TM
9-4931-436-14&P
(6) Carefully fold back retaining
(11) Install row preamp PWB assem-
bar assembly (5). Ensure that cables
blies (7) in connectors in PWB A1.
(12) Install retainer bar assembly
secured to top of retaining bar are not
(5) on PWB AL. Secure with two flat
damaged.
washers (2) and two screws (1). Torque
(7) Remove AGC PWB assembly (6)
from connector on PWB A1.
to 6-8 in.-lb.
(8) Remove row preamp PWB assem-
(13) Install screws on four cable
blies (7) from connectors on PWB A1.
clamps (73) securing cables to PWB A1.
(9) Disconnect Jl, J2, J3, and J4
(14) Replace panel assembly (refer
from PWB A1.
(10) Remove 18 screws (62), 18 flat
ao. I.R. Pass Filter Removal (fig.
washers (2), and cable clamps (70) se-
curing PWB AL to front panel (34).
(1) Remove panel assembly (refer
Carefully remove PWB A1.
(11) Remove top spacer (11) and
(2) Remove two screws (1) and two
bottom spacer (13).
flat washers (2) securing retainer bar
(12) Remove 18 screws (42) securing
assembly (3) to PWB A1 (9).
left side support (LO), right side sup-
(3) Carefully fold retainer bar
port (15), top support (l2), and bottom
assembly back ensuring that cables
support (14).
secured to top retaining bar are not
(13) Remove target window gasket
damaged.
(16) and window backing (17).
(4) Remove column preamp PWB as-
Window backing Replacement (fig.
an.
semblies (4) from connectors on PWB A1.
c-2).
(5) Remove two screws (1) and two
(1) Install window backing (17)
flat washers (2) securing retainer bar
and target window gasket (16) on top
assembly (5) to PWB Al.
of I.R. pass filter (18).
(6) Carefully fold back retaining
(2) Apply sealing compound (MIL-S-
bar assembly (5). Ensure that cables
8802, CLA-) under screw heads prior to
secured to top of retaining bar are not
installation.
damaged.
(3) Apply primer (MIL-S-22473,
(7) Remove AGC PWB assembly (6)
grade T) and locking compound (MIL-S-
from connector on PWB A1.
22473, grade C) to threads of allscrews.
(8) Remove row preamp PWB assem-
(4) Install top support (12),
blies (7) from connectors on PWB AL.
(9) Disconnect Jl, J2, J3, and J4
bottom support (14), right side support
(10), and left side support (1.5). Se-
from PWB A1.
cure with 18 screws (42). Torque to
(LO) Remove 18 screws (62), 18 flat
washers (2), and cable clamps (70) se-
7-9 in.-lb.
(5) Install top spacer (11) and
curing PWB Al to front panel (34).
bottom spacer (13).
Carefully remove PWB A1.
(6) Install PWB A1 (16) on front
(11) Remove top spacer (11) and
panel (34). Secure with 18 flat washers
bottom spacer (13).
(2) and 18 screws (62). Torque to 6-8
(12) Remove 18 screws (42) securing
in.-lb.
left side support (15), right side sup-
(7) Connect J1, J2, J3, and J4 to
port (l0), top support (12), and bottom
PWB A1 (9).
support (14).
(8) Install column preamp PWB as-
(13) Remove target window gasket
semblies (4) in connectors on PWB A1.
(16) and window backing (17). Remove
(9) Install retainer bar assembly
I.R. pass filter (18).
ap. I.R. Pass Filter Replacement
(3) on PWB A1. Secure with two flat
washers (2) and two screws (1). Torque
to 6-8 in.-lb.
(1) Install I.R. pass filter (18),
(10) Install AGC PWB (6) in con-
window backing (17), and window gasket
nector on PWB A1.
(16) on top of diffuser (61).
6-7
