Fujitsu MJA2500BH Maintenance Manual - Page 63
Power-on, Power-on operation sequence
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4.4 Power-on Sequence Power-on Start a) SATA I/F Initialization b) Self-diagnosis 1 - MPU bus test - Internal register write/read test - Work RAM write/read test The spindle motor starts. c) Self-diagnosis 2 - Data buffer write/read test d) Confirming spindle motor speed Load the head assembly e) Initial on-track and read out of system information f) Drive ready state (command waiting state) g) Execute self-calibration End Figure 4.3 Power-on operation sequence C141-E293 4-7
4.4
Power-on Sequence
C141-E293
4-7
Start
Power-on
a)
Self-diagnosis 1
- MPU bus test
- Internal register
write/read test
- Work RAM write/read
test
The spindle motor starts.
Self-diagnosis 2
- Data buffer write/read
test
b)
Confirming spindle motor
speed
c)
Load the head assembly
Drive ready state
(command waiting state)
g)
Execute self-calibration
f)
Initial on-track and read
out of system information
e)
End
SATA I/F Initialization
d)
Figure 4.3
Power-on operation sequence