| 摘要 |
A selection operation of a designated channel for a broadcast signal received via an antenna is performed, so that the broadcast signal of the designated channel is detected and the detected broadcast signal is output to a monitor via a video IC and the like. When the power of a microcomputer is turned on (power supply is started), the microcomputer causes a tuner to perform a channel-selection operation for the channel that has been selected at the time of most recent turn-off of the power (power supply stop). As a result of the channel-selection operation, if the tuner cannot detect the broadcast signal of the channel, the microcomputer displays an image of that channel (an image where an video image is not shown) on the monitor and thereafter displays an image for notifying a user of a measure to be taken through an OSD circuit.
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