363-205-401 Power Up: DLP-506
Issue 7, March 1997 Page 5 of 6
24. Operate AC power circuit breaker off and then back on.
25. Check for presence of 105 to 129 volts AC at rear of power shelf.
26. Is correct voltage present?
If
YES,
then proceed to Step
4.
If
NO,
then
refer trouble to installation group.
27. Replace
336A RECTIFIER
.
28. Condition DMM to measure DC volts.
29. Connect DMM test leads to −
48B
jack and
GND
jack on
LDU
.
30. Does DMM indicate between −42 and −56 volts?
If
YES,
then proceed to Step
33.
If
NO,
then continue with Step
31.
31. Replace
336A RECTIFIER
with
336A RECTIFIER
removed previously.
32. Check wiring on rear of power shelf using SD-7C119-01. Repeat procedure
from Step
5
after trouble is found and corrected.
33. Is another
336A RECTIFIER
to be installed?
If
YES,
then continue with Step
34.
If
NO,
then proceed to Step
36.
34. Unseat
336A RECTIFIER
(s) installed previously.
35. Get another
336A RECTIFIER
and repeat from Step
2.
36. Remove DMM test leads and reseat all
336A RECTIFIER
s.
STOP. YOU HAVE COMPLETED THIS PROCEDURE.
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