| 摘要 |
PROBLEM TO BE SOLVED: To receive at least the supply of a main power source without regard to the state of a main power switch at the time of executing communication with a center. SOLUTION: A user first turns on a main power source switch 121 and a sub power switch 117. When a broadcasting receiver 1002 is in the middle of telephone communication with a center, a switch 119 turns on parallel to the switch 121 through an auxiliary control circuit 114 from a control circuit 112. Though the user turns off the switch 121 in the middle of telephone communication with the center, supply of an AC power source is continued.
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