JPH0568216A - Television receiver - Google Patents

Abstract

PURPOSE:To obtain a television receiver which is simple in operation, and consumes less power, and is free from the possibility of a burning accident by providing a power control means to supply power to a satellite broadcast receiving tuner part for a prescribed period of time. CONSTITUTION:The satellite broadcast receiving tuner part 23 is incorporated, and picture display based on channel selection output by this satellite broadcast receiving tuner part 23 is executed by a display part (cathode ray tube) 36. Here, the power control means (system controller) 41 which executes control to supply the power to the satellite broadcast receiving tuner part 23 for the prescribed period of time at the time of an operation mode to stop the picture display by the display part 36 and output the channel selection output by the satellite broadcast receiving tuner part 23 to the outside is provided. Thus, the television receiver provided with the video recording output function which is simple in its operation and is of low power consumption and is free from the possibility of the burning accident can be obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television receiver which has a built-in satellite broadcast receiving tuner section and which causes a display section to display an image based on a channel selection output by the satellite broadcast receiving tuner section. The present invention relates to a television receiver having an operation mode in which image display by the unit is stopped and the tuning output by the satellite broadcast receiving tuner unit is output to the outside.

[0002]

2. Description of the Related Art As satellite broadcasting, currently, broadcasting satellite (B
S: Broadcasting Satellite), for example BS
Channel 3 (Japanese satellite broadcasting), BS7 channel (N
HK) and BS11 channel (NHK) broadcasting (hereinafter referred to as BS broadcasting) are being performed, and in the near future, broadcasting of images, music, etc. using communication satellites (CS: Communication Satellite) Called CS broadcasting).

In order to watch BS broadcast programs and listen to CS broadcast music programs, a dedicated receiving system is required. For example, a basic satellite broadcast receiving system for receiving a BS broadcast includes a BS antenna, a BS converter, and a BS tuner. The BS antenna efficiently collects weak radio waves from a satellite and supplies the weak radio waves to a BS converter, and a so-called parabolic antenna is widely used for consumer use. The BS converter amplifies a 12 GHz band signal received by a BS antenna and frequency-converts it into a 1 GHz band signal. In addition, the BS tuner selects (tunes) a signal of a desired channel from the frequency-converted signals, and uses so-called AGC (Automatic Gain Control), IF amplification, FM as a signal of the selected channel.
Signal processing such as demodulation, de-emphasis, and energy diffusion removal is performed, and a video signal and an audio signal are output. By supplying the video signal and the audio signal thus obtained from the BS tuner to a television receiver or the like, it is possible to watch a BS broadcast program. Also, a television receiver having a built-in BS tuner is supplied.

In BS broadcasting, the frequency band of one channel is, for example, 27 HMz, and a plurality of audio signals (hereinafter referred to as PCM audio signals) that have been pulse code modulated (PCM) with a video signal are frequency division multiplexed. After that, the FM modulation method is adopted. That is, the PCM audio signal is transmitted by PSK-modulating the subcarrier, has a wider dynamic range and a wider transmission bandwidth than terrestrial broadcasting, and allows the transmission bandwidth of two modes A and B to be selected. This A mode consists of four channels with an audio signal bandwidth of 15 KHz, two channels (two channels for monaural and one channel for stereo) of which audio signals (hereinafter referred to as TV audio signals) correspond to the contents of the video signal. , And the remaining two channels are used for the transmission of an audio signal of completely independent content (hereinafter referred to as an independent audio signal) that does not correspond to the content of the video signal. Further, the B mode is configured to have only two channels, and the bandwidth of the audio signal is set to 20 KHz, which is wider than that of the A mode, so that a wide band audio signal can be transmitted. Watching BS broadcast programs,
When recording, it is necessary to set the receiving channel and the audio mode with the above-mentioned BS tuner.

Conventionally, a television receiver with a built-in BS tuner has an output function for recording a BS broadcast program with a video tape recorder, and only the satellite broadcast receiving tuner section is constantly operated to output its channel. Of the above, or a so-called recording reservation function that sets the recording time together with the reception channel and audio mode, and that operates only the satellite broadcast reception tuner unit in conjunction with the timer function. It is provided. Also, B
When recording an S broadcast program on a video tape recorder, in order to prevent the receiving channel from being accidentally switched and the broadcast program of an unintended channel being recorded, a channel that does not accept channel switching operations There is also known one having a fixed function.

