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(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.
No.
1
2
3
4
MAJ3364 Series
1
MAJ3182, MAJ3091 Series
1
MAH Series
1
4 - 8
Table 4.1
Surface temperature check point
Measurement point
Center of DE cover
Read channel LSI
VCM/SPM Driver
HDC
4
Figure 4.8 Surface temperature measurement points
C141-E103-02EN
Criteria
55°C
83°C
92°C
85°C
3
2
4
3
2
4
3
2
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