C141-E103-01EN
xiii
6.3.2
Operation test ........................................................................................................................6-12
6.3.3
Diagnostic test .......................................................................................................................6-12
6.4
Troubleshooting Procedures..................................................................................................6-13
6.4.1
Outline of troubleshooting procedures ..................................................................................6-13
6.4.2
Troubleshooting with disk drive replacement in the field......................................................6-13
6.4.3
Troubleshooting at the repair site ..........................................................................................6-15
6.4.4
Troubleshooting with parts replacement in the factory..........................................................6-16
6.4.5
Finding possibly faulty parts..................................................................................................6-16
CHAPTER 7
ERROR ANALYSIS .............................................................................................7-1
7.1
Error Analysis Information Collection ..................................................................................7-1
7.1.1
Sense data ..............................................................................................................................7-1
7.1.2
Sense key, sense code, and subsense code.............................................................................7-1
7.2
Sense Data Analysis ..............................................................................................................7-3
7.2.1
Error information indicated with sense data ..........................................................................7-3
7.2.2
Sense data (4-03-xx), (4-40-xx), (4-44-xx), and (4-C4-xx) ...................................................7-4
7.2.3
Sense data (1-1x-xx), (3-1x-xx) and (E-1D-00): Disk read error .........................................7-4
7.2.4
Sense data (5-2x-xx), (5-3D-00), (5-90-00), (B-47-xx), (B-49-00), (B-4D-xx) and
(B-4E-00): SCSI interface error ...........................................................................................7-4
CHAPTER 8
PRINCIPLE OF OPERATION ...........................................................................8-1
8.1
Outline ...................................................................................................................................8-1
8.2
Disk Drive Configuration ......................................................................................................8-1
8.2.1
Disks......................................................................................................................................8-2
8.2.2
Heads.....................................................................................................................................8-2
8.2.3
Spindle mechanism................................................................................................................8-2
8.2.4
Actuator .................................................................................................................................8-2
8.2.5
Air filters ...............................................................................................................................8-2
8.3
Circuit Configuration.............................................................................................................8-3
8.4
Power-On Sequence ..............................................................................................................8-5
8.5
Factory-Calibration................................................................................................................8-6
8.6
Read/Write Circuit ................................................................................................................8-6
8.6.1
Head IC .................................................................................................................................8-6
8.6.2
Write circuit...........................................................................................................................8-7
8.6.3
Read circuit ...........................................................................................................................8-8
8.7
Servo Control ........................................................................................................................8-10
8.7.1
Servo control circuit ..............................................................................................................8-10
Содержание MAH3091MC - Enterprise 9.1 GB Hard Drive
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Страница 85: ...C141 E103 01EN 5 4 3 Connecting more than one IDD multi host Figure 5 1 SCSI bus connections 2 of 2 ...
Страница 95: ...C141 E103 01EN 5 14 Motor starts when power is turned on Figure 5 4 Checking the SCSI connection A 60 ...
Страница 127: ...8 4 C141 E103 01EN Servo Demodulator Buffer DRAM 1 Mbit 32 4 MByte Read Channel Figure 8 1 Circuit configuration ...
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Страница 145: ...C141 E103 01EN B 1 APPENDIX B SETTING TERMINALS B 1 Setting Terminals This appendix describes setting terminals ...
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