IBM 6151 Maintenance And Service Manual page 97

51x
Fixed-Disk Drive Type E310
Additional Tests: None
Removal Procedure: If the drive is in the system unit, see
Fixed·Disk Drive Removal in Section 4,
otherwise see the service information for
the unit containing the drive.
Repair Checkout: Run the Fixed·Disk Drive and Media
Checkout.
52x
IBM AT Fixed-Disk and Diskette Drive Adapter
Additional Tests: None
Removal Procedure: See Adapter Removal in Section 4.
Repair Checkout: If your SRN also contains an SRA number
of 98A, each fixed disk attached to this
adapter must be formatted again.
Note: This destroys all data recorded on
the fixed disk.
To format the fixed disk, use the Format
Fixed-Disk utility. If needed, see Section 2.
Run the System Checkout.
(6/88) Problem Isolation Charts 3-0020-19