Nortel DMS-100 Series Maintenance Manual page 271

32 Remove the fuses and repeaters associated with CB2 and LCA 0 in the
following order:
a. remove –48V line drawer fuses, 11 through 15
b. remove fuse F01 of the MSP, associated only with CB2
c. unseat NT repeater cards 1 through 4.
Go to step 34.
33 Remove the fuses and repeaters associated with CB4 and LCA 1 in the
following order.
a. remove –48V line drawer fuses, 11 through 15.
b. unseat NT repeater cards, 5 through 7.
34 Obtain a capacitor forming tool.
Note: A capacitor forming tool consists of a 100 watt 120V light bulb
tightened into a socket with pigtail leads.
35 Loosen the slotted nut on the front of the MSP.
36
DANGER
Risk of electrocution
Some terminals in the MSP have electrical potential of
–48V dc to –60V dc. Do not touch any terminals in
the MSP.
Open the MSP panel.
DMS-100 Family OPAC Maintenance Manual XPM12 and up
Alarm clearing procedures 7-35
OPAC talk battery alarm
Critical
(continued)