Lucent Technologies SLC 5 Series - Page 316

363-205-401 RT Turn Up: DLP-510
Issue 7, March 1997 Page 3 of 4
18. Does
FAIL
indicator on
TRU
go off and remain off?
If
YES,
then proceed to Step
20.
If
NO,
then continue with Step
19.
19.
!
CAUTION:
Incorrectly set ADU option switches may result in immediate or future
loss of service or may introduce errors into the digital bitstream.
Replace
ADU
with
ADU
removed previously and check wiring using
SD-7C117-01 or SD-7C117-02. Repeat procedure from Step
2
after locating
and correcting trouble.
20. Is
FAIL
indicator on
BCU
off?
If
YES,
then
STOP. YOU HAVE COMPLETED THIS PROCEDURE.
If
NO,
then continue with Step
21.
21. Replace
BCU
.
22. After approximately 15 seconds, is
FAIL
indicator on
BCU
off?
If
YES,
then
STOP. YOU HAVE COMPLETED THIS PROCEDURE.
If
NO,
then continue with Step
23.
23. Replace
BCU
with
BCU
removed previously.
24. Replace
TRU
in AB shelf and repeat from Step
2.