|
| |
TM 11-5820-890-30-5
4-20. REPLACEMENT OF TRANSISTOR Q1. Continued
ITEM
ACTION
REMARKS
INSTALLATION
e. Mounting pad (7)
Install mounting pad (7) on audio amplifier
See figure 4-7.
chassis (8).
f. Transistor Q1 (5)
Replace insulation sleeving. Using soldering
kit, solder tagged wires to correct leads of
replacement transistor. Remove wire tags.
Using cross tip screwdriver, install two re-
tained screws (1), Iockwashers (2), flat
washers (3), terminal lug (4), and two
insulating washers (6) securing transistor
to audio amplifier chassis (8).
g.
Access cover (2)
Install.
Before and after soldering,
clean wires and leads with
alcohol and cotton swabs.
See figure 4-5. This was
removed in step b.
Refer to paragraph 4-19 for
access cover installation
procedures.
4-21. REPLACEMENT OF CONNECTOR J9.
Tools:
Flat tip screwdriver
7/8-inch socket
Socket wrench
Torque screwdriver
Soldering kit
Torque wrench
Pliers
Expendable Supplies:
Silicone compound
Solder
Alcohol
Cotton swabs
References:
Paragraph 4-19 for removal and installation of access cover.
ITEM
ACTION
REMARKS
REMOVAL
a.
Mounting adapter
Set on work surface with right side
toward you.
b. Access cover (2)
Remove.
See figure 4-5. Refer to
paragraph 4-19 for access
cover removal procedures.
c. Protective cap (12)
Remove protective cap (12) from
See figure 4-7.
defective connector J9 (9).
d. Connector J9 (9)
Using 7/8-inch socket and socket wrench,
A replacement nut is
remove and discard nut (11) securing
supplied with replacement
protective cap retainer (10) and connec-
connector.
tor J9 (9) to audio amplifier chassis (8).
Disassemble connector. Slide insulator
back on wires to expose solder connec-
tions. Using soldering kit, tag and desolder
wires from connector J9. Remove and
discard defective connector J9.
4-106
|
