| 摘要 |
Power supply voltages delivered to processing units of a terminal device, respectively, and a delivery range of the power supply voltages are changed over. There is provided the terminal device comprising a connecter for connecting power supply boards for delivering respective power supply voltages thereto, a plurality of processing units to be operated by the respective power supply voltages delivered from the power supply boards, wherein by connecting the respective power supply boards differing in circuit structure from each other with the connecter, the processing units to which the respective power supply voltages are delivered and levels of the respective power supply voltages as delivered are changed over.
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