JPS56132011A - Tuner device of television receiver - Google Patents
Tuner device of television receiverInfo
- Publication number
- JPS56132011A JPS56132011A JP3523680A JP3523680A JPS56132011A JP S56132011 A JPS56132011 A JP S56132011A JP 3523680 A JP3523680 A JP 3523680A JP 3523680 A JP3523680 A JP 3523680A JP S56132011 A JPS56132011 A JP S56132011A
- Authority
- JP
- Japan
- Prior art keywords
- tuning
- high band
- band
- vhf high
- vhf
- 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
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
- H03J5/24—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
- H03J5/242—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection
- H03J5/244—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection using electronic means
Landscapes
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
Abstract
PURPOSE:To cause the tuning range to meet standard requirements (DOC and so on), by raising the upper limit value of the tuning voltage only at the VHF high band receiving time. CONSTITUTION:Three tuning circuits are provided for the VHF low band, the VHF high band, and the UHF band, and tuning circuits and tuning voltages are switched while interlocking with the band change-over switch. Since upper and lower limit values of the receivable range in the VHF high band are regulated in DOC standards of Canada, half-fixed resistor 53 is controlled under the state, where variable resistor 51 is turned up to the upper limit, to regulate the tuning voltage, and thus, only the upper limit of the receivable range in the VHF high band is regulated effectively without influencing receiving of other bands at all. Variable resistor 54 is controlled to regulate the lower limit in the VHF high band.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3523680A JPS56132011A (en) | 1980-03-19 | 1980-03-19 | Tuner device of television receiver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3523680A JPS56132011A (en) | 1980-03-19 | 1980-03-19 | Tuner device of television receiver |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56132011A true JPS56132011A (en) | 1981-10-16 |
Family
ID=12436200
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3523680A Pending JPS56132011A (en) | 1980-03-19 | 1980-03-19 | Tuner device of television receiver |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56132011A (en) |
-
1980
- 1980-03-19 JP JP3523680A patent/JPS56132011A/en active Pending
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