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4-6 C141-E166
(4) Environmental temperature
Temperature condition at installed in a cabinet is indicated with ambient temperature measured
30 mm from the disk drive. At designing the system cabinet, consider following points.
• Make a suitable air flow so that the DE surface temperature does not exceed 60°C.
• Cool the PCA side especially with air circulation inside the cabinet. Confirm the cooling effect
by measuring temperature of specific ICs and the DE. These measurement results should be
within a criteria listed in Table 4.1.
Table 4.1 Surface temperature check point
No. Measurement point Criteria
1 Center of DE cover 60°C
2 Read channel LSI 88°C
3 VCM/SPM Driver 92°C
4 HDC 91°C
5 MPU 91°C
1
4
5
2
3
Figure 4.6 Surface temperature measurement points
(5) Service clearance area
The service clearance area, or the sides which must allow access to the IDD for installation or
maintenance, is shown in Figure 4.7.