Fujitsu MPA3052AT, MPA3043AT, MPA3026AT, MPA3035AT, MPA3017AT manual Power-on operation sequence

Power on Start

a)

b)

c)

Self-diagnosis 1

•MPU bus test

•Inner register write/read test

•Work RAM write/read test

The spindle motor starts.

Self-diagnosis 2

•Data buffer write/read test

Confirming spindle motor speed

Release heads from actuator lock

d)

e)

f)

Initial on-track and read out of system information

Execute self-calibration

Drive ready state (command waiting state)

End

Figure 4.3 Power-on operation sequence

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