TM 11-6625-3081-23
2-31. PROGRAMMABLE POWER SUPPLY ASSEMBLY 1A3 REPAIR (cont)
2-31
a.
On front panel of programmable
power supply assembly (1), remove
eight screws (6), lockwashers
(7), and washers (8). Pull out
programmable power supply
assembly.
b.
On rear panel of failed power
supply, do the following steps.
(1) Disconnect 115 vac
connector (9).
(2) Loosen two connector screws
(10) and disconnect
connector (11).
(3) Remove two terminal board
cover screws (12) and
cover (13).
NOTE
Refer to cable/terminal board wire
connection chart for wire location.
Cable/Terminal Board
Wire Connection Chart
From
1W6 E1
E1
E2
Ground
E3
E3
E4
E5
E5
E6
Ground
E7
E7
E8
To
From
PS4TB1 + out
PS4TB1 + out
PS4TB1 + S
PS4TB1
GND
PS4TB1 - out
PS4TB1 - out
PS4TB1 - S
PS3TB1 + out
PS3TB1 + out
PS3TB1 + S
PS3TB1
GND
PS3TB1 - out
PS3TB1 - out
PS3TB1 - S
1W6 E9
E9
E1O
Ground
E11
E11
E12
E13
E13
E14
Ground
E15
E15
E16
To
PS2TB1 + out
PS2TB1 + out
PS2TB1 + S
PS2TB1 GND
PS2TB1 - out
PS2TB1 - out
PS2TB1 - S
PS1TB1 + out
PS1TB1 + out
PS1TB1 + S
PS1TB1
GND
PS1TB1 - out
PS1B1 - out
PS1TB1 - S
(4) On terminal board (14), tag
wires and remove screw (15),
washer (16), and wires (17)
from each terminal.
(5) Install terminal board cover
(13) using two screws (12).
2-205
