Fujitsu MPD3173AT Product Manual - Page 53
Power-on operation sequence
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Power on Start a) Self-diagnosis 1 • 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 c) Confirming spindle motor 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 4 - 8 C141-E069-02EN
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C141-E069-02EN
4 - 8
c)
b)
a)
Release heads from
actuator lock
Confirming spindle motor
speed
Self-diagnosis 2
•
Data buffer write/read
test
The spindle motor starts.
Self-diagnosis 1
•
MPU bus test
•
Inner register
write/read test
•
Work RAM write/read
test
Start
Power on
Drive ready state
(command waiting state)
Execute self-calibration
Initial on-track and read
out of system information
f)
e)
d)
End
Figure 4.3
Power-on operation sequence