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C141-E134-01EN4 - 6
(4) Environmental temperature
Temperature condition at installed in a cabinet is indicated with ambient temperature measured 3
cm 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 55°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 55°C
2 Read channel LSI 90°C
3 VCM/SPM Driver 92°C
4 HDC 89°C
5 MPU 88°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 Figures 4.7.