Lucent Technologies FiberReach DDM-2000 - Page 1466

TAP-114
: Trouble Clearing 363-206-305
Page 4 of 6 Issue 3, June 2000
DDM-2000 F
IBER
R
EACH
W
IDEBAND
S
HELF
29. Is
FAN ALARM
LED lighted on fan assembly?
If
YES
, continue with
Step 30
.
If
NO
, proceed to
Step 37
.
30.
!
WARNING:
To avoid possible damage, do not overextend fan assembly power cable.
Remove fan assembly from bay.
31. Examine fan assembly for anything that will prevent fan from operating
properly.
32. Remove any blockages and reinstall fan assembly and fuses.
33. Is fan assembly
FAN ALARM
LED off?
If
YES
,
STOP. YOU HAVE COMPLETED THIS PROCEDURE
.
If
NO
, continue with
Step 34
.
34. Remove
FAN H
and
FAN L
fuses on corresponding
BFU
.
35. Replace fan assembly with new fan assembly and install fuses.
36. Is fan assembly
FAN ALARM
LED off?
If
YES
,
STOP. YOU HAVE COMPLETED THIS PROCEDURE
.
If
NO
, continue with
Step 37
.
37. Replace one of the
336 RECTIFIER
s.
38. Does alarm clear?
If
YES
,
STOP. YOU HAVE COMPLETED THIS PROCEDURE
.
If
NO
, continue with
Step 39
.
39. Reinstall original
336A RECTIFIER
.
40. Replace second
336A RECTIFIER
.