Fujitsu MHW2160BJ 用户手册
7.3 Troubleshooting Procedure
Table 7.3 System level and field troubleshooting
Check to be made
Recommended work
DC power voltage
level
level
Confirm that the DC power voltage is within
±5% of the standard value.
When measured at +5 V power pins P8 or P9 and GND pins P4-P6, P10,
or P12 of the power supply connector, the +5 DVC must be 4.75 to 5.25
VDC.
or P12 of the power supply connector, the +5 DVC must be 4.75 to 5.25
VDC.
Refer to Sections 3.3 and 5.1.4.
DC power ripple
noise
noise
Check that the maximum ripple at +5 VDC power is less than 100 mV
peak to peak and 200 mV peak to peak respectively.
peak to peak and 200 mV peak to peak respectively.
SATA Interface
Connection
(Including a
Connection of
Power Segment)
Connection
(Including a
Connection of
Power Segment)
Confirm that the SATA interface at the drive is properly connected with
the host receptacle.
the host receptacle.
System cable
Confirm that all cable connections throughout the system correctly
connected.
connected.
System diagnostic
test
test
To further isolate the failure, if it can be done, execute the system level
diagnostic routine described in the host computer manual.
diagnostic routine described in the host computer manual.
Intermittent or
indefinite error
indefinite error
Check the AC voltage level at the power supply section and recheck the
DC voltage level at the disk drive power supply connector.
DC voltage level at the disk drive power supply connector.
If the AC voltage level is abnormal, or if there is a lot of electrical noise,
notify the user.
notify the user.
If the DC voltage level is unstable, replace the power supply section.
If possible, replace the disk drive. If the fault remains, the disk drive is
not the case. For suggestions to isolate the failure further, refer to the
hardware and software manuals provided with the system.
not the case. For suggestions to isolate the failure further, refer to the
hardware and software manuals provided with the system.
C141-E259
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