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C141-E110-02EN
4 - 2
4.2.2 Head
Figure 4.1 shows the read/write head structures. The Numerals 0 to 3 indicate read/write heads.
These heads are raised from the disk surface as the spindle motor approaches the rated rotation
speed.
Figure 4.1 Head structure
Spindle Actuator
MPG3102AT
0
MPG3153AT/MPG3204AT
Spindle Actuator
1
0
Spindle Actuator
MPG3307AT/MPG3409AT
3
2
1
0