a. Manual Purpose. This manual provides instructions
for operation and maintenance of the AN/USM-425(V)1
Oscilloscope and includes illustrated parts breakdown
data. The AN/USM-425(V)1 is a Model 465M manufactured
by Tektronix, Incorporated, Beaverton, Oregon.
b. Manual Scope. The instructions provided in this
manual are intended to be performed at organizational
or intermediate level maintenance activities using
tools, test equipment, and spare parts authorized
in their allowance lists and supply activities.
c. Manual Arrangement. This manual is separated
into eleven sections as follows:
(1) Section I, Introduction and General Information.
Contains the purpose, scope, and arrangement of the
manual and a description of the instrument including
its leading particulars and accessories.
(2) Section II, Special Tools and Test Equipment.
Contains listings of tools, test equipment, and consumable
materials needed to maintain the instrument.
(3) Section III, Preparation for Use and Shipment.
Contains instructions for preparing the instrument for
initial use and repackaging for shipment.
(4) Section IV, Operation Instructions. Contains
instrument theory of operation; a description of
controls, connectors, and indicators; special operating
instructions; initial turn-on and adjustment procedures;
normal operation familiarization procedures; and
examples of instrument applications.
(5) Section V, Maintenance Instructions. Contains
procedures to check out, perform routine maintenance,
troubleshoot, repair, test, and adjust the instrument.
(6) Section VI, Diagrams. Contains wiring and
schematic diagrams with associated data referenced
in other sections of the manual. Also, may contain
some illustrations to improve operation and maintenance
of the instrument.
(7) Section VII, Introduction to the Illustrated
Parts Breakdown. Contains information on how to use
the illustrated parts breakdown data in Sections VIII
(8) Section VIII, Maintenance Parts List. Contains the
illustrated parts breakdown illustrations and parts