| 摘要 |
A drive motor imparts rotation to the record medium, and a head transport motor transports a transducer head or heads radially of the record medium. A control and drive circuit energises the head transport motor. When the record medium is not loaded in the apparatus, the control and drive circuit holds the supply voltage of the head transport motor to zero or lower than its normal operation voltage for head transportion and power saving. Then, as the record medium is loaded into the apparatus, the control and drive circuit applies the normal operating voltage to the head transport motor preparatory to the commencement of data transfer.
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