Toshiba STRATA DK24 Manual page 586

STRATA DK FAULT FINDING
SECTION 200-096-500
FEBRUARY 1991
CHART NO. 4
KSU FAULTS
Fault Classification
Go to
Page 5 to
classify fault.
at the electronic
Remove all PCBs
from the KSU
except: PEKU, PCTU,
PESU, or PDKU.
accessed by ports
PESU, or PDKU,
/ ~~
intercom be
\
l
Reinstall all PCBs, I
one at a time.
Tag the
l
If trouble occurs,
--)
defective unit(s) ar Id
replace suspected
return for repair.
PCB.
(r-i
END
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