Signal recording/reproducing apparatus

摘要

The power consumption in the standby state of a signal recording/reproducing apparatus is improved without injuring the convenienceness for users. When a user issues an instruction to stop the operation of a power source, the operation of a switching power source circuit (3) is stopped and the necessary units are supplied with the electric power by a battery (21), and also whenever a fixed time period has elapsed or it has become a fixed time, the switching power source is activated to charge the battery with the electric charges in order to make unnecessary the work of exchanging the battery. In addition, a time zone in which a user does not really use the apparatus, a time zone in which there is the possibility that a user uses the apparatus, and a time zone in which a user uses the apparatus are clearly or automatically detected in a system controller (7) so that the generation and supply of the electric power signals which are optimal for the respective states are carried out. As a result, the power consumption and the convenienceness in the two standby states, i.e., the time zone in which a user does not really use the apparatus, and the time zone in which there is the possibility that a user uses the apparatus are made compatible with each other. <IMAGE>