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TM 11-5820-890-30-5
4-28. REPLACEMENT OF AUDIO AMPLIFIER CHASSIS O-RING GASKET. Continued
ITEM
ACTION
REMARKS
REMOVAL Continued
e.
f.
g.
h.
i.
j.
k.
l.
m.
n.
o.
p.
Bottom cover (13)
Connectors P3 (2)
Three screws (7),
flat washers (5), and
cable clamps (8)
Cable harness
connections
Connector J9 (9)
Transistor Q1 (5)
Resistor R1 (10)
Ground lug
Cable harness
Two screws (17 and 18)
and flat washers (19)
Audio amplifier
chassis (16)
O-ring gasket
INSTALLATION
q. O-ring gasket (2)
r.
Two screws (17 and 18)
and flat washers (19)
Remove.
Refer to paragraph 4-40 for
removal procedures.
Disconnect from audio
See figure 4-6.
amplifier CCA (8).
Use cross tip screwdriver. Remove and
See figure 4-5.
retain three screws (7), flat washers (2),
and cable clamps (8) securing audio
amplifier CCA (6) and cables to audio
amplifier chassis (3).
Label cable harness connections at
A3A1E1, A3A1E2, A3A1E5, A3A1E6, A3E5,
and A3E7. Using soldering kit, desolder cable
harness connections at the above points.
Remove and retain.
Refer to paragraph 4-21 for
See figure 4-7.
removal procedures.
Remove and retain.
Refer to paragraph 4-20 for
See figure 4-7.
removal procedures.
Remove and retain.
Refer to paragraph 4-24 for
See figure 4-8.
removal procedures.
Use cross tip screwdriver. Remove
ground lug located next to resistor R1.
Remove cable harness from audio
See figure 4-11.
amplifier chassis by pushing it out
through access hole in back of audio
amplifier chassis.
Use cross tip screwdriver and 5/16-inch
open end wrench. Remove and retain two
screws (17 and 18) and flat washers (19)
securing power supply chassis (15) to audio
amplifier chassis (16).
Remove from amplifier adapter
chassis (15).
Remove and discard. Clean audio
amplifier case channel of all debris.
Apply silicone compound to o-ring gasket.
Install in channel on audio amplifier chassis
case and secure with cyanoacrylate
adhesive.
Use cross tip screwdriver and 5/16-inch
These were removed in
open end wrench. Align audio amplifier
step n.
chassis (16) to power supply chassis (15)
Install and tighten two retained screws
(17 and 18) and flat washers (19).
4-118
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