Power Up: DLP-516 363-205-401
Page 2 of 2 Issue 7, March 1997
2. Insert
RSU
into
RSU
slot in power shelf.
3. Get DMM and condition it to measure DC volts.
4. Connect DMM test leads to
GRD
jack and −
48V (1)
jack on
RSU
.
5. Is −42 to −56 volts present?
If
YES,
then proceed to Step
14.
If
NO,
then continue with Step
6.
6. Check −48V (1) feeder and −48V (1) RTN feeder connection from bulk power
plant to power shelf.
7. Have feeders been properly connected?
If
YES,
then proceed to Step
9.
If
NO,
then continue with Step
8.
8. Refer trouble to installation group.
9. Replace
RSU
.
10. Connect DMM test leads to
GRD
jack and −
48V (1)
jack on
RSU
.
11. Is −42 to −56 volts present?
If
YES,
then proceed to Step
14.
If
NO,
then continue with Step
12.
12. Replace
RSU
with
RSU
removed previously.
13. Check wiring on rear of power shelf using SD-7C130-01. Repeat procedure
from Step
4
after locating and correcting trouble.
14. Remove DMM test leads from
RSU
.
15. Repeat the procedure from Step
4
using −
48V (2)
jack on
RSU
and checking
for −48V (2) and −48V (2) RTN feeders and proceed to Step
16.
16. Repeat the procedure from Step
4
using −
48V (3)
jack on
RSU
and checking
for −48V (3) and −48V (3) RTN feeders.
STOP. YOU HAVE COMPLETED THIS PROCEDURE.
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