JP3456046B2 - Television receiver with built-in information recording / reproducing device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information recording / reproducing apparatus such as a video tape recorder (VTR) or an optical disk player (CD player) or a floppy disk driver (FDD). The present invention relates to a safety device in a case where the information recording / reproducing device is detached from the electronic device for repair in an electronic device such as a television receiver incorporating the one device. 2. Description of the Related Art In recent years, the sales volume of VTR-integrated television receivers and monitor televisions (display terminal devices) having a built-in CD player or FDD have been increasing. Accordingly, there is an increasing demand for viewing a television receiver (operating an electronic device) even when repairing a built-in information recording / reproducing apparatus such as a VTR. [0003] However, in a conventional electronic device, for example, a VTR-integrated television receiver or the like, the television receiver is removed when the VTR is removed from the television receiver for repair. Can't watch. Even if you can watch it, open the video tape operation port and freely enter metal objects and hands into the television receiver. As a result, there is a risk of short circuit and electric shock
Had problems with safety. [0004] The present invention solves the above-mentioned problems, and allows a user to watch a television receiver even when repairing an information recording / reproducing apparatus incorporated in an electronic device, for example, even when the VTR is not inside the television receiver. If you forget to attach a bracket that does not open the operation port such as a video tape during repair service, you can safely turn off the television receiver (electronic device). The purpose is to ensure the nature. [0005] In order to solve the above-mentioned problems, a television having a built- in information recording / reproducing apparatus of the present invention is provided.
Receiver is a VTR or optical disk player or floppy disk.
Information of at least one of the PDC drivers
TV receivers with built-in recording and playback devices
The first microcomputer for the built-in device and the
Sends and receives signals to and from a second microcomputer for a vision receiver
Operate the communication IIC line and the built-in device
Operation port provided in the television receiver as described above.
For closing the operation port of the television receiver
Metal fittings, an electric circuit that is opened and closed by the presence or absence of the metal fittings,
Whether the communication IIC line is connected and whether it is the electric circuit
These signals turn off the AC power of the television receiver.
And an AC power supply control circuit for controlling power-off.
Communication between the device and the television receiver.
The IIC line is not connected and the gold
When the electric circuit is not closed by the
The AC power supply control circuit turns off the AC power supply.
Characterized in that the built-in
Information recording / reproducing device from the television receiver
In the protruded state, the operation port is manually
To ensure safety by blocking
In a state where the information recording / reproducing device is taken out,
When the operation port is not closed by the bracket,
Has the effect of ensuring safety by shutting off
Things. According to the present invention, the television receiver can be viewed (operated by an electronic device) even when the information recording / reproducing apparatus such as a VTR is taken out for repair service.
Enable. Further, when a metal fitting for preventing the operation port such as a video tape from being opened is not connected, safety can be ensured by surely turning off the power of the television receiver (electronic device). DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An electronic apparatus incorporating an information recording / reproducing apparatus according to the present invention will be described below with reference to FIGS. 1 to 3 using an example of a VTR integrated television receiver. (Embodiment 1) FIG. 1 is a block diagram of a VTR-integrated television receiver according to an embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a bracket for preventing the operation port such as a video tape from being opened, 2 denotes a television microcomputer (microcomputer), 3 denotes an AC relay, 4 denotes a power plug, 5 denotes an AC relay driving transistor, 6 Is a television ground, 7 is a VTR microcomputer, 8 is a communication IIC line between the television microcomputer and the VTR microcomputer, and 9 is a communication IIC line connector of the VTR microcomputer. Hereinafter, the operation of the above-mentioned constituent device will be described. During normal image reception, the microcomputer 2 of the television unit and the microcomputer 7 of the VTR exchange signals via the IIC line 8.
The metal fitting 1 is connected (attached) at the time of repair.
Is transmitted to the microcomputer of the television section, and 5 V is transmitted if not connected. When the VTR section is taken out of the television receiver for repair, the television section microcomputer 2 determines that there is no response from the communication IIC line 8, and when the metal fitting 1 is not connected (5v),
Turn off the relay drive transistor 5 and set the AC relay 3
Is set to OFF. Further, when the metal fitting 1 is connected (0
v), turn on the AC relay drive transistor 5, and
It is set so that the relay 3 is turned on. With the above configuration, when the VTR unit is not in the cabinet of the television receiver, the video tape operation port is not opened, and the power supply of the television is turned off even if the fitting 1 is forgotten.
