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C141-F029-01EN 1 - 7
1.1.5 Tools and test equipment
At the field maintenance level, only ordinary hand tools are required for troubleshooting and
repairing the disk drive. Special tools and test equipment is not required.
Factory level tools and test equipment are beyond the scope of this manual.
1.1.6 Self-diagnostics
The disk drive has the following self-diagnostics. These self-diagnostics allow normal basic
operation of an isolated disk drive can be checked.
• Initial self-diagnostics
• Offline self-diagnostics (EXECUTE DRIVE DIAGNOSTIC [DIAGNOSTIC] command)
1.1.7 Test
The disk drive test can be divided into the following three levels.
• Operating test (See Subsection 1.2.1 on Operating test.)
• Diagnostic test (See Subsection 1.2.2 on Diagnostic test.)
Figure 1.3 shows the relationship between the test level and troubleshooting.
Tables 1.1 and 1.2 show the check contents.