| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent an input circuit from performing meaningless input by suppressing power supply to a display circuit with the output signal of a monitor circuit only when a report signal from a controller is not sent out to the monitor circuit and no data is inputted from the input circuit. SOLUTION: When no data is inputted from the input circuit 24 for an optionally set time or when an operator does not an information processing part 2, an arithmetic circuit 22 judges that through the monitor circuit 23 and when the operator does not operate a display circuit 11 through the controller 12, a video signal 21X is ceased to suppress the power supply 14 to the display circuit 11 by a control circuit 13. Therefore, when the operator operates the controller 2 so as to adjust the display circuit 11, the monitor circuit 23 has input, so power-saving operation is not entered without operating the input circuit 24, so that the adjustment can be carried on.</p> |