[0006]

By the way, the conventional BS
Like a television receiver with a built-in tuner, in order to record a BS broadcast program with a video tape recorder, only the satellite broadcast reception tuner section is always operated and its tuning output is output to the outside. Since the satellite broadcast receiving tuner unit is constantly operating, not only the power consumption by the satellite broadcast receiving tuner unit is large, but also the satellite broadcast receiving tuner unit may be burned out. Further, when the recording reservation function is provided, the recording time has to be set together with the reception channel and the audio mode, which causes a problem that the operation becomes complicated for the user.

Therefore, the present invention is such a conventional BS.
This was made in view of the actual situation of a television receiver with a built-in tuner, and has a built-in satellite broadcast reception tuner unit, and a television image reception unit that displays an image based on the tuning output by this satellite broadcast reception tuner unit on the display unit. It is an object of the present invention to provide a television receiver having a recording and outputting function which is easy to operate, consumes less power, and is free from the risk of a burnout accident.

[0008]

In order to solve the above problems and achieve the above object, the present invention has a satellite broadcast receiving tuner unit built-in, and an image based on a channel selection output by this satellite broadcast receiving tuner unit. In a television receiver that performs display by the display unit, when the operation mode in which the image display by the display unit is stopped and the tuning output by the satellite broadcast reception tuner unit is output to the outside, the satellite broadcast reception is performed for a predetermined time. It is characterized in that power supply control means for controlling the supply of power to the tuner section is provided.

[0009]

In the television receiver according to the present invention, the image display by the display unit for displaying an image based on the channel selection output by the built-in satellite broadcast reception tuner unit is stopped and the satellite broadcast reception tuner unit selects the channel. In the operation mode in which the output is output to the outside, the power supply control means controls the supply of power to the satellite broadcast receiving tuner unit for a predetermined time.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a television receiver according to the present invention will be described below with reference to the drawings. The television receiver according to the present invention is configured, for example, as shown in FIG. The embodiment shown in FIG. 1 has a built-in VHF / UHF tuner unit 12 for receiving terrestrial broadcasts and a BS tuner unit 23 for receiving satellite broadcasts.
An audio signal based on a channel selection output by the tuner unit 12, the BS tuner unit 23 or a decode output by an external decoder (not shown) is output from a speaker 38 via an audio process circuit 37, and a color television signal is output via a video process circuit 33. CRT 3
The present invention is applied to a television receiver which is supplied to the No. 6 to display an image.

In this television receiver, the VHF / UHF tuner unit 12 for receiving the terrestrial broadcast is a VH / UHF tuner unit.
It functions as a terrestrial broadcasting receiving unit that reproduces NTSC-compliant color television signals and audio signal signals by selecting (selecting) a desired channel signal from F or UHF terrestrial broadcasting signals. For example, the so-called Yagi -The VHF / UHF antenna 11 composed of the Uda antenna is externally connected. The VHF / UHF tuner unit 12 selects a signal of a desired channel from a terrestrial broadcast signal received via the VHF / UHF antenna 11, and performs signal processing such as amplification and detection on a signal of the selected channel. Then, the color television signal and the audio signal are reproduced. The color television signal and the audio signal of the channel selected by the VHF / UHF tuner unit 12 are supplied from the video process circuit 33 to the CRT 36 via the AV switch 32. Further, the audio signal is supplied from the audio process circuit 37 to the speaker 38 via the AV switch 32.

Further, the BS tuner unit 23 for receiving the satellite broadcasting is a satellite broadcasting using a broadcasting satellite (BS: Broadcasting Satellite) (hereinafter referred to as BS broadcasting) or a satellite broadcasting using a communication satellite (CS: Communication Satellite). It functions as a satellite broadcast receiving unit for selecting a desired channel signal from (hereinafter referred to as CS broadcast) and reproducing a color television signal and an audio signal conforming to the NTSC system. For example, a BS antenna including a so-called parabolic antenna. B for receiving satellite broadcasting to which 21 is connected
The S converter 22 is externally connected via a coaxial cable.

The BS converter 22 receives, for example, a signal in the 12 GHz band of BS broadcasting sent as a weak radio wave from a BS satellite or a CS satellite, into the BS antenna 21.
The signal is received via the receiver, amplified, frequency-converted into a 1 GHz band BS-IF signal, and the BS-IF signal is supplied to the BS tuner unit 23.

