Fujitsu MAJ3364MP Manual/User Guide - Page 61

Read channel LSI, MAJ3182, MAJ3091 Series

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

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C141-E103-02EN
4 - 8
(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
83°C
3
VCM/SPM Driver
92°C
4
HDC
85°C
Figure 4.8
Surface temperature measurement points
1
1
1
3
2
4
4
4
3
2
2
3
MAJ3364 Series
MAJ3182, MAJ3091 Series
MAH Series