Rcvr Removal And Replacement - Alcatel MDR-8000 User Manual

RCVR REMOVAL AND REPLACEMENT

5.20
Use this procedure to remove and replace UD-36( ) RCVR.
This is an out-of-service procedure when on a nonstandby
(unprotected) system. On a hot-standby, space diversity, or fre-
quency diversity system, switch traffic on the channel under
test to protect. Use front panel OVRD controls on AE-37( ) Con-
troller to switch and lock opposite side RCVR (opposite side
from failed RCVR) on line.
a
On RCVR module, disconnect cable from RF In connector.
b
Remove RCVR module from card cage.
c
On RCVR module being replaced, remove RCVR Crystal Oscillator Subboard. See
Figure 5 - 24. Retain for installation on replacement module.
d
On RCVR module being replaced, remove RCVR Capacity Key. See Figure 5 - 25.
Retain for installation on replacement module.
e
On replacement RCVR module, install RCVR Crystal Oscillator Subboard. See
Figure 5 - 24.
f
On replacement RCVR module, install RCVR Capacity Key. See Figure 5 - 25.
g
Install replacement RCVR module in card cage.
h
Is RCVR equipped with front panel Freq Cont.?
If yes, go to step i
If no, go to step j .
i
Perform RCV Crystal Oscillator Frequency checks and adjustment procedure. Refer
to Para. 5.21.
j
Stop. This procedure is complete.
CAUTION
Possibility of
Service
Interruption
5-61