F, safety is ensured. (Embodiment 2) FIG. 2 is a block diagram showing a VTR-integrated television receiver according to another embodiment of the present invention. In FIG. 2, reference numeral 10 denotes a VTR unit ground, and 12 denotes a connector for connection to the VTR ground.
The other configuration codes are the same as in the first embodiment. Less than,
The operation will be described. When the metal fitting 1 is connected (attached) at the time of repair, a potential of 0V is transmitted to the television microcomputer, and if not connected, it is in an open state. The line from the bracket 1 is connected to the television unit microcomputer 2 and at the same time is connected to the VTR unit ground 10 by the connector 12. At the time of repair, if the VTR is removed from the cabinet of the television receiver, the AC relay drive transistor 5 is turned off when the potential from the bracket 1 is 5 V.
The AC relay 3 is set to be turned off. Further, when the potential from the metal fitting 1 is 0 V, it is set so that the AC relay driving transistor 5 is turned on and the AC relay 3 is turned on. With the above configuration, when the VTR section is not in the cabinet of the television receiver, the video tape operation port is not opened, and the power supply of the television is turned off even if the fitting 1 is forgotten.
F, safety is ensured. (Embodiment 3) FIG. 3 is a block diagram showing a VTR-integrated television receiver according to another embodiment of the present invention. In FIG. 3, reference numeral 13 denotes an AC relay control transistor. The other configuration codes are the same as in the first and second embodiments. Hereinafter, the operation will be described. When the metal fitting 1 is connected (attached) at the time of repair, this line is short-circuited to ground by the metal fitting, and is open when not connected. The line from the bracket 1 is connected to the base of the AC relay control transistor 13 and at the same time is connected to the VTR section ground 10 by the connection connector 12. When repairing, remove the VTR from the inside of the television receiver cabinet,
When the potential from the metal fitting 1 is 5 V (no metal fitting), the AC relay control transistor 13 is turned off, the AC relay driving transistor 5 is turned off, and the AC relay 3 is turned off. Further, when the potential from the bracket 1 is 0 V (there is a bracket), the AC relay control transistor 13 is
N turns on the AC relay drive transistor 5
The AC relay 3 is turned on. With the above configuration, when the VTR section is not in the cabinet of the television receiver, the video tape operation port is not opened, and the power supply of the television is turned off even if the fitting 1 is forgotten.
F, safety is ensured. Integrity can be provided, and the serviceability of the television receiver with a built-in video can be improved. It goes without saying that the information recording / reproducing device incorporated in the television receiver may be any device such as an optical disk player or FDD other than the VTR. Conversely, the device incorporating the information recording / reproducing device may be any device other than the television receiver. As is clear from the above embodiments, according to the present invention, when repairing an information recording / reproducing apparatus such as a VTR, the television receiver can be used even if there is no VTR in the television receiver. You can watch. Also,
If the user forgets to connect a metal fitting to prevent the operation port of the video tape from being opened in the absence of the VTR, safety can be ensured by surely turning off the power of the television receiver. As a result, the serviceability of a built-in television receiver such as a VTR can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a television receiver with a built-in VTR according to one embodiment of the present invention. FIG. 2 is a block configuration of a television receiver with a built-in VTR according to another embodiment of the present invention. FIG. 3 is a block diagram of a television receiver with a built-in VTR according to another embodiment of the present invention. [Description of References] 1 Hardware 2 Television unit microcomputer 3 AC relay 4 Power plug 5 AC relay drive transistor 6 Television Ground 7 VTR microcomputer 8 Communication IIC line 9 Connector 10 VTR ground 12 Connector 13 AC relay control transistor

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G11B 33/00 H04N 5/64 531

Claims (1)

(57) [Claims] [Claim 1] VTR or optical disk player or flow
Information of at least one of the
TV receiver with built-in information recording / reproducing device
Te, the first microcomputer and the tele for the built-in device
A communication IIC line for exchanging signals with a second microcomputer for a vision receiver, and the built-in device can be operated.
Operation port provided in the television receiver as described above.
For closing the operation port of the television receiver
Metal fittings, an electric circuit that is opened and closed by the presence or absence of the metal fittings,
Whether the communication IIC line is connected and whether it is the electric circuit
These signals turn off the AC power of the television receiver.
And an AC power supply control circuit for controlling power-off.
The in the state where communication IIC line is not connected between the device and the television receiver, and the gold
When the electric circuit is not closed by the
The information recording / reproducing apparatus is characterized in that the AC power supply is controlled to be turned off by an AC power supply control circuit.
Television receiver.