363-205-401
Power Up: DLP-508
Issue 7, March 1997
Page 3 of 4
21. Is FAIL indicator on RINGING GENERATOR off?
If YES, then proceed to Step 23.
If NO, then continue with Step 22.
22. Replace RINGING GENERATOR and repeat from Step 3.
23. Disconnect DMM test leads.
24. Have both RINGING GENERATORs been tested?
If YES, then proceed to Step 27.
If NO, then continue with Step 25.
25. Unseat main RINGING GENERATOR.
26. Insert remaining RINGING GENERATOR into spare (vacant) RING GEN slot
in power shelf and repeat from Step 3.
27. Reseat main RINGING GENERATOR.
28.
NOTE:
The TEST PROT RG pushbutton on LDU must be pressed while viewing
indicators during this procedure in order to obtain correct results.
Press and hold down TEST PROT RG pushbutton on LDU.
29. Is FAIL indicator on protection (right) RINGING GENERATOR off and FAIL
indicator on main (left) RINGING GENERATOR lighted?
If YES, then proceed to Step 33.
If NO, then continue with Step 30.
30. Release TEST PROT RG pushbutton on LDU.
31. Replace protection RINGING GENERATOR.
32. Unseat main RINGING GENERATOR and repeat from Step 3.
33. Release TEST PROT RG pushbutton.
STOP. YOU HAVE COMPLETED THIS PROCEDURE.