FUJITSU MAT3147NC/NP - Manual (Page 56)

4-6 C141-E201
(3) Limitation of bottom-mounting
Use all 4 mounting holes on the bottom face.
(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