Diagnostics and Maintenance
(1)Indicating revision number at factory shipment
When the disk drive is shipped from the factory, the revision number is indicated by deleting numbers in the corresponding letter line up to the corresponding number with = (see Figure 6.2).
(2)Changing revision number in the field
To change the revision number because parts are replaced or other modification is applied in the field, the new level is indicated by enclosing the corresponding number in the corresponding letter line with bold line (see Figure 6.2).
When the revision number is changed after the drive is shipped from the factory, Fujitsu issues "Engineering Change Request/Notice" in which the new revision number is indicated. When the user changes the revision number, the user should update the revision label as described in item (2) after applying the modification.
At shipment | Rev. A2 |
Revising at field | Rev. A3 |
Figure 6.2 Indicating revision numbers
6.2.5Tools and test equipment
Disk drive troubleshooting and repair in the field require only standard hand tools. No special tools or test equipment are required.
This manual does not describe the