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4 - 6
Power on
Start
Self-diagnosis 1
a)
• MPU bus test
• Inner register
write/read test
• Work RAM write/read
test
The spindle motor starts.
b)
Self-diagnosis 2
• Data buffer write/read
test
Confirming spindle motor
c)
speed
Release heads from
actuator lock
d)
Initial on-track and read
out of system information
e)
Execute self-calibration
f)
Drive ready state
(command waiting state)
End
Figure 4.3
Power-on operation sequence
C141-E110-02EN
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