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Page Title:
DESCRIPTION OF COMPONENT LOCATION DIAGRAMS |
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|  TM
11-5820-919-40-1
all
replaceable piece parts in the radio
"Switch Q1 Fault," the schematic
is used to identify the components
The component location diagrams
set.
associated with Q1 (ie, capaci-
provide component location information
tors, resistors, inductors, etc).
only; for ordering of piece parts refer
The schematics contain pertinent
to the Repair Parts and Special Tools List
voltage and waveform data to aid
TM 11-5820-919-24P. There isaseparate diagram for
in fault isolation.
the radio set, each unit, each module, and the cable
assemblies. Each component location diagram is
6.
Component Location Diagrqms. The
supported bya repair parts and special tools list with
component location diagrams for
three columns of data, as follows:
each "Unit Under Test" are used
for three purposes:
To identify the location of all
a.
1.
ITEM column.
Item numbers
components in disassembly and
assigned in numerical sequence,
reassembly procedures.
starting with 1 , which correspond
to the item numbers shown on the
b.
component location diagram for
To identify the location of the
test points and pins required to
each component.
Numbers are
monitor waveforms and voltages
assigned clockwise, starting at
For
in the performance test and
the top of the illustration.
The
circuit card assemblies, the act-
troubleshooting
numbers printed on the backs of
ual reference designator is used
the modules correspond to the
instead of a sequence number; the
test points shown on schematics.
sequence is again clockwise, start-
ing at the top.
To identify the location of
c.
every
replaceable
component.
2.
DESCRIPTION
column.
Contains
short name or description of each
DESCRIPTION OF COMPONENT LOCATION
component. May also contain refer-
DIAGRAMS.
The component location dia-
ence designator number where
grams provide physical identification of
necessary.
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