Lucent Technologies SLC 5 Series - Page 351

363-205-401 RT Turn Up: DLP-519
Issue 7, March 1997 Page 3 of 4
19. Do
MN
and
NE
indicators on both white and blue system
ADU
s and
A/FCU
MN
indicator light?
If
YES,
then proceed to Step
21.
If
NO,
then continue with Step
20.
20. Check wiring using SD-7C118-02. Repeat procedure from Step
19
after locat-
ing and correcting trouble.
21. Replace
CMN
blown fuse in
BFU
with good fuse and verify that
ADU MN
and
NE
and
A/FCU MN
indicators go off.
22. At optics power shelf assembly, replace fuse in
BLUE
or
WHITE
fuse holder
with blown fuse in
BFU1
(if equipping the lower dual bank assembly) or
BFU2
(if equipping the upper dual bank assembly).
23. Do
MJ
and
NE
indicators on both white and blue system
ADU
s and
A/FCU MJ
indicator light?
If
YES,
then proceed to Step
25.
If
NO,
then continue with Step
24.
24. Check wiring using SD-7C118-02. Repeat procedure from Step
23
after locat-
ing and correcting trouble.
25. Replace blown
BLUE
or
WHITE
fuse in
BFU
with good fuse and verify that
ADU MJ
and
NE
and
A/FCU MJ
indicators go off.
26. At optics power shelf assembly, remove either
PCU1
(if equipping the lower
dual bank assembly) or
PCU5
(if equipping the upper dual bank assembly).
27. Do
MJ
and
NE
indicators on both white and blue system
ADU
s and
A/FCU MJ
indicator light?
If
YES,
then proceed to Step
29.
If
NO,
then continue with Step
28.
28. Check wiring using SD-7C118-02. Repeat procedure from Step
27
after locat-
ing and correcting trouble.
29. Replace
PCU
and verify that
ADU MJ
and
NE
and
A/FCU MJ
indicators go off.
30. Have all
PCU
s in slots
PCU1
-
PCU4
or
PCU5
-
PCU8
been tested?
If
YES,
then
STOP. YOU HAVE COMPLETED THIS PROCEDURE
.
If
NO,
then continue with Step
31.