| 摘要 |
PROBLEM TO BE SOLVED: To eliminate the power consumption when electronic equipment is in a stand-by state by making a 2nd relay contact so as to be interlocked with a 1st relay contact and inputting a power-source synchronizing signal to a control circuit when a power-ON switch is not pressed. SOLUTION: A power-ON switch 261 is equipped with a normally open terminal NO which is connected in parallel to the 1st relay contact 25b of a relay controlled and closed when depressed by the control circuit 20, a normally closed terminal NC which is opened when depressed, and a common terminal COM, and on the side of the normally closed terminal NC of the power-ON switch 261, a power-source synchronizing signal detecting circuit 29 is provided through a 2nd relay contact 25c controlled so as to be interlocked with the 1st relay contact 25b. The power-ON synchronizing signal detecting circuit 29 closes the 2nd relay contact 25c so as to be interlocked with the 1st relay contact 25b and also inputs a power-source synchronizing signal to the control circuit 20 when the power-ON switch 261 is not pressed. |
