Lucent Technologies SLC 5 Series - Page 110

Power Up: DLP-506 363-205-401
Page 4 of 6 Issue 7, March 1997
9. Does DMM indicate between 105 and 129 volts?
If
YES,
then proceed to Step
27.
If
NO,
then continue with Step
10.
10. Unseat
336A RECTIFIER
.
11. Connect DMM test leads to
AC
jack and
GND
jack on
LDU
.
12. Does DMM indicate between 105 and 129 volts?
If
YES,
then continue with Step
13.
If
NO,
then proceed to Step
17.
13. Replace
336A RECTIFIER
.
14. Connect DMM test leads to
AC
jack and
GND
jack on
LDU
.
15. Does DMM indicate between 105 and 129 volts?
If
YES,
then proceed to Step
33.
If
NO,
then continue with Step
16.
16. Replace
336A RECTIFIER
with original
336A RECTIFIER
removed previously
and check wiring on power shelf using SD-7C119-01. Repeat procedure from
Step
4
after locating and correcting trouble.
17. Check for presence of 105 to 129 volts AC at rear of power shelf.
18. Is correct voltage present?
If
YES,
then continue with Step
19.
If
NO,
then proceed to Step
24.
19. Replace
LDU
.
20. Connect DMM test leads to
AC
jack and
GND
jack on
LDU
.
21. Does DMM indicate between 105 and 129 volts?
If
YES,
then proceed to Step
4.
If
NO,
then continue with Step
22.
22. Replace
LDU
with original
LDU
removed previously.
23. Check wiring on power shelf using SD-7C119-01. Repeat procedure from Step
4
after trouble is found and corrected.