TM11-7025-229-12
(5)
If all items above appear to be as required, the disk unit is defective. Replace it with an operational
spare unit (para 4-14).
g. SEL Indicator (UNIT SELECT) Won't Light. If the SEL indicator won't light, even after repeated tries by
the host computer, the problem is beyond the scope of this manual. Replace the defective disk unit with an operational
spare and forward the defective unit to the next higher level of maintenance (para 4-14).
h. RDY Indicator (UNIT SELECT) Won't Light. In the event that the RDY indicator won't light, even though
the disk unit has been successfully selected by the host computer, the problem is beyond the scope of this manual.
Replace the defective disk unit with an operational spare and forward the defective unit to the next higher level of
maintenance (para 4-14).
i.
System Readiness Test Won't Run. This problem is beyond the scope of this manual. Replace the
defective disk unit with an operational spare and forward the defective unit to the next higher level of maintenance (para
j.
PASS Indicator (SYS TEST) Won't Light. In the event that the PASS indicator won't light, and host
computer has verified that the system readiness test was successfully completed, the problem is beyond the scope of this
manual. Replace the defective disk unit with an operational spare and forward the defective unit to the next higher level
of maintenance (para 4-14).
k. FAIL Indicator (SYS TEST) Won't Light. In the event that the FAIL indicator won't light, and the host
computer has verified that the system test was unsuccessful, the problem is beyond the scope of this manual. Replace
the defective disk unit with an operational spare unit and forward the defective unit to the next higher level of
maintenance (para 4-14.).
I.
Defective ELAPSED TIME Indicator. A daily visual inspection of the ELAPSED TIME indicator will detect
that the meter is not functioning properly. When it is noticed that the meter is not operating properly, replace the
defective disk unit with an operational spare and forward the defective unit to the next higher level of maintenance (para
4-7
