Fujitsu MBA3147NC 用户手册

 

This section describes the operation check procedures after power is turned on.  Since the initial 
operation of the HDD depends on the setting of the motor start mode, check the initial operation 
by either of the following procedures. 

 
(1) 

Initial operation in the case of setting so that motor starts at powering-on 

a)  When power is turned on, the LED blinks an instant and the HDD executes initial self-

diagnosis. 

 

b)  If an error is detected in the initial self-diagnosis, the LED blinks periodically. 

 

The spindle motor may or may not start rotating in this stage. 

 

c)  When the HDD status is idle, the LED remains off  (when the initiator accesses the HDD via 

the SCSI bus, the LED lights). 

 
 
(2) 

Initial operation in the case of setting so that motor starts with START/STOP command 

a)  When power is turned on, the LED blinks an instant and the HDD executes initial self-

diagnosis. 

 

b)  If an error is detected in the initial self-diagnosis, the LED blinks. 
 
c)  The spindle motor does not start rotating until the START/STOP UNIT command for the start 

is issued.  The initiator needs to issue the START/STOP UNIT command to start the spindle 
motor by the procedure in Subsection 5.6.2. 

 

d)  The disk drive enters the READY status in 60 seconds after the START/STOP UNIT 

command is issued.  At this time, the HDD reads "system information" from the system space 
on the disk. 

 

e)  The LED blinks during command execution. 

 
 
(3) 

Check items at illegal operation 

a)  Check that cables are mounted correctly. 
 
b)  Check that power and voltages are supplied correctly (measure them with the HDD power 

connection position). 

 
c)  Check the setting of each setting terminal.  Note that the initial operation depends on the 

setting of the motor start mode and LED display requirements. 

 

C141-E270 

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