Then, the BS tuner section 23 has a BS-IF frequency-converted by the BS converter 22.
From a signal to a signal of a desired channel, for example, BS3 channel (Japanese satellite broadcasting), BS7 channel (NHK),
BS11 channel (NHK), the channel of the desired channel of CS broadcasting is tuned to, and the signal of the selected channel is
For example, so-called AGC (Automatic Gain Control), IF
Signal processing such as amplification, FM demodulation, de-emphasis, energy diffusion removal, etc. is applied to the video signal and so-called PSK (Phas
e Shift Keying (PCM) and PCM (Pulse Code Modulat)
Ionized audio signal (hereinafter referred to as PCM audio signal) is reproduced.

The video signal and the PCM audio signal of the channel selected by the BS tuner 23 are supplied to an external decoder (not shown) through the external output terminals 28a to 28c, and the video signal is supplied to the video processing circuit 24. Also, the PCM audio signal is supplied to the PSK demodulator 25.

The video processing circuit 24 sends the video signal of the channel selected by the BS tuner 23 to the NT.
Converts to a color television signal conforming to the SC system. The color television signal obtained by the video processing circuit 24 is supplied to the cathode ray tube 36 from the video process circuit 33 via the AV switch 32.

Further, the PSK demodulator 25 is the BS
The tuner unit 23 demodulates the PSK-modulated PCM audio signal of the selected channel to reproduce the PCM audio signal and detects the scrambled state of the PCM audio signal or the like. The PSK demodulator 25
The PCM audio signal demodulated by is converted into an analog audio signal by a digital / analog (hereinafter referred to as D / A) converter 26. And this D /
The audio signal obtained by the A converter 26 is A
The audio process circuit 3 via the V switch 32.
7 to the speaker 38. In addition, the above PS
The detection signal indicating the scrambled state of the PCM audio signal or the like obtained by the K demodulator 25 is supplied to the system controller 41. Further, the PSK demodulator 25 has the BS tuner unit 23.
The system controller 41 is supplied with a detection signal indicating the presence or absence of a synchronization signal to be included in the PSK-modulated PCM audio signal of the selected channel.

Further, the channel selection output from the BS tuner 23 is supplied to the level detection circuit 27. The level detection circuit 27 is based on the signal level of the channel selection output from the BS tuner 23, for example, in the 8 MHz band.
The reception level of the antenna 21, that is, the antenna level is detected. The detection signal indicating the antenna level obtained by the level detection circuit 27 is supplied to the system controller 41.

The AV switch 32 is composed of a changeover switch 32a for changing over a color television signal supplied to the video process circuit 33 and a changeover switch 32b for changing over an audio signal to be supplied to the audio process circuit 37. It

The changeover switch 32a is connected to the VHF /
One of the color television signals supplied from the UHF tuner unit 12 and the video processing circuit 24 and each color television signal supplied from an external decoder such as a MUSE down converter or JSB decoder (not shown) via the external input terminals 31a and 31b. Is supplied to the video process circuit 33 and is output via the external output terminal 31g. Further, the changeover switch 32b is
Each audio signal from the HF / UHF tuner unit 12 and the D / A converter 26 and each audio signal supplied from an external decoder such as a MUSE down converter, a JSB decoder, and a CS converter (not shown) through the external input terminals 31c to 31f. One of them is supplied to the audio process circuit 37 and the external output terminal 31
Output via h. The external output terminal 31g,
A video tape recorder 50 is connected to 31h, for example.

The video process circuit 33 comprises a so-called video amplification circuit, a color signal reproduction circuit, etc., and a so-called RG for the color television signal selected by the AV switch 32.
The signal is converted into a B signal and supplied to the above-mentioned brown space 36. The video process circuit 33 also detects whether or not the color television signal selected by the AV switch 32 is an NTSC-compliant color television signal and supplies the detection signal to the system controller 41. It is like this.

Under the control of the system controller 41, the image of the selected channel is displayed on the cathode ray tube 36, and the sound of the selected channel is output from the speaker 38. There is. In addition, the display of PinP, the status of the television receiver such as the antenna level, and the operation content such as the recording procedure are displayed as necessary.

Further, this television receiver has the VHF / UHF tuner section 12 and the video process circuit 3 described above.
3. A power supply circuit 40 for individually supplying drive power to the basic circuit block 10 including the audio process circuit 37 and the BS circuit block 20 including the BS tuner unit 23, the video processing circuit 24, the PSK demodulation circuit 25, and the like. The power supply circuit 40 is the system controller 41.
It is controlled by.

