Digital Equipment RW504-ZA, Service Manual

Page: 84 / 220

Table 4–3 (Cont.) Recovery Procedures for Specific Hardware Errors
Error Code
(hex.)
Error Recovery Procedures
51 Excessive tilt of the
carriage/picker assembly
(toward drive) Run test 51—Carriage/Picker Assy
Calibration—verify failure.
52 Excessive cone angle on
picker Run test 51 – Carriage/Picker Assy
Calibration—verify failure.
54 Unable to complete an
interrupted move (at
power-up) Run test 60—FRU Isolation Test—
verify failure. If no error, monitor for
reoccurrence. If test 60 shows an error
code, look up the hardware error code
in this table and follow the recovery
procedures for that error.
55 Unable to find top of
unit Run test 51 – Carriage/Picker Assy
Calibration—verify failure.
EXERCISER TEST ERRORS
56 Need to issue Initialize
Status command No FRUs failed. Run test 10 to initialize
the element status.
57 Invalid test configura-
tion No FRUs failed. Check cartridge
configuration. Check that the cartridge
configuration (number and location) are
correct for the test you are doing.
59 Exerciser unrecovered
error No FRUs failed. Exerciser had an
unrecovered error. Rerun exerciser. If
exerciser fails again, access the recovery
log. Recovery log is available only through
the SCSI interface. Call CSC. Need to use
the DOSDASS2 utility (see Appendix B for
ordering information).
5A Invalid test configura-
tion (elements reserved) No FRUs failed. Can’t do the selected test
on a reserved cartridge. Check cartridge
reservations. Rerun the test.
5B Initialize Element
Status command failed No FRUs failed. The initialization of an
element status failed. Rerun initialization.
If initialization fails again, access the
recovery log. Recovery log is available only
through the SCSI interface. Call CSC.
Need to use the DOSDASS2 utility (see
Appendix B for ordering information).
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4–26 Troubleshooting and Diagnostics