Power Up: DLP-505 363-205-401
Page 4 of 6 Issue 7, March 1997
10. Repair or replace wiring and repeat from Step
6.
11. Replace
337A BATTERY CHARGER
.
12. Connect DMM test leads to
GND
jack and −
48B
jack on
LDU
.
13. Does DMM indicate between −42 and −56 volts?
If
YES,
then proceed to Step
20.
If
NO,
then continue with Step
14.
14. Replace
337A BATTERY CHARGER
with
BATTERY CHARGER
unit
removed previously.
15. Replace
LDU
.
16. Connect DMM test leads to
GND
jack and −
48B
jack on
LDU
.
17. Does DMM indicate between −42 and −56 volts?
If
YES,
then proceed to Step
20.
If
NO,
then continue with Step
18.
18. Replace
LDU
with
LDU
removed previously.
19. Check wiring using SD-7C119-01. Repeat procedure from Step
6
after locating
and correcting trouble.
20. Disconnect DMM test leads and unseat
337A BATTERY CHARGER
.
21. Are other
BATTERY CHARGER
s to be installed?
If
YES,
then continue with Step
22.
If
NO,
then
STOP. YOU HAVE COMPLETED THIS PROCEDURE.
22. Get another
337A BATTERY CHARGER
and inspect it for possible damage.
23. Verify that fuses on
BATTERY CHARGER
are not blown (Figure 1).
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