The system controller 41 is connected to a receiving circuit 47 for receiving a control signal from a remote controller (hereinafter referred to as remote controller) 30.
Then, the system controller 41 detects the control signal from the operation unit provided on the front surface of the television receiver and the remote controller 30, the scrambled state of the video signal and the PCM audio signal from the PSK demodulator 25, and the level detection. Each unit is controlled based on the reception level from the circuit 27 and the presence / absence of a color television signal from the video process circuit 33.

The system controller 41 is always supplied with + 5V drive power obtained by rectifying the commercial power by the rectifier circuit 42. In addition, the power supply circuit 40
Is supplied with commercial power from a standby switch 43 which is on / off controlled by the system controller 41.

When the user performs a power-on operation with the remote controller 30, the system controller 41 closes the standby switch 43 by receiving the power-on operation signal via the receiving circuit 47. The commercial power is supplied to the power circuit 40, and the power circuit 40
Drive power is supplied from the basic circuit block 10 or B
The S circuit block 20 is put into operation.

Then, in this state, the control signal from the remote controller 30 is received through the receiving circuit 47 to control each section. For example, when the BS7 channel is set, the BS7 channel of satellite broadcasting is selected, the image of this channel is displayed on the cathode ray tube 36, and each unit is controlled so that the sound of this channel is output from the speaker 38. It is supposed to do. If, for example, the BS3 channel is set, BS3
If the scrambled state of the PCM audio signal of the channel is judged, and if it is scrambled (paid broadcast program), the video signal from the BS tuner 23 is once sent to an external JSB decoder and decoded by the JSB decoder. That is, the descrambled color television signal and audio signal are selected by the AV switch 32, the image of this channel is displayed on the cathode ray tube 36, and the sound of this channel is output from the speaker 38. When it is not scrambled (free broadcast program), the color television signal and the audio signal from the video processing circuit 24 are selected by the AV switch 32, and the image of this channel is displayed on the CRT 36. , The audio of this channel To output from the speaker 38, so as to control the respective units.

Specifically, for example, when a user sets a channel number using the remote controller 30 in order to watch a program on a desired channel in terrestrial broadcasting, the system controller 41 causes the system controller 41 to select a channel from the remote controller 30. A control signal indicating a number is received by the receiving circuit 47, and the VHF / UHF tuner unit 12 is controlled so as to select the signal of the set channel.
In order to select the color television signal and audio signal from the VHF / UHF tuner unit 12, the A
The changeover switches 32a and 32b of the V switch 32 are controlled. Then, the selected color television signal is supplied to the video process circuit 33, the audio signal is supplied to the audio process circuit 37, and is also supplied to the video tape recorder 50 via the external output terminals 31g and 31h. To be done.

The video process circuit 33 is connected to the AV
The color television signal from the switch 32 is converted into an RGB signal and supplied to the cathode ray tube 36, and the audio process circuit 37 subjects the audio signal from the AV switch 32 to signal processing such as sound quality adjustment and the speaker 38. Supply to. As a result, the user can watch the program of the desired channel in the terrestrial broadcasting.

Next, for example, if the user sets the BS11 channel using the remote controller 30 in order to watch the program of the desired channel in the BS broadcast,
The system controller 41 receives the control signal indicating the channel number from the remote controller 30 in the receiving circuit 47.
The BS tuner unit 23 is controlled so as to select the signal of the channel which is set via the PSK demodulator 25 out of synchronization and the level detection circuit 27 from the level detection circuit 27. Based on the reception level and the like, it is detected whether the current program is an NTSC-compliant normal broadcast program or a high-definition broadcast program. In the case of a normal broadcast program, the color television signal from the video processing circuit 24 is selected and the D
The AV switch 32 is controlled so as to select the audio signal from the A / A converter 26. On the other hand, in the case of a high-definition broadcast program, the AV switch 32 is controlled so as to select the color television signal and the audio signal from the external MUSE down converter.

