JPS5595419A - Tuning signal generating circuit - Google Patents
Tuning signal generating circuitInfo
- Publication number
- JPS5595419A JPS5595419A JP360179A JP360179A JPS5595419A JP S5595419 A JPS5595419 A JP S5595419A JP 360179 A JP360179 A JP 360179A JP 360179 A JP360179 A JP 360179A JP S5595419 A JPS5595419 A JP S5595419A
- Authority
- JP
- Japan
- Prior art keywords
- amplifier
- circuit
- video
- tuner
- inputted
- 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
Landscapes
- Television Receiver Circuits (AREA)
Abstract
PURPOSE: To fix one tuning indication point of a TV receiver of a continuously- variable tuner each for one broadcast station, by providing a 2nd video IF amplifier circuit whose band is narrower than that of a video IF amplifier circuit.
CONSTITUTION: An IF signal from tuner 1 is supplied to video IF amplifier circuit VIF1 by way of contact (a) of switch SW1 and then inputted to TV circuit 8. Further, the IF signal from tuner 1 is supplied to audio amplifier 7 through converter 5 and IF amplifier 6. Simultaneously, sound IF signal (s) from IF amplifier 6 is supplied to detection circuit 4. Here, the output of tuner 1 is inputted to 2nd VIF2 of narrow-band frequency characteristics with single-peak characteristics near a video IF carrier and its output (p) is inputted to detection circuit 4. Then, circuit 4 rectifies signals (s) and (p) to drive tuning indicator 9 on the basis of rectified values. Thus, the tuning indication of one point each for one broadcast station can be attained.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP360179A JPS5595419A (en) | 1979-01-16 | 1979-01-16 | Tuning signal generating circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP360179A JPS5595419A (en) | 1979-01-16 | 1979-01-16 | Tuning signal generating circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5595419A true JPS5595419A (en) | 1980-07-19 |
Family
ID=11561998
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP360179A Pending JPS5595419A (en) | 1979-01-16 | 1979-01-16 | Tuning signal generating circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5595419A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0397229U (en) * | 1990-01-22 | 1991-10-07 |
-
1979
- 1979-01-16 JP JP360179A patent/JPS5595419A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0397229U (en) * | 1990-01-22 | 1991-10-07 |
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