WJ-8711A DIGITAL HF RECEIVER
REPLACEMENT PARTS LIST
8-1
SECTION VIII
REPLACEMENT PARTS LIST
8.1
UNIT NUMBERING METHOD
The method of numbering used throughout the unit is assigning reference designations
(electrical symbol numbers) to identify: assemblies, subassemblies, modules within a subassembly, and
discrete components. An example of the unit numbering method used is as follows:
Subassembly Designation A1
R1 Class and No. of Item
Identify from right to left as:
First (1) resistor (R) of
first (1) subassembly (A)
On the main chassis schematic, components which are an integral part of the main chassis
have no subassembly designations.
8.2
REFERENCE DESIGNATION PREFIX
The use of partial reference designations are used on the equipment and on the manual
illustrations. This partial reference designation consists of the component type letter(s) and the identifying
component number. The complete reference designation may be obtained by placing the proper prefix before
the partial reference designation. Reference designation prefixes are included on the drawings and
illustrations in the figure titles (in parenthesis).
8.3
PROVISIONING NOTE - INCONSISTENCIES
IN PART NUMBERING CONVENTIONS
The internal computer applications at Signia-IDT, Inc. have undergone upgrades to better
serve our customers. With this upgrade came alterations to the numbering scheme for parts reporting to an
end item. Due to these alterations, minor inconsistencies may exist between identifying parts numbers found
on drawings, piece parts, or other documentation. No form fit and function specifications have been altered
due to this change in the numbering scheme.
The inconsistencies take two forms. New part number conventions mandate the use of three-
digit suffixes for part numbers used within computer applications. Part numbers having single-digit suffixes
have been altered by the addition of leading zeroes. Therefore, a piece part with an identifying number having
a suffix of “-2” may be represented in a computer-generated document with a part number having a suffix of
“-002”. Also the new part numbering convention requires that the base portion of a part number be made up
of six digits. Part numbers with base portions with less than six digits are expressed with leading zeroes to
meet this requirement. Accordingly, a part number having a base of “34456” may appear as “034456”. If you
have questions or concerns regarding the configuration identification of piece parts, contact the plant for
additional information at 1-800-954-3577.
Courtesy of http://BlackRadios.terryo.org
Содержание WJ-8711A
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