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