JPH0775027A - Electronic equipment with built-in information recording and reproducing device - Google Patents

Abstract

PURPOSE:To operate an electronic equipment even at the time of the repair service of an information recording and reproducing device incorporated in the electronic equipment to turn off the power supply of the electronic equipment at the time of opening a door covering an operation port and to secure safety by providing a door detection switch linked with the opening/closing of the door. CONSTITUTION:When a VTR part is taken out of a television receiver for repair, a television part microcomputer 2 judges that the response of an IIC line 8 for communication is not present and setting is performed so as to turn off an AC relay driving transistors 5 and turn off an AC relay 3 when potential from a door opening/closing detection switch 1 is 5V. Further, the setting is performed so as to turn on the AC relay driving transistor 5 and turn on the AC relay 3 when the potential from the door opening/closing detection switch 1 is 0V. Thus, when the VTR part is not present inside the cabinet of the television receiver, the power supply of a television is turned off when the door of a video tape operation port is opened and the safety is secured.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television including an information recording / reproducing apparatus such as a video tape recorder (VTR), an optical disk player (CD player, etc.) or a floppy disk driver (FDD). The present invention relates to safety when an electronic device such as a John receiver is removed from the electronic device for repair.

[0002]

2. Description of the Related Art In recent years, the number of VTR integrated television receivers and monitor televisions (display terminal devices) incorporating a CD player or FDD has been increasing.

Along with this, there is an increasing demand for watching a television receiver (operating an electronic device) even when a built-in information recording / reproducing apparatus such as a VTR is repaired.

[0004]

However, in conventional electronic equipment such as a VTR integrated television receiver, the television receiver cannot be viewed without a VTR in the television receiver for repair. . Even if you can watch it, you can open the door that covers the video tape operation port, and freely put metal objects or hands inside the television receiver. As a result, there is a problem in safety such as short circuit of the circuit board and fear of electric shock.

The present invention solves the above problems by viewing a television receiver even at the time of repair service of an information recording / reproducing apparatus incorporated in an electronic device, for example, even when the VTR is not in the television receiver. It is possible to secure the safety by turning off the power of the television receiver (electronic device) when the door that covers the operation port such as the video tape is opened (the electronic device can be operated). Has an aim.

[0006]

In order to achieve the above-mentioned object, the present invention provides an electronic apparatus incorporating the information recording / reproducing apparatus of the present invention. The electronic apparatus incorporates the information recording / reproducing apparatus and covers the operation port thereof. And a door detection switch interlocked with the opening and closing of the door, and the potential detected by the door detection switch is transmitted to the microcomputer. The microcomputer of the information recording / reproducing apparatus and the microcomputer of the electronic device are IIC. I am sending and receiving signals by this IIC line is not connected,
And when the above door is opened, the microcomputer of the electronic device judges
The power of the electronic device is turned off.

[0007]

According to the present invention, the VT for repair is constructed by the above-mentioned structure.
Even when the information recording / reproducing apparatus such as R is taken out,
Enables viewing (operation of electronic devices) of a television receiver.

Further, when the door for covering the operation opening of the video tape or the like is opened, safety can be secured by surely turning off the power source of the television receiver (electronic device).

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an electronic apparatus incorporating the information recording / reproducing apparatus of the present invention will be described with reference to FIGS.

(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 is a door opening / closing detection switch,
Reference numeral 2 is a television section microcomputer (microcomputer), 3 is an AC relay, 4 is a power plug, 5 is an AC relay drive transistor, 6 is a television section ground, 7 is a VTR section microcomputer, 8 is a television section microcomputer and VT.
An IIC line for communication of the R part microcomputer, and a communication IIC line connector 9 for the VTR part microcomputer. Less than,
The operation of the above component device will be described.

During normal image reception, the television section microcomputer 2
The VTR section microcomputer 7 sends and receives signals via the IIC line 8. Further, the door open / close detection switch 1 is turned on when the front door is opened and is turned off when the front door is closed.

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 potential from the door open / close detection switch 1 is 5v, The AC relay drive transistor 5 is turned off and the AC relay 3 is turned off. Further, when the potential from the door open / close detection switch 1 is 0v, the AC relay drive transistor 5 is turned on.
And set the AC relay 3 to turn on.

With the above construction, when the VTR section is not inside the cabinet of the television receiver, the power of the television is turned off when the door of the video tape operation port is opened, and safety is ensured.

(Embodiment 2) FIG. 2 is a block diagram of a VTR-integrated television receiver according to another embodiment of the present invention. In FIG. 2, reference numeral 10 indicates a VTR portion ground, and 12 indicates a connector for connecting to the VTR portion ground.
The other components are the same as those in the first embodiment. Less than,
The operation will be described.

The door opening / closing detection switch 1 is turned on when the door covering the video tape operation port is opened, and turned off when the door is closed. The line from the door open / close detection switch 1 is connected to the television section microcomputer 2 and at the same time the VTR section ground 1
0 is connected to the connection connector 12 or the like. At the time of repair, if the VTR is removed from the cabinet of the television receiver, the potential from the door open / close detection switch 1 is 5v.
At this time, the AC relay drive transistor 5 is turned off, and A
Set so that C relay 3 is turned off. Furthermore, when the potential from the door open / close detection switch 1 is 0 v, the AC relay drive transistor 5 is turned on and the AC relay 3 is turned on. With the above configuration, when the door is opened in the state where there is no VTR in the television receiver, the power of the television receiver is turned off and safety is secured.

