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xiv C141-F037-02EN
3.2.1 Error information indicated with sense data .....................................................................3 - 3
3.2.2 Sense data (4-03-xx), (4-40-xx), (4-44-xx), and (4-C4-xx) ...............................................3 - 4
3.2.3 Sense data (1-1x-xx), (3-1x-xx), and (E-1D-00): Disk read error.....................................3 - 4
3.2.4 Sense data (5-2x-xx), (5-3D-00), (5-90-00), (B-47-xx), (B-49-00), and
(B-4E-00): fibre channel interface error ...........................................................................3 - 4
CHAPTER 4 REMOVAL AND REPLACEMENT PROCEDURES....................................4 - 1
4.1 Spare Parts.......................................................................................................................4 - 1
4.2 Disk Drive Removal.........................................................................................................4 - 3
CHAPTER 5 PRINCIPLE OF OPERATION........................................................................5 - 1
5.1 Outline.............................................................................................................................5 - 1
5.2 Disk Drive Configuration.................................................................................................5 - 1
5.2.1 Disks................................................................................................................................5 - 2
5.2.2 Heads...............................................................................................................................5 - 2
5.2.3 Spindle mechanism..........................................................................................................5 - 3
5.2.4 Actuator...........................................................................................................................5 - 3
5.2.5 Air filters.........................................................................................................................5 - 3
5.3 Circuit Configuration .......................................................................................................5 - 3
5.4 Power-On Sequence .........................................................................................................5 - 6
5.5 Factory-Calibration ..........................................................................................................5 - 7
5.6 Read/Write Circuit...........................................................................................................5 - 7
5.6.1 Head IC............................................................................................................................5 - 7
5.6.2 Write circuit.....................................................................................................................5 - 9
5.6.3 Read circuit......................................................................................................................5 - 9
5.6.4 Write frequency change circuit.........................................................................................5 - 10
5.7 Servo Control...................................................................................................................5 - 12
5.7.1 Servo control circuit.........................................................................................................5 - 12
5.7.2 Servo format ....................................................................................................................5 - 13
5.7.3 Data-side servo data format..............................................................................................5 - 15
5.7.4 Spindle motor control.......................................................................................................5 - 15
5.7.5 Voice coil motor control...................................................................................................5 - 16
GLOSSARY.................................................................................................................................GL - 1
ABBREVIATIONS......................................................................................................................AB - 1