JPS5811329U

JPS5811329U - Tuning circuit

Info

Publication number: JPS5811329U
Application number: JP10337281U
Authority: JP
Inventors: 雅一横山
Original assignee: 松下電器産業株式会社
Priority date: 1981-07-14
Filing date: 1981-07-14
Publication date: 1983-01-25

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は、図面上のチャンネル表示駆動の基本回路図、
第２図は第１図の各部の電圧波形を示す図、第３図ａは
、第１図Ｒ１の値による各部波形の変化を示す図、第３
図すは、第１図Ｒ１の値による画面表示バーの変化を示
す図、第４図は、第１図Ｒ３の値による各部波形の変化
と画面表示バーの変化を示す図、第５図は、本考案に基
づく回路図、第６図は、第５図の回路動作時における画
面表示バーの変化を示す図である。Ｓ□・・・ＶＨＦハイバンドの切換スイッチ、Ｓ２・・
・ＶＨＦローバンドの切換スイッチ、１・・・画面、Ａ
〜Ｄ・・・画面表示バー。 −第２図第４図Figure 1 is a basic circuit diagram of the channel display drive on the drawing.
FIG. 2 is a diagram showing the voltage waveform of each part in FIG. 1, FIG.
Figure 4 shows the changes in the screen display bar depending on the value of R1 in Figure 1, Figure 4 shows the changes in the waveform of each part and the screen display bar depending on the value of R3 in Figure 1, and Figure 5 shows the change in the screen display bar depending on the value of R3 in Figure 1. , a circuit diagram based on the present invention, FIG. 6 is a diagram showing changes in the screen display bar during operation of the circuit of FIG. 5. S□...VHF high band selector switch, S2...
・VHF low band selector switch, 1...screen, A
~D...Screen display bar. -Figure 2Figure 4

Claims

[Scope of utility model registration request]

In the automatic search tuning tuning circuit, the channel display on the screen continuously moves from the left or right edge of the screen to the right or left edge in response to the transition from the VHF low channel to the high channel and vice versa. A channel selection circuit characterized by.