(Embodiment 3) FIG. 3 is a block diagram of a VTR integrated television receiver according to another embodiment of the present invention. In FIG. 3, reference characters Q1 switch transistors, R1 and R2, represent resistors of 22 KΩ. The other components are the same as those in the second embodiment. The operation will be described below.

The door opening / closing switch 1 is turned on when the door covering the video tape operation port is opened, and is turned off when the door is closed. The line from the door open / close detection switch 1 is connected to the ground of the VTR section by a connector or the like and at the same time connected to the resistor R1. Resistor R1 is power relay drive transistor 5
And the microcomputer 2 are connected to the base of a switching transistor Q1.

At this time, if the VTR is removed from the cabinet of the television receiver, when the potential from the door opening / closing detection switch 1 is 5v, Q1 is turned off, the drive transistor 5 is turned off, and the AC relay 3 is turned off. Set it. Furthermore, the potential from the door open / close detection switch 1 is 0v.
At this time, the drive transistor 5 is turned on and the AC relay 3 is turned on.

With the above configuration, the VTR can be installed in the television receiver without affecting the software of the microcomputer as compared with FIGS.
If the door is opened in the absence of light, the power of the television receiver is turned off and safety is secured.

It goes without saying that the information recording / reproducing apparatus incorporated in the television receiver may be an optional apparatus such as an optical disk player or FDD other than the VTR.

On the contrary, the device incorporating the information recording / reproducing device may be any device other than the television receiver.

[0022]

As is apparent from the above embodiments, according to the present invention, in repair service of an information recording / reproducing apparatus such as a VTR, it is possible to view the television receiver even if there is no VTR in the television receiver. You can Also,
When the door that covers the operation port of the video tape is opened without the VTR, the power of the television receiver can be reliably turned off to ensure safety. As a result, the serviceability of the VTR or other built-in television receiver can be improved.

[Brief description of drawings]

FIG. 1 is a block diagram of a television receiver with a built-in VTR according to an embodiment of the present invention.

FIG. 2 is a block diagram of a television receiver with a built-in VTR according to another embodiment of the present invention.

FIG. 3 is a block configuration diagram of a television receiver with a built-in VTR according to another embodiment of the present invention.

[Explanation of symbols]

 1 Door open / close detection switch 2 Television section microcomputer 3 AC relay 4 Power plug 5, Q1 transistor 6 Television section ground 7 VTR section microcomputer 8 Communication IIC line 9 Connection connector 10 VTR section ground 12 Connection connector R, R1, R2 Resistance

Claims (9)

[Claims] 1. An electronic device having a built-in information recording / reproducing device and having a door for covering an operation port of the information recording / reproducing device, the electronic device having a door detection switch interlocked with opening and closing of the door,
The potential detected by the door detection switch is transmitted to the microcomputer, and the microcomputer of the information recording / reproducing apparatus and the microcomputer of the electronic device exchange signals by IIC, and the IIC line is not connected. In addition, when the door is opened, the microcomputer of the electronic device determines and the power of the electronic device is turned off. 2. An electronic device incorporating the information recording / reproducing apparatus according to claim 1, wherein the information recording / reproducing apparatus is one of a VTR, an optical disk player and an FDD. 3. The electronic device incorporating the information recording / reproducing apparatus according to claim 2, wherein the electronic device is a television receiver. 4. An electronic device having a built-in information recording / reproducing device and having a door for covering an operation port of the information recording / reproducing device, the electronic device having a door detection switch interlocked with opening / closing of the door,
One of the switches is connected to the non-charged earth of the electronic device,
The other is connected to the non-charging ground of the information recording / reproducing device and the microcomputer of the electronic device, and when the non-charging ground of the information recording / reproducing device is disconnected and the door is opened,
An electronic device incorporating an information recording / reproducing device, characterized in that the microcomputer of the electronic device determines that the line is not grounded, and the power of the electronic device is turned off. 5. An electronic apparatus incorporating the information recording / reproducing apparatus according to claim 4, wherein the information recording / reproducing apparatus is one of a VTR, an optical disk player and an FDD. 6. The electronic device incorporating the information recording / reproducing apparatus according to claim 5, wherein the electronic device is a television receiver. 7. An electronic device having a built-in information recording / reproducing device and provided with a door for covering an operation port of the information recording / reproducing device, wherein a power relay drive section has an electronic switch and a door detection switch interlocked with opening and closing of the door. One of the switches is connected to a non-charging ground of the electronic device, and the other is connected to a non-charging ground of the information recording / reproducing device and an electronic switch circuit provided to the power supply relay driving unit from the microcomputer of the electronic device. When connected, and when the non-charging ground of the information recording / reproducing device is disconnected and the door is opened, the power of the electronic device is turned off by turning off the line of the power relay drive unit by the electronic switch circuit. An electronic device having a built-in information recording / reproducing device. 8. An electronic device incorporating an information recording / reproducing apparatus according to claim 7, wherein the information recording / reproducing apparatus is one of a VTR, an optical disk player and an FDD. 9. The electronic device incorporating the information recording / reproducing apparatus according to claim 8, wherein the electronic device is a television receiver.