Fujitsu MPF3204AH Product Manual page 11

3.4.2 Cable connector specifications..........................................................................................3 - 9
3.4.3 Device connection ............................................................................................................3 - 9
3.4.4 Power supply connector (CN1) .........................................................................................3 - 10
3.4.5 System configuration for Ultra DMA................................................................................3 - 10
3.5 Jumper Settings................................................................................................................3 - 13
3.5.1 Location of setting jumpers ..............................................................................................3 - 13
3.5.2 Factory default setting ......................................................................................................3 - 14
3.5.3 Jumper configuration .......................................................................................................3 - 14
CHAPTER 4 THEORY OF DEVICE OPERATION ............................................................4 - 1
4.1 Outline.............................................................................................................................4 - 1
4.2 Subassemblies ..................................................................................................................4 - 1
4.2.1 Disk .................................................................................................................................4 - 1
4.2.2 Head ................................................................................................................................4 - 2
4.2.3 Spindle.............................................................................................................................4 - 2
4.2.4 Actuator ...........................................................................................................................4 - 2
4.2.5 Air filter...........................................................................................................................4 - 3
4.3 Circuit Configuration .......................................................................................................4 - 4
4.4 Power-on Sequence ..........................................................................................................4 - 6
4.5 Self-calibration.................................................................................................................4 - 8
4.5.1 Self-calibration contents...................................................................................................4 - 8
4.5.2 Execution timing of self-calibration..................................................................................4 - 9
4.5.3 Command processing during self-calibration....................................................................4 - 9
4.6 Read/write Circuit .......................................................................................................... ..4 - 10
4.6.1 Read/write preamplifier (PreAMP)...................................................................................4 - 10
4.6.2 Write circuit.....................................................................................................................4 - 10
4.6.3 Read circuit......................................................................................................................4 - 11
4.6.4 Synthesizer circuit............................................................................................................4 - 12
4.7 Servo Control...................................................................................................................4 - 12
4.7.1 Servo control circuit .........................................................................................................4 - 13
4.7.2 Data-surface servo format.................................................................................................4 - 16
4.7.3 Servo frame format ..........................................................................................................4 - 16
4.7.4 Actuator motor control .....................................................................................................4 - 18
4.7.5 Spindle motor control.......................................................................................................4 - 19
x C141-E106-01EN