Lucent Technologies SLC 5 Series Manual page 105

Power Up: DLP-505
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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 CHARGERs 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).
363-205-401
Issue 7, March 1997