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|  TM
11-5820-919-40-1
FABRICATION
INFORMATION
Troubleshooting of the three frequency converter submodules is best accomplished
Each test bed is a complete and
using three separate frequency converter test beds.
functional modulator/demodulator, with the exception of the test bed extension for
The frequency converter
either the first, second, or third converter respectively.
under test is plugged into the sockets of the extension (although if a pin is
misshaped, a jumper must be inserted).
Fabrication
of
the
test
bed
extension
may
be
accomplished
as
outlined
below:
NOTE
Refer to
the
Stock
Any equivalent methods or materials may be used.
List manual for identification of piece parts required.
Cut a bare modulator/demodulator printed
wiring
board
out
around
the
first,
1.
second, and third converter positions.
2.
Insert
the
amplifier
50864
sockets
into
the
holes
for
the
pins.
Remove the appropriate frequency converter submodule
from
the
modulator/
3.
demodulator that is to be used as the test module.
Be extremely
Drill 4 holes in the test module for the extender pillars.
4.
careful to avoid damaging any printed wiring in this four-layer PC board.
Drill
4
corresponding
holes in
the
cut
out
printed
wiring
board.
5.
onto the
cut
out
printed
wiring
board.
Mount
the
extender
pillars
6.
7.
Connect
a
shielded
wire
from
each
socket
to
the
corresponding
hole
in
the
test
module.
8.
Mount
the
test
bed
extension
onto
the
test
module.
Fabricated Frequency Converter
A1A1A1, A1A1A2, A1A1A3 Test Beds
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