That is, the audio signal of the normal broadcast program is converted into the PCM audio signal and the PSK
The modulated and frequency-division-multiplexed video signal, the audio signal of the high-definition broadcast program is converted into a quasi-instantaneous compression differential PCM audio signal, and time-division-multiplexed in the vertical blanking period. Is a good reception state, that is, the reception level detected by the level detection circuit 27 is large,
When the SK demodulator 25 is in synchronization with the PCM audio signal, it is determined to be a normal broadcast program, while when the reception level is high and out of synchronization, it is determined to be a high-definition broadcast program. In the case of a normal broadcast program, the changeover switch 32a of the AV switch 32 is selected so that the color television signal from the video processing circuit 24 is selected and the audio signal from the D / A converter 26 is selected. , 32b are controlled. On the other hand, in the case of a high-definition broadcast program, the changeover switches 32a and 32b of the AV switch 32 are controlled so as to select the color television signal and the audio signal from the MUSE down converter.

Then, the selected color television signal is supplied to the video process circuit 33 and the audio signal is supplied to the audio process circuit 37. As a result, the user can automatically watch the normal broadcast program or the high-definition broadcast program regardless of the type of the BS broadcast program (normal broadcast program / high-definition broadcast program) simply by setting the desired channel.

That is, at present, a high-definition broadcast program is performed on the same channel as a normal broadcast program at different time zones. For example, based on the presence / absence of a keyed AFC pulse, or the synchronization between the reception level and the PCM audio signal. , Determines whether the currently received broadcast program is a normal broadcast program or a high-definition broadcast program, and when the broadcast program is a normal broadcast program, outputs the color television signal from the video processing circuit 24 and the audio from the D / A converter 26. By selecting a signal, and in the case of a high-definition broadcasting program, the color television signal and the audio signal obtained by being decoded by the MUSE down converter 51 connected to the outside are automatically selected to control the user. Regardless of the type of BS broadcast program, By a simple operation to be set to Nozomu of the channel, it is possible to watch the normal broadcast program or a high-definition broadcast program.

Next, for example, when a user sets, for example, BS3 channel using the remote controller 30 in order to watch a program of a desired channel in BS broadcasting, the system controller 41 causes the system controller 41 to display the channel number from the remote controller 30. Is received via the receiving circuit 47, the BS tuner unit 23 is controlled so as to select the signal of the set channel, and the PCM audio signal from the PSK demodulator 25 is scrambled, for example. Based on the state and the like, it is detected whether the current program is an unscrambled free broadcast program or a scrambled pay broadcast program. In the case of a free broadcast program, the AV switch 3 is selected so as to select the color television signal from the video processing circuit 24 and the audio signal from the D / A converter 26.
Control 2 On the other hand, in the case of pay broadcast programs, the above JS
The AV switch 32 is controlled so as to select the color television signal and the audio signal from the B decoder 52.

That is, as described above, the audio signal of the free broadcast program is converted into the PCM audio signal, PSK-modulated and frequency-division-multiplexed with the video signal, and the audio signal of the pay broadcast program is PCM.
After being converted into an audio signal, it is scrambled, PSK-modulated and frequency-division-multiplexed with a video signal. The system controller 41 indicates the scrambled state of the PCM signal detected by the PSK demodulator 25, for example. Based on the 8th bit of the so-called range bit, it is determined whether the program is a pay broadcast program or a free broadcast program. In the case of a free broadcast program, the color television signal from the video processing circuit 24 is selected and the D
The changeover switches 32a and 32b of the AV switch 32 are controlled so as to select the audio signal from the A / A converter 26. On the other hand, in the case of a pay broadcast program, the changeover switches 32a and 32b of the AV switch 32 are controlled so as to select the color television signal and the audio signal from the JSB decoder 52.

The selected color television signal is supplied to the video process circuit 33 and the audio signal is supplied to the audio process circuit 37. As a result, the user can watch the free broadcast program or the pay broadcast program by setting the desired channel regardless of the type of broadcast program (whether or not scrambled).

Further, in this television receiver, when the operation of setting the recording output mode in the receiving state of the BS broadcast is performed by, for example, the remote controller 30, the system controller 41 causes the system controller 41 to set the recording output mode operation signal. Is received via the receiving circuit 47,
The control operation shown in the flowchart of FIG. 2 is performed.

