TM 11-6625-3081-23
2-33. DC POWER SUPPLY ASSEMBLY 1A4 REPAIR (cont)
2-33
k.
Remove two terminal board cover
nuts (9) and remove terminal
board cover (10).
l.
Remove screws (11) and lockwash-
ers (12) from terminal board
contacts TB1-1, -2, -3, -4, -5,
-6, and -7.
NOTE
The jumper link (14) for power sup-
plies PS1, PS2, and PS4 is connected
differently than PS3.
m.
For replacement of PS1 (5), PS2
(6), or PS4 (8), place jumper
link between terminal board con-
tacts TB1-1 and TB1-2. For
replacement of PS3 (7), place
jumper link on terminal board
contacts TB1-4 and TB1-5.
CAUTION
Ensure correct polarity is observed
when installing capacitor to prevent
damage to electronic station.
NOTE
Refer to wire location chart below as
required when connecting wires.
n.
Install capacitor (13) negative
lead and wire, using lockwasher
(11), and screw (12) on TB1-1.
o.
Install capacitor positive lead
and wire, using lockwasher (11)
and screw (12) on TB1-5.
p.
Install remaining wires, using
lockwashers (11) and screws (12)
on TB1-1, -2, -3, -4, -5, -6, and
-7.
q.
Position terminal board cover
(10) on TB1 and secure with two
nuts (9).
2-216
Wire
No.
16
15
26
13
14
28
27
8
7
20
5
6
22
21
Cable/Terminal Board
Wire Location Chart
To
PS1TB1-1
2
3
4
5
6
7
PS2TB1-1
2
3
4
5
6
7
Wire
No.
12
11
23
9
10
25
24
4
3
17
1
2
19
18
To
PS3TB1-1
2
3
4
5
6
7
PS4TB1-1
2
3
4
5
6
7
r.
Push in dc power supply assembly
and secure with eight screws,
lockwashers, and washers.
END OF TASK
