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TM 11-5820-890-30-5
4-53. REPLACEMENT
Tools:
OF TRANSISTOR Q1.
Torque screwdriver
Flat tip screwdriver
Cross tip screwdriver
Soldering kit
Expendable Supplies:
Solder
Alcohol
Cotton swabs
References:
Paragraph 4-52 for removal and installation of access cover.
ITEM
ACTION
REMARKS
REMOVAL
a.
b.
Mounting adapter
Set on work surface with right side
toward you.
Access cover (1)
Remove and retain access cover (1).
c.
d.
Two screws (1), lock-
Using cross tip screwdriver, remove and
washers, flat washers,
retain two screws (1), Iockwashers, flat
and insulating washers
washers, insulating washers, and terminal
lug securing transistor Q1 (3) to audio
amplifier chassis (2).
Transistor Q1 (3)
Remove and discard insulation sleeving
on transistor leads. Using soldering kit,
tag and desolder wires from transistor
leads. Remove and discard defective
transistor Q1 (3).
Inspect and replace as required.
e. Mounting pad (4)
INSTALLATION
f.
Mounting pad (4)
g. Transistor Q1 (3)
h.
i.
Install replacement mounting pad (4) on
bottom of transistor Q1 (3).
Install replacement insulation sleeving on
transistor leads. Using soldering kit, solder
tagged wires to correct leads of transistor
Q1 (3). Remove wire tags.
Two screws (1), lock-
Using cross tip screwdriver, install two
washers, flat washers,
retained screws (1), Iockwashers, flat
and insulating washers
washers, insulating washers, and terminal
lug securing transistor Q1 (3) to audio
amplifier chassis (2).
See figure 4-14. Refer to
paragraph 4-52 for access
cover removal procedures.
See figure 4-15.
This was removed in
step e.
These were removed in
step d.
Before and after soldering,
clean wires and leads with
alcohol and cotton swabs.
These were removed in
step c.
Access cover (1)
Install.
See figure 4-14.
These were removed in
step b. Refer to paragraph
4-52 for access cover
installation procedures.
4-160
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