That is, the system controller 41 described above.
Performs a determination process (step 1) as to whether or not the recording output mode setting operation signal has been received. If the determination result is “YES”, that is, if the recording output mode setting operation signal has been received, the process proceeds to step 2. Then, the power supply to the basic circuit block 10 is stopped, and the power supply circuit 40 is controlled so that the driving power is supplied only to the BS circuit block 20. Then, after the 24-hour timer is started in the next step 3, the process proceeds to step 4 to determine whether or not the recording output mode is set. Even if the determination result in step 1 is "NO", that is, if the recording output mode setting operation signal is not received, the process proceeds to step 4 and the determination process of whether or not the recording output mode is set is performed. .. If the determination result in step 4 is "YES", that is, the recording output mode is set, the process proceeds to step 5 to determine whether or not 24 hours have elapsed since the 24 hour timer was started. I do. If the result of the determination in step 5 is "YES", that is, if 24 hours have elapsed after the 24-hour timer was started, the process proceeds to step 6 to open the standby switch 43 and stop all power supply. Then, the power supply circuit 40 is controlled to stop the supply of drive power to the BS circuit block 20. If the determination result in step 4 or step 5 is “NO”, that is, the recording output mode is not set, or if the recording output mode is set and 24 hours have not elapsed, the process proceeds to step 7. After performing other processing, the procedure returns to the determination processing in step 1 above.

As described above, in the television receiver of this embodiment, when the recording output mode is set, the television signal and the audio signal thereof that have received the BS broadcast in the channel and audio mode set at that time. Is output from the external output terminals 31g and 31h and supplied to the video tape recorder 50, drive power is supplied from the power supply circuit 40 only to the BS circuit block 20 for 24 hours, and after 24 hours have elapsed. The supply of drive power to the BS circuit block 20 is automatically and appropriately stopped.

Therefore, in this television receiver, when the recording output mode is set, the television signal and its audio signal which have received the BS broadcast in the channel and audio mode set at that time are output to the external output terminal. Since it is supplied to the videotape recorder 50 from 31g and 31h, it is possible to perform recording by a simple operation as compared with the recording reservation function which requires setting of recording time, channel, and audio mode. When the recording output mode is set, the driving power is supplied from the power supply circuit 40 only to the BS circuit block 20 for 24 hours, and the driving power is supplied to the BS circuit block 20 after 24 hours. Since it is automatically stopped, power consumption is low, and the possibility of a burnout accident of the BS circuit block 20 is low.

In this embodiment, when the recording output mode is set, the power circuit 40 is provided only to the BS circuit block 20 for 24 hours by using a 24-hour timer.
Although the driving power is supplied to the BS circuit block 20 after 24 hours, the driving power to the BS circuit block 20 is stopped after 24 hours have passed. The supply of drive power may be controlled.

[0042]

As is apparent from the above description, in the television receiver according to the present invention, the image display by the display unit for displaying the image based on the tuning output by the built-in satellite broadcast receiving tuner unit is stopped. Then, in the operation mode (recording output mode) for outputting the channel selection output by the satellite broadcast receiving tuner unit to the outside, the power supply control means controls the supply of power to the satellite broadcast receiving tuner unit for a predetermined time. Therefore, it is possible to reduce the power consumption, and it is possible to reduce the risk of the burnout accident of the satellite broadcast receiving tuner unit. Further, in this television receiver, since the channel selection output by the satellite broadcast receiving tuner unit is output to the outside in the recording output mode, the operation is easier than the case where the recording reservation function is provided.

Therefore, according to the present invention, the operation is simple in a television receiver which has a built-in satellite broadcast receiving tuner unit and which causes the display unit to display an image based on the tuning output by the satellite broadcast receiving tuner unit. It is possible to provide a television receiver having a recording output function that consumes less power and is less likely to cause a burning accident.

[Brief description of drawings]

FIG. 1 is a block diagram showing a circuit configuration of a television receiver according to the present invention.

FIG. 2 is a flowchart for explaining the control operation of the recording output mode of the system controller in the television receiver according to the present invention.

[Explanation of symbols]

 10 ... Basic circuit block 11 ... VHF / UHF antenna 12 ... VHF / UHF tuner section 20 ... BS circuit block 21 ... BS antenna 22 ... BS converter 23 ... BS tuner section 25 ... PSK demodulator 27 ... Level detection circuit 30 ... Remote control 32 ... AV switch 33 ... Video process circuit 36 ... CRT 40 ... Power supply circuit 41 ... System controller 43 ... Standby switch 47 ... Reception circuit

Claims (1)

[Claims] 1. A television receiver which has a built-in satellite broadcast receiving tuner unit and displays an image based on a channel selection output by the satellite broadcast receiving tuner unit on a display unit by stopping the image display on the display unit. A television provided with a power supply control means for controlling the supply of power to the satellite broadcast reception tuner unit for a predetermined time in an operation mode in which a channel selection output by the satellite broadcast reception tuner unit is output to the outside. John receiver.