Fujitsu MAH3091MC - Enterprise 9.1 GB Hard Drive, Maintenance Manual

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C141-E103-01EN 1 - 5
(18) Low power consumption
By using highly integrated LSI components, the power consumption of the IDD is very low, and
this enables the unit to be used in wide range of environmental conditions.
(19) Low noise and low vibration
The noise level is low; approx. 4.0 bels for MAH and MAJ series. This makes it ideal for office
use. The IDD has rubber vibration isolators, which minimize the transfer of vibration.
(20) Microcode downloading
The IDD implements the microcode download feature. This feature achieves easy maintainability
of the IDD and function enhancing.
1.2 Hardware Structure
An outer view of the IDD is given in Figures 1.1 to 1.4. The IDD is composed of the disk, head,
spindle motor, hermetically sealed disk enclosure (DE) with actuator and air circulation filter, as
well as read/write pre-amp with the print card unit (PCA) of the controller.
Figure 1.1 MAH series MC outer view