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TM 11-5820-890-30-5
4-61. REPLACEMENT OF AUDIO AMPLIFIER CHASSIS O-RING
Tools:
Cross tip screwdriver
5/16-inch open-end wrench
Flat tip screwdriver
3/4-inch spanner wrench
Torque screwdriver
Spanner attachment
Adjustable wrench
7/8-inch socket
Expendable Supplies:
Silicone compound
Adhesive, cyanoacrylate
Cotton swabs
Alcohol
References:
GASKET.
Socket wrench
Torque wrench
Soldering kit
Solder
Paragraph 3-24 and 3-25 for repair instructions and removal and installation of
threaded screw inserts.
Paragraph 4-52 for removal and installation of 1-Watt audio amplifier CCA.
Paragraph 4-53 for removal and installation of transistor Q1.
Paragraph 4-54 for removal and installation of connector J9.
ITEM
ACTION
REMARKS
REMOVAL
a.
b.
c.
d.
e.
f.
g.
h.
i.
1-Watt audio amplifier
CCA (4)
Screw (1) and
flat washer
Screw (2)
Three screws (3) and
flat washers
Four screws (4 and 5)
Transistor Q1 (3)
Connector J9 (8)
Wires
O-ring gasket
Remove and retain. See figure 4-14.
Refer to paragraph 4-52 for
removal procedures.
Using cross tip screwdriver, remove and
See figure 4-17.
retain screw (1) and flat washer securing
power supply chassis (7) to audio amplifier
chassis (8).
Using a flat tip screwdriver remove and
retain screw (2) securing power supply
chassis (7) to audio amplifier chassis (8).
Using cross tip screwdriver, remove and
retain three screws (3) and flat washers
securing bottom shelf (9) to audio amplifier
chassis (8).
Remove and retain four screws (4 and 5)
securing top shelf (10) to audio
amplifier chassis (8).
Remove and retain,
I
See figure 4-15.
I
Remove and retain.
I
Refer to paragraph 4-53 for
removal procedures.
Refer to paragraph 4-54 for
removal procedures.
Using soldering kit, tag and desolder wires
to allow removal of case.
Inspect, remove, and replace as required.
Clean case channel of all debris.
4-171
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