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TM 11-5820-890-30-5
4-74. REPLACEMENT OF POWER SUPPLY HEATSINK. Continued
ITEM
ACTION
REMARKS
INSTALLATION Continued
ad.
ae.
af.
transistor Q1 (3)
Install.
See figure 4-15. Refer
to paragraph 4-53 for
installation procedures.
Resistor R1 (6)
Using soldering kit, solder wire to R1-2.
See figure 4-16.
Remove wire tags.
This was removed in
step h.
Heatsink
Position heatsink assembly to power
See figure 4-14.
assembly (11)
supply cover. Using torque screwdriver,
These were removed
tighten 20 captive screws securing heat-
step f.
ag. Connector W1P2 (1)
ah. Connector W3P3
ai. 1-Watt audio
amplifier CCA (4)
aj. Three screws (6), flat
washers, and cable
clamps (7)
ak. Access cover (1)
al.
Access
cover (1)
sink assembly (11) to power supply cover,
torque screws to 8 to 10 in-lb.
Install connector W1P2 (1) to 1-Watt
audio amplifier CCA connector J2 by
tightening two jackscrews.
Install connector W3P3 (2) to 1-Watt
audio amplifier CCA connector J1 by
tightening two jackscrews.
Using cross tip screwdriver, Install eight
See figure 4-14.
retained screws (5) and flat washers
These were removed
securing 1-Watt audio amplifier CCA (4)
step b.
to audio amplifier chassis (3).
Using cross tip screwdriver, install three
These were removed
retained screws (6), flat washers, and
step c.
cable clamps (7) securing 1-Watt audio
amplifier CCA (4) and cables to audio
amplifier chassis (3).
Position retained access cover on audio
See figure 4-14. This
amplifier chassis (3).
removed in step a.
Tighten 15 captive screws securing access
cover to audio amplifier chassis. Using
torque screwdriver and flat tip adapter,
torque screws to 9 in-lb.
in
in
in
was
4-198
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