REFERENCE DESIGNATIONS. -- The unit numbering method of
assigning reference designations has been used to identify assemblies
and detail parts.
This method has been expanded as much as necessary
to adequately cover the various degrees of subdivision of the equip-
An example of the unit numbering method is illustrated by the
Read as: First (1) resistor (R) of first unit (1).
Sockets associated with a particular plug-in device such as a lamp
or a fuse, are identified by a reference designation which includes
For example, the
the reference designation of the plug-in device.
socket for lamp 1DS1 is designated 1XDS1.
REFERENCE DESIGNATION ABBREVIATION. -- The reference desig-
nations of detail parts are abbreviated in the equipment and on
The abbreviated reference designations consist of a
class letter (s) and the identifying item number.
reference designation may be obtained by placing the unit reference
designation before the abbreviated reference designation.
MAINTENANCE PARTS LIST.
Column 1 lists the reference
assignation of each part.
Column 2 is not applicable and therefore
is left blank.
Column 3 gives the name and describes the various