Fujitsu MHS2020AT, Product Manual

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Contents
xiv C141-E171-03EN
Illustrations
Figures
Figure 1.1 Negative voltage at +5V when power is turned off ...........................1-6
Figure 1.2 Current fluctuation (Typ.) at +5V when power is turned on .............1-8
Figure 2.1 Disk drive outerview ..........................................................................2-2
Figure 2.2 Configuration of disk media heads.....................................................2-3
Figure 2.3 1 drive system configuration ..............................................................2-4
Figure 2.4 2 drives configuration.........................................................................2-4
Figure 3.1 Dimensions.........................................................................................3-2
Figure 3.2 Orientation..........................................................................................3-3
Figure 3.3 Mounting frame structure...................................................................3-4
Figure 3.4 Location of breather ...........................................................................3-5
Figure 3.5 Surface temperature measurement points ..........................................3-6
Figure 3.6 Service area ........................................................................................3-7
Figure 3.7 Handling cautions...............................................................................3-8
Figure 3.8 Connector locations............................................................................3-9
Figure 3.9 Cable connections ............................................................................3-10
Figure 3.10 Power supply connector pins (CN1).................................................3-11
Figure 3.11 Jumper location.................................................................................3-11
Figure 3.12 Factory default setting ......................................................................3-12
Figure 3.13 Jumper setting of master or slave drive ............................................3-12
Figure 3.14 CSEL setting .....................................................................................3-13
Figure 3.15 Example (1) of Cable Select .............................................................3-13
Figure 3.16 Example (2) of Cable Select .............................................................3-14
Figure 4.1 Head structure ....................................................................................4-3
Figure 4.2 Power Supply Configuration ..............................................................4-5
Figure 4.3 Circuit Configuration .........................................................................4-6
Figure 4.4 Power-on operation sequence.............................................................4-8
Figure 4.5 Read/write circuit block diagram .....................................................4-11
Figure 4.6 Frequency characteristic of programmable filter .............................4-12
Figure 4.7 Block diagram of servo control circuit.............................................4-14
Figure 4.8 Physical sector servo configuration on disk surface ........................4-18
Figure 4.9 Servo frame format...........................................................................4-19