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Page Title:
Converter IF (A20), Removal/Installation. |
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 TM 32-5865-069-24&P
replaced as follows:
a.
Remove the top and bottom covers. Refer to para 5-4.1.
b.
Remove and retain the hardware securing A17 to the chassis.
Label and unsolder all connections to A17.
c.
d.
Remove A17 from the unit.
To install a replacement, reverse the procedure detailed in steps a.
e.
thru d.
Module A20 is removed/replaced
5-4.4 Converter IF (A20), Removal/Installation.
as follows:
a.
Remove top and bottom covers. Refer to para 5-4.1.
b.
Disconnect the four coaxial cables from connectors J1 thru J4 on A20S1.
c.
Disconnect the coaxial cable connected to A20U1 - IF.
d.
Release the two captive screws and remove the multi-pin connector from J1
on the module.
e. Supporting the module, remove the four screws securing the module to the
left-hand side of the chassis. Retain the screws and washers for
reassembly.
f.
Lift the module from the chassis and remove through the top of the unit.
To install a replacement, reverse the procedure detailed in steps a.
g.
thru e. Torque SMA connectors to 8 inch-pounds.
5-4.5 -6 Volt Regulator (A21), Removal/Installation.
A21 is removed/replaced as
follows:
Refer to para 5-4.1.
a.
Remove bottom cover.
b.
Remove and retain the four screws and washers securing A21 to the rear of
the chassis.
Label and unsolder all connections.
c.
d.
Remove the A21 from the unit.
To install a replacement, remove the stand-off hardware from the faulty
e.
assembly and mount on the replacement part. Reverse the procedure detailed
in steps a. thru d.
5-22
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