27 | 1986-05-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7978886U JPH0427213Y2 (en) | 1986-05-27 | 1986-05-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62191217U true JPS62191217U (en) | 1987-12-05 |
| JPH0427213Y2 JPH0427213Y2 (en) | 1992-06-30 |
Family
ID=30929982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7978886U Expired JPH0427213Y2 (en) | 1986-05-27 | 1986-05-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0427213Y2 (en) |
-
1986
- 1986-05-27 JP JP7978886U patent/JPH0427213Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0427213Y2 (en) | 1992-06-30 |
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