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14-30.
Tools:
REPLACEMENT
TM 11-5820-890-30-5
OF TWO-WIRE TRANSIENT PROTECTION CIRCUIT CARD
ASSEMBLY (8A2A1).
Flat tip screwdriver
Soldering kit
Torque screwdriver
Soldering aid
Flat tip bit
Heat sink
Cross tip screwdriver
Expendable Supplies:
Solder
Alcohol
Cotton swabs
References:
Paragraph 14-17 for removal and installation of the heat sink assembly (8A1).
ITEM
ACTION
REMARKS
REMOVAL
a.
b.
c.
d.
e.
Heat sink assembly (2)
Power supply adapter
chassis (1)
Two-wire transient
protection circuit (2)
wires
Four screws, flat
washers, and
Iockwashers (3)
Two-wire transient
protection circuit (2)
INSTALLATION
f.
g.
h.
i.
Two-wire transient
protection circuit (2)
Four screws, flat
washers, and
Iockwashers (3)
Two-wire transient
protection circuit (2)
wires
assembly
Remove and retain heat sink assembly
Refer to paragraph 14-17
from power supply adapter chassis (1).
for heat sink removal.
See figure 13-2.
Set upside down on work surface with
front toward you. See figure 13-6.
Use soldering kit, soldering aid, and heat
sink. Tag location of all wires soldered
to A1 circuit near terminals E1 and E2.
Unsolder each wire from the circuit.
Use cross tip screwdriver. Remove and
inspect four screws and flat washers
securing the circuit to the chassis.
If damaged, obtain replacement. Discard
Iockwashers.
Remove defective circuit and send it to
supply for disposition.
Obtain replacement circuit and four
Iockwashers.
Use cross tip screwdriver. Install and
tighten four screws, flat washers, and
replacement Iockwashers securing the
circuit to the chassis.
Use soldering kit, soldering aid, and heat
Before and after soldering,
sink. Solder tagged wires to terminals on
clean wires and terminals
the circuit, and remove wire tags.
Heat sink
Install retained heat sink assembly
power supply adapter chassis (1).
with alcohol and cotton
swabs.
on
Refer to paragraph 14-17
for heat sink installation.
14-49
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