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STRATA DK FAULT FINDING
SECTION 400-096-500
SEPTEMBER 1992
CHART NO. 5
CO LINE FAULTS (cont.)
Is
the fault
cleared?
NOTES:
1.
2.
Replace
the PCTU.
Remove all
PCBs from the
KSU except:
¥ PCTU
¥ PEKU (PESU) (PDKU)
¥ PCOU
Can
CO1, 2, 3
and/or 4 be
accessed by ports
00 ~ 07?
YES
CO5
Page 14
NO
To
CO4
Page 12
From
Perform the initialization
sequence before proceeding.
Reprogram as required.
Tag the
defective unit(s)
and return for
repair.
NO
END
YES
Reinstall PCBs one at
a time. If troubles
occur, replace
suspected PCB.
Содержание Strata DK 24
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