JPS61151472U - - Google Patents
Info
- Publication number
- JPS61151472U JPS61151472U JP3552885U JP3552885U JPS61151472U JP S61151472 U JPS61151472 U JP S61151472U JP 3552885 U JP3552885 U JP 3552885U JP 3552885 U JP3552885 U JP 3552885U JP S61151472 U JPS61151472 U JP S61151472U
- Authority
- JP
- Japan
- Prior art keywords
- aft
- emitting diode
- light emitting
- circuit
- channel display
- 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
- 230000010355 oscillation Effects 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を示す図である。第
２図は第１図の各部の信号波形図である。第３図
は従来の受信装置を示す図である。
Ｄ１，Ｄ２，Ｄ３……チヤンネル表示用発光ダ
イオード、Ｒ２……電流制限用抵抗（電流制限用
抵抗素子）、ＳＷ５……ＡＦＴスイツチ（ＡＦＴ
スイツチ手段、輝度切り換え手段）、５０……Ａ
ＦＴ回路、６０……チユーナ回路（チユーナ部）
。
FIG. 1 is a diagram showing an embodiment of the present invention. FIG. 2 is a signal waveform diagram of each part of FIG. 1. FIG. 3 is a diagram showing a conventional receiving device. D 1 , D 2 , D 3 ... Light emitting diode for channel display, R 2 ... Current limiting resistor (current limiting resistor element), SW 5 ... AFT switch (AFT
switch means, brightness switching means), 50...A
FT circuit, 60... tuner circuit (tuner section)
.
Claims (1)
ＡＦＴ回路と、前記ＡＦＴ回路の動作をオン、オ
フせしめるＡＦＴスイツチ手段とを、備える受信
装置に於いて、 電圧供給端子と基準電位点間に直列に接続され
るチヤンネル表示用発光ダイオード及び電流制限
用抵抗素子と、 前記電流制限用抵抗素子と前記チヤンネル表示
用発光ダイオード間の電位を前記ＡＦＴスイツチ
手段に連動して強制的に変化せしめて前記チヤン
ネル表示用発光ダイオードの発光輝度を切り換え
る輝度切り換え手段とを、 備えることを特徴とするＡＦＴ動作表示回路。[Claims for Utility Model Registration] In a receiving device comprising an AFT circuit that automatically finely adjusts the local oscillation frequency of a tuner section, and an AFT switch means that turns on and off the operation of the AFT circuit, a voltage supply terminal and A channel display light emitting diode and a current limiting resistor element are connected in series between reference potential points, and the potential between the current limiting resistor element and the channel display light emitting diode is forcibly adjusted in conjunction with the AFT switch means. An AFT operation display circuit comprising: brightness switching means for switching the light emission brightness of the channel display light emitting diode by changing the light emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3552885U JPS61151472U (en) | 1985-03-13 | 1985-03-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3552885U JPS61151472U (en) | 1985-03-13 | 1985-03-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61151472U true JPS61151472U (en) | 1986-09-19 |
Family
ID=30539891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3552885U Pending JPS61151472U (en) | 1985-03-13 | 1985-03-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61151472U (en) |
-
1985
- 1985-03-13 JP JP3552885U patent/JPS61151472U/ja